UNITED STATES DEPARTMENT OF AGRICULTURE

Rural Utilities Service

BULLETIN 1728F-700 

SUBJECT: RUS Specification for Wood Poles, Stubs and Anchor Logs

Incorporated by reference in 7 CFR Parts 1728 and 1755 

TO: All RUS Electric Borrowers

EFFECTIVE DATE: Date of Approval

OFFICE OF PRIMARY INTEREST: Engineering Standards Branch, Electric Program

INSTRUCTIONS: This bulletin replaces RUS Bulletin 1728F-700, RUS Specification for 

Wood Poles, Stubs and Anchor Logs, issued May 2011. File with 7 CFR Part 1728 (Electric

Borrowers).

AVAILABILITY: This bulletin can be accessed via the Internet at:

https://www.rd.usda.gov/sites/default/files/uep_bulletin_1728f-700_0.pdf

PURPOSE: To describe: (1) The minimum acceptable quality of wood poles, stubs, and 

anchor logs permitted to be purchased by or for RUS borrowers; and (2) the plans of 

procurement under which these wood products may be purchased. 

______________________________ 

Christopher A. McLean 

Acting Administrator, 

Rural Utilities Service.
Bulletin 1728F-700 

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BLANK PAGE
Bulletin 1728F-700 

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TABLE OF CONTENTS

Abbreviations 4

Definitions 4

 1. Scope 5 

 2. Related Specifications 5 

 3. General Stipulations 6 

 4. Quality Control 7 

 5. Reserve Treated Stock 8 

 6. Material Requirements (see Appendix A) 9 

 7. Preservatives 9 

 8. Preservative Treatment 9 

 9. Drawings 13 

 10. Destination Inspection 13 

 11. Purchase of Related Specifications and Standards 13 

APPENDIX A MATERIAL REQUIREMENTS 

 1. Introduction 15 

 2. Definitions 15 

 3. Pole Classes 17 

 4. Material Requirements: General 18 

 5. Material Requirements: Prohibited Defects 20 

 6. Material Requirements: Permitted Defects 20 

 7. Material Requirements: Limited Defects 21 

 8. Dimensions 24 

 9. Manufacturing Requirements 24 

 10. Storage and Handling 28 

APPENDIX A - LIST OF TABLES AND FIGURES

Table 1 Limits of Knot Sizes 22 

Table 2 General Requirements 29 

Table 3 Dimensions of Western Red Cedar and Ponderosa Pine Poles 31 

Table 4 Dimensions of Jack Pine, Lodgepole Pine, Red Pine, 

 Redwood, Sitka Spruce, Western Fir, and White Spruce Poles 32 

Table 5 Dimensions of Alaska Yellow Cedar and West Hemlock Poles 33 

Table 6 Dimensions of Douglas Fir (both types) and Southern Yellow Pine Poles 34 

Table 7 Dimensions of Western Larch Poles 35 

Table 8 Treatment and Results of Treatment 36 

Table 9 Dimension of Electric Stubs 38 

Table 10 Dimensions of Anchor Logs 38 

Table 11 Telephone Stubs for Mounting Buried Plant Terminal Housings 39 

Figure 1 Measurements of Sweep and Short Crook in Poles 30 

Figure 2 Electric Pole Framing Drawings 40 

Figure 3 Telecommunications Pole Framing Drawing 41 

Metric Conversion Factors 42 
Bulletin 1728F-700 

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INDEX: 

Poles

Specifications

Timber Products

ABBREVIATIONS

ACZA - Ammoniacal Copper Zinc Arsenate

ANSI - American National Standards Institute

ASTM - American Society for Testing and Materials

AWPA - American Wood Protection Association

CCA - Chromated Copper Arsenate

CuN - Copper Naphthenate 

RUS - Rural Utilities Service

SPIB - Southern Pine Inspection Bureau 

USDA - United States Department of Agriculture

WCLIB - West Coast Lumber Inspection Bureau

DEFINITIONS

Butt treated – poles that are only treated in the section of the pole in contact with the ground. 

Certificate of compliance – a written certification by an authorized employee of the producer that 

the material shipped meets the requirements of this specification and any supplemental 

requirements specified in a purchase order from a borrower or the borrower's contractor. 

Contractor – an organization retained by a RUS borrower to construct a power line in accordance 

with the contract under which the RUS borrower and contractor execute. The contractor agrees 

to provide and utilize only wood products that meet the requirements of this specification.

Independent inspection – refers to examination of material by a trained inspector employed by a 

commercial agency.

Inspection – an examination of material in sufficient detail to ensure conformity with all 

requirements of the specification under which it was purchased. 

Producer – refers to the party who manufactures poles. In some cases the producer may also be 

the treating plant.

Purchaser – refers to either the RUS borrower or a contractor acting as a RUS borrower's agent, 

except where a part of the specification specifically refers to only the borrower or the contractor. 

Quality control supervisor – refers to an employee of the producer designated to be responsible 

for quality control procedures carried out by said producer. 

Reserve treated stock – treated material held in storage by a producer for purchase and 

immediate shipment to a borrower.

Supplier – term that may refer to the producer, the treater, or to a third party broker or 

distributorship involved in supplying RUS products to the borrowers. 

Transmission poles – unless otherwise indicated, are any poles 50 feet or longer.

Treating charge – all the material treated in a cylinder at one time.

Treating plant – refers to the facility that applies the preservative treatment to the poles.
Bulletin 1728F-700 

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1 SCOPE

a This specification describes the minimum acceptable quality of wood poles, stubs, 

telephone pedestal stubs, and anchor logs (hereinafter called poles, except where 

specifically referred to as stubs or anchor logs) purchased by or for RUS

borrowers. Where there is conflict between this specification and any other 

specification referred to herein, this specification shall govern. 

b The requirements of this specification implement contractual provisions between 

RUS and borrowers receiving financial assistance from RUS. The contractual 

agreement between RUS and a RUS borrower requires the borrower to construct 

its system in accordance with RUS accepted plans and specifications. Each RUS

electric and telecommunications borrower shall purchase only wood poles, stubs, 

and anchor logs produced in accordance with this specification. Each RUS

electric or telecommunications borrower shall require a written confirmation from 

their selected contractor that all material utilized shall be produced in accordance 

with this specification.

2 RELATED SPECIFICATIONS

The following specifications may be considered as pertinent to this specification, subject 

to the restrictions in the paragraph under "Scope." All AWPA references shall be those 

in effect in the 2020 AWPA Book of Standards or latest version thereof. 

a ANSI O5.1.2017 - American National Standard Specifications and Dimensions 

for Wood Poles; 

b ASTM D9-20 - Standard Technology Relating to Wood and Wood Based 

Products; 

c Standard No. 17 Grading Rules for West Coast Lumber, West Coast Lumber 

Inspection Bureau, (2018);

d Standard Grading Rules for Southern Pine Lumber, Southern Pine Inspection 

Bureau, (2014);

e AWPA U1-20- Use Category: System User Specification for Treated Wood

f AWPA T1-20- Use Category System: Processing and Treatment Standard

g AWPA M1-20 - Standards for the Purchase of Treated Wood Products 

h AWPA M4-15 - Standard for the Care of Preservative-Treated Wood Products 

i AWPA A6-20 - Method for the Determination of Oil-Type Preservatives and 

Water in Wood 

j AWPA A7-19 - Standard Wet Ashing Procedure for Preparing Wood for 

Chemical Analysis 
Bulletin 1728F-700 

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k AWPA A9-20 - Standard Method for Analysis of Treated Wood and Treating 

Solutions by X-ray Spectroscopy 

l AWPA A30-18 Standard Method for the Determination of 4,5 Dichloro-2-noctyl-4 -isothizolin-3 one (DCOI) in Wood and Solutions by High Performance 

Liquid Chromatography 

3 GENERAL STIPULATIONS

a Quality control and inspection shall be in accordance with Bulletin 1728H-702, 

RUS Specification for Quality Control and Inspection of Timber Products. 

Provisions of this specification and ANSI O5.1, which are positive in their 

wording, shall not be interpreted or subjected to judgment by the quality control 

supervisor or a third party inspector. Judgment, although used by quality control 

personnel and independent inspectors, shall not be the basis for acceptance of 

material which does not conform to the minimum requirements of this 

specification. 

b Each purchase order shall contain a provision that requires the producer to comply 

with the provisions of this specification. 

c Purchase Plans. Plans which are acceptable for supplying poles under this 

specification include:

(1) Quality Assurance Plans: Under such plans, the producer furnishes poles 

conforming to this specification which have been inspected in accordance 

with the provisions of a RUS approved quality assurance plan. RUS

borrower groups or agents for borrower groups endeavoring to operate 

Quality Assurance Plans shall submit their plans to the Chairman, 

Technical Standards Committee “A”, Rural Utilities Service, 1400 

Independence Ave, S.W., Stop 1569, Washington, DC 20250-1569. 

Written RUS approval of a submitted plan must be received from RUS 

before said plan can be implemented. 

(2) Independent Inspection Plan: Under this plan, the producer furnishes 

poles meeting this specification, with all poles subsequently inspected by a 

qualified inspector.

The RUS borrower has the prerogative to contract directly with the agency 

for the inspection service. The borrower shall, where practical, select the 

inspection agency so that the inspector's continued employment is 

dependent only on performance acceptable to the borrower. The selected 

agency shall not subcontract the service to any other agency. 

d With the exception of reserve treated stock, all invoices for treated timber 

products shall be accompanied by a copy of the producer's Certificate of 
Bulletin 1728F-700 

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Compliance and either a copy of the independent inspection report or a certificate 

confirming that the material was produced under a RUS approved quality 

assurance plan. 

e The method of inspection described in this section shall be used no matter which 

purchase plan timber products are purchased under.

f Poles failing to conform to any provision covered by this specification shall not 

be shipped to the purchaser. The producer shall remove all brands, quality or 

inspection marks from any such material.

g Poles shall be warranted to conform to this specification. Any pole found not in 

conformance with this specification, within 1 year from date of delivery to the 

purchaser, shall be promptly replaced by the producer. 

h Pole producers shall take out and maintain liability insurance for not less than $1 

million. Evidence of compliance shall be forwarded to RUS annually. The 

evidence shall be in the form of a dated certificate of insurance signed by a 

representative of the insurance company, that includes a provision that no changes 

in, or cancellation of said insurance will be made without prior written notice to 

the Chairman Technical Standards Committee “A”, Rural Utilities Service,1400 

Independence Ave, S.W., Stop 1569, Washington, DC 20250-1569. 

4 QUALITY CONTROL

a It is the responsibility of each producer to maintain a functional internal quality 

control system. In addition to maintaining plant and yard conditions that do not 

promote decay, the following is considered to be mandatory requirements of any 

plant involved in the production of RUS white or treated materials:

(1) Quality control shall be the responsibility of an experienced, competent 

individual designated for that specific purpose (quality control supervisor), 

together with such staff as may be required. The quality control 

supervisor shall have the necessary training to carry out both the analytical 

and product inspection procedures detailed in this specification and shall 

verify each step in the production process before releasing white or treated 

material for verification of conformance by a third party inspector. No 

material shall be treated before it has been inspected in the white and has 

the required quality assurance/inspection marks placed in the tips.

(2) The quality control supervisor and the third party inspector shall each 

perform all examinations, tests, and required analytical work individually 

and independently. Neither shall rely on the other individual's results in 

the discharge of their duties.
Bulletin 1728F-700 

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(3) Treating and inspection records for all RUS materials shall be maintained 

by the producer for a minimum of two years from the original date of 

treatment.

(4) Throughout the production process, the plant quality control supervisor 

shall withdraw all poles deemed non-conforming. Poles failing to meet all 

treatment requirements may be re-treated not more than twice, provided 

that the total allowable steaming times and temperatures are not exceeded. 

The producer shall promptly remove face brands/tags from all material 

found to be non-conforming, subject to the foregoing provision for retreatment.

b The producer shall provide the inspector with all supplemental customer 

specification requirements (drawings, etc.) contained in a purchase order received 

from a borrower. 

c Providing “Treating Service Only” does not relieve the treating plant of any 

responsibilities associated with RUS poles being treated at said facility. The plant 

quality control supervisor shall verify that all poles are treated within 30 days of 

conditioning if kiln dried and within 10 days after being inspected in the white.

d The producer shall maintain its own properly staffed and equipped analytical 

laboratory or contract with an independent testing laboratory at or near the 

treating plant to provide the required analytical service. On a case-by-case basis, 

with written permission from RUS, a producer with more than one treatment 

facility may be allowed to use a central laboratory.

5 RESERVE TREATED STOCK

Reserve treated stock shall be subject to the following conditions:

a Producers shall treat material for reserve treated stock under any of the purchase 

plans (paragraph 3 c) described in the specification.

b No material treated with creosote, pentachlorophenol, DCOI or copper 

naphthenate shall be shipped for use on a RUS borrower's system later than 1 year

following the original treatment date branded on the material, unless it complies 

as follows:

(1) The material shall be re-assayed by the producer. If conforming to 

preservative retention requirements, as shown in Table 8, it may be 

shipped. Re-assayed poles shall be identified on the sawed butt surface 

with a metal tag showing date of re-assay. 

(2) If the re-assayed material fails to meet retention requirements and is less 

than two years from its original treatment date, the producer must retreat, 

re-assay and butt tag said material per the tagging requirements in 5.b.1. 
Bulletin 1728F-700 

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(3) Waterborne treated poles need not be re-assayed.

c No pole shall be shipped to a RUS borrower more than two years after its original 

treatment date. 

6 MATERIAL REQUIREMENTS (see Appendix A)

All poles shall conform to the material requirements shown in Appendix A. 

7 PRESERVATIVES

Creosote, water-borne preservatives, pentachlorophenol, DCOI and copper naphthenate 

shall conform to current AWPA Standard U1-20. 

8 PRESERVATIVE TREATMENT

a Conditioning Prior to Treatment: All poles, except as stated below, shall be 

sterilized by heating the pith center of the pole for one hour, at not less than 

150°F, unless stated otherwise. 

(1) Treatment Group "A" poles (see Table 2, Appendix A of this bulletin) 

may be seasoned by natural air circulation. Extreme care shall be taken to 

ensure that air seasoned poles do not have pretreatment decay in them. 

(refer also to paragraph 5.b of Appendix A). Treatment Group “A” poles 

are not required to be sterilized 

(2) Treatment Group "B","C" and "D" poles from Table 2, Appendix A of this 

bulletin, shall be conditioned by Boulton drying, by the steam-vacuum 

process or by kiln drying. The Boulton drying process and steam vacuum 

process shall have the following limits:

(a) Boulton Drying: 

Boulton Drying

Species Temperature

°F 

Duration 

(hours)

Green or partially seasoned

Douglas - fir (coast) 220 max. optional* 

Western Larch 220 max. optional* 

* Duration of Boulton drying shall be counted from the time 

the wood surface is warmed to approximately 150°F. 
Bulletin 1728F-700 

Page 10

(b) Steam-Vacuum Process: 

(c) Kiln Drying: See paragraph 4.2.3 of Appendix A for limitations. 

b Treatment (Pressure Process): All poles treated by this process shall be treated in 

a cycle in which the temperatures and pressures shown are not exceeded. These 

pressures and temperatures shall be recorded electronically, digitally or on a 

calibrated recording chart and shall be verified by visual observations of the direct 

reading gauges throughout the treating cycle by a qualified representative of the 

treating plant.

Pressure Process

Species

Preservative Temperature in °F Impregnation 

lb/in Creo. & 2

Oil-borne ACZA CCA

Western Red Cedar 220 150 120 100 

Alaska Yellow Cedar 220 150 120 100 

Jack & Red Pine 220 150 120 150 

Douglas-fir (coast)

& Western Larch 220 150 --- 150 

Southern Pine 220 150 120 200 

Ponderosa (Western)

Pine 220 150 120 200 

Steam (limits)

Species Temperature °F 

Total Time(4)

Max Hours 

Southern Pine 245 max. 17 (1), 20 (2)

Ponderosa Pine 240 max. 6(3)

Notes:

1. Pole classes nominally less than 37.5 inches in 

circumference at 6 feet from butt.

2. Pole classes nominally 37.5 inches or larger in 

circumference at 6 feet from butt.

3. See Appendix A, paragraph 4.2.4 for specific limitations.

4. Initial treatment steaming time plus any re-treatment 

steaming time, combined, shall not exceed these maximums. 
Bulletin 1728F-700 

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All poles treated with waterborne preservatives shall use the full cell or modified 

full cell process as described in AWPA Standard U1 except as modified by the 

provisions of ANSI O5.1.

c Thermal Process – Full-Length and Butt Treatment. Poles species shown in Table 

8 may be treated by the Thermal process or Butt treated. AWPA Standards U1, 

T1, M1 and M4 shall apply.

(1) All poles treated by this process shall be adequately seasoned by natural 

and artificial methods prior to treatment so that specification requirements 

for penetration and retention are met.

(2) The temperature of the preservative during the hot oil phase shall not 

exceed 230°F. 

d Results of Treatment

(1) Penetration and retention of preservative shall be tested using borings 

taken at any point on the pole periphery approximately: 

(a) 1 foot below nominal ground line of all butt treated poles. 

(b) Six to twelve inches above the nominal ground line of western red 

cedar, Alaska yellow cedar and western larch poles.

(c) Within the zone one foot above to one foot below the brand on all 

other species of poles. 

(2) Retention of preservative shall be no less than that specified in Table 8. 

(3) Penetration of preservative, as determined in accordance with AWPA 

Standard A3, shall not be less than that specified in Table 8 of Appendix 

A. Chrome Azurol S shall be used to determine penetration of copper 

containing preservatives, Penta-Check for penetration of penta and Red-O 

dye for penetration of DCOI, respectively. Penetration depth shall be 

measured along a boring from the outer end toward the inner end for a 

distance throughout which there is continuous preservative penetration, as 

indicated by evidence of preservative in each annual ring included. 

(a) For Group A poles (Those poles with a circumference of less than 

37.5 inches at 6 feet from butt): 

(1) Bore 20 poles or 20 percent of the poles in the charge, 

whichever is greater. Accept all poles in the charge for 

penetration if every boring in the sample conforms. If any 

sample fails penetration, bore all poles in the charge. 
Bulletin 1728F-700 

Page 12

(2) If more than 15% of the poles in the charge are found to be 

nonconforming, the entire charge shall be retreated. If 15% 

or less are found to be nonconforming, remove and retreat 

only those that are nonconforming. 

(b) For Group B poles (Those poles with a circumference of 37.5 

inches or greater at 6 feet from butt): 

(1) For Group B poles 45 feet and under, bore each pole in the 

charge. If more than 15% of these poles are found to be 

nonconforming, the entire charge shall be retreated. If 15% 

or less are found to be nonconforming, remove and retreat 

only those that are nonconforming. 

(2) For Group B poles 50 feet and over, bore each pole twice at 

90 degrees apart and accept only those poles conforming to 

penetration in both borings. 

(3) When poles which have been deep incised or radial drilled 

are bored for penetration and retention testing, the borings 

shall be taken midway on a diagonal between an incision or 

hole in the next vertical row above or below. 

(4) Non-conforming poles may be retreated only twice. The 

letter “R” shall be added to the original charge number in 

the butts of all poles that are retreated. Poles failing to 

meet treating requirements after two retreatments shall be 

permanently rejected and all brand and butt information 

removed. (See paragraph 9.e in Appendix A of this bulletin 

for branding information.) 

e All poles that are cutback after treatment shall be re-treated.

(1) Creosote, Penta, DCOI and Copper Naphthenate. Total steaming time, 

both for initial treatment and re-treatment, is cumulative and shall not 

exceed the limits for steam found in paragraph 8.a(2)(b). Re-treatment of 

cutback or reserve treated stock poles shall be by submersion in 

preservative for not less than 10 minutes under 25 pounds per square inch 

gauge pressure or not less than 30 minutes at atmospheric pressure.

(2) Water-borne Preservatives: Poles which require re-treatment shall be air 

dried sufficiently to accept re-treatment. Re-treatment shall be within 

original treatment limitations. Re-treated poles shall conform fully to all 

the requirements of this specification; otherwise, they shall be 

permanently rejected.
Bulletin 1728F-700 

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9 DRAWINGS

The attached drawing W1.1G or M-20 in Appendix A shows in detail the standard 

framing (gains and bolt holes) for electric distribution poles ordered under this 

specification. Other distribution pole framings are shown in RUS specifications and 

drawings: Bulletin 1728F-803, Specifications and Drawings for 24.9/14.4 kV Line 

Construction and Bulletin 1728F-804, Specifications and Drawings for 12.5/7.2 kV Line 

Construction. Framing drawings for electric transmission poles are shown in Electric 

Transmission Specifications and Drawings: Bulletin 1728F-810, “Electric Transmission 

Specification and Drawings 34.5 through 69 kV” and Bulletin 1728F 811, “Electric 

Transmission Specifications and drawing 115 kV through 230 kV.” Pole stub and anchor 

log dimensions are shown in the above specifications and drawings or Tables 9, 10 and 

11 of Appendix A of this bulletin. The appropriate framing drawings shall be designated 

and provided by the purchaser. 

10. DESTINATION INSPECTION

The RUS borrower shall have the prerogative to inspect materials at destination. All provisions 

of this specification shall apply to material inspected at destination. If a disagreement arises over 

conformance of materials received at destination, it shall be the responsibility of the supplier to 

attempt to resolve this matter with the purchaser.

11. PURCHASE OF RELATED SPECIFICATIONS AND STANDARDS

All ANSI and AWPA standards may be purchased from: 

American Wood Protection Association (AWPA)

 P.O. Box 361784 

 Birmingham, Alabama 35236-1784 

Telephone: (205)733-4077 

 Standard Grading Rules for Southern Pine Lumber may be purchased from: 

 Southern Pine Inspection Bureau 

 4709 Scenic Highway 

 Pensacola, Florida 32504-9094 

Telephone: (850) 434-2611 

Standard Grading Rules for West Coast Lumber may be purchased from: 

West Coast Lumber Inspection Bureau 

 P.O. Box 23145 

 Portland, Oregon 97281 

 Telephone: (503) 639-0651 
Bulletin 1728F-700 

Page 14

Blank Page 
Bulletin 1728F-700 

Appendix A 

Page 15

APPENDIX A MATERIAL REQUIREMENTS

1 INTRODUCTION

The material specifications described in this section are primarily based on the ANSI 

O5.1 Specification and Dimensions (for Wood Poles). The purpose of this document is 

to describe the minimum acceptable quality of wood poles, stubs and anchor logs 

permitted to be purchased by or for RUS borrowers. 

2 DEFINITIONS

The following definitions shall apply to the terms used in this standard: 

Air Seasoning - Drying by the use of air where the air temperature is not more than 140°F

either in the open or under cover. 

Boulton Drying - Drying by heating in non-aqueous solution under vacuum. 

Check - The lengthwise separation of the wood that usually extends across the rings of 

annual growth and commonly results from stresses set up in wood during seasoning.

Compression Wood - Abnormal wood formed on the lower side of branches and inclined 

trunks of softwood trees. Compression wood is identified by its relatively wide annual 

rings, usually eccentric; relatively large amount of summerwood, sometimes more than 

50 percent of the width of the annual rings in which it occurs; and its lack of demarcation 

between springwood and summerwood in the same annual rings. Compression wood, 

compared with normal wood, shrinks excessively lengthwise.

Cross Break - A separation of the wood cells across the grain. Such breaks may be due to 

internal strains resulting from unequal longitudinal shrinkage or to external forces.

Dead Streak - An area, devoid of bark, resulting from progressive destruction of the 

growth cells of wood and bark at the edges of the streak. On a pole, a dead streak is 

characterized by a discolored weathered appearance and by lack of evidence of 

overgrowth along the edges of the deadened surface. 

Decay - The decomposition of wood substance by fungi. 

Decay, Advanced (or Typical) - The older stage of decay in which the destruction is 

readily recognized because the wood has become punky, soft and spongy, stringy, ringshaked, pitted, crumbly, or, in poles not stored or rafted in water, is in a soggy condition. 

Decided discoloration or bleaching of the rotted wood is often apparent. 

Decay, Incipient - The early stage of decay that has not proceeded far enough to soften or 

otherwise perceptibly impair the hardness of the wood. It is usually accompanied by a 

slight discoloration or bleaching of the wood. Incipient Decay can occur in living trees. 
Bulletin 1728F-700 

Appendix A 

Page 16 

Decayed Knot - A knot containing decay. Two types of decayed knots are recognized. 

Type I Knots containing soft or loose fibers (decay) which may extend the full 

length of the knot into the pole and which are associated with heart rot. 

Type II Knots containing soft or loose fibers (decay) which are not associated 

with heart rot. 

Face of Pole - The concave side of greatest curvature in poles with sweep in one plane 

and one direction, or the side of greatest curvature between groundline and top in poles 

having reverse or double sweep. 

Ground Line Section - That portion of a pole between 1 foot above and 2 feet below the 

ground line, as defined in the pole dimension tables (see Tables 3 through 7). (For 

purposes of defining the ground line when incising or radial drilling, see paragraphs 9.7.1 

and 9.7.2.) 

Hollow Heart - A void in the heartwood caused by decay or insect attack.

Hollow Pith Center - A small hole at the pith center of the trunk or of a knot caused by 

disintegration of the pith (small soft core occurring in the structural center of a tree or 

branch). 

Insect Damage - Damage resulting from the boring into the pole by insects or insect 

larvae. Scoring or channeling of the pole surface is not classed as insect damage.

Kiln Drying - Drying by the use of heated air in batch or progressive-type kilns.

Knot Cluster - Two or more knots grouped together as a unit, the fibers of the wood being 

deflected around the entire unit; distinct from the group of single knots in which each is a 

unit. A knot cluster shall be considered as a single knot. 

Knot Diameter - The diameter of a knot on the surface of the pole measured in a direction 

at right angles to the lengthwise axis of the pole. The sapwood as well as the heartwood 

portion of a knot shall be included in the measurement. 

NOTE: For a description of means for defining the limits of knots, see American 

National Standard Definitions of Terms Relating to Timber, ASTM D9-20. 

Lot - A quantity of poles of like size, conditioning, and fabrication usually making up one 

treating charge.

Red Heart - A condition caused by a fungus, Fomes pini, that occurs in the living tree. It 

is characterized in the early stages of infection by a reddish or brownish color in the 

heartwood; known as "firm red heart." Later the wood of the living tree disintegrates 

(decays) in small, usually distinct, areas that develop into white-lined pockets. 
Bulletin 1728F-700 

Appendix A 

Page 17 

Sap Stain - A discoloration of the sapwood, caused by the action of certain molds and 

fungi, that is not accompanied by softening or other disintegration of the wood. 

Scar - A depression in the surface of the pole resulting from a wound where the living 

tree has not compartmentalized the wound and reestablished the normal cross section of 

the pole. 

Scar, Turpentine Acid Face - An area in the lower portion of a southern pine pole where 

bark hack removal with acid applied has caused resin to flow. No removal of sapwood 

has occurred.

Scar, Turpentine Cat Face - A depression in the surface of a southern pine pole resulting 

from a wood hack into the sapwood, where the tree has not compartmentalized the wound 

and reestablished the normal cross section of the pole. 

Shake - A separation along the grain, the greater part of which occurs between the rings 

of annual growth. 

Shelling - Ring separation extending to the surface of round or sawn timber normally 

following the growth rings and often associated with limiting defects such as knots, 

compression wood or shake. Ring separation usually becomes more pronounced as the 

product dries and may be further aggravated by stress developed during horizontal lifting 

or loading. 

Short Crook - A localized deviation from straightness which, within any section 5 feet or 

less in length, is more than 1/2 the mean diameter of the crooked section (see Fig. 1, 

Diagram 3).

Spiral-Grained (Twist-Grained) Wood - Wood in which the fibers take a spiral course 

about the trunk of a tree instead of a vertical course. The spiral may extend in a righthand or left-hand direction around the tree trunk. Spiral grain is a form of cross grain.

Split - A lengthwise separation of the wood extending completely through the piece from 

one surface to another. 

Steam Conditioning - Subjecting poles in a closed vessel to steam prior to treatment.

Sweep - Deviation of a pole from straightness (see Fig. 1, Diagrams 1 and 2, Exhibit A). 

3 POLE CLASSES

Poles meeting the requirements of this standard are grouped in the classes identified in 

Tables 3 through 7 of this Appendix, based on their circumference measured 6 feet from 

the butt. Poles of a given class and length are designed to have approximately the same 

load carrying capacity regardless of species.
Bulletin 1728F-700 

Appendix A 

Page 18 

4 MATERIAL REQUIREMENTS: GENERAL

a Species: 

(1) Poles. See Table 2, Appendix A. 

(2) Pedestal Stubs 

(a) All round pedestal stubs shall conform to material requirements for 

poles. Plywood peeler cores, and similar material where the 

sapwood has been largely removed, are not acceptable. 

(b) All sawn stubs shall conform to the following material 

requirements:

All sawn stubs furnished under this specification shall be free of 

brashy wood, cross breaks, decay, insect holes larger than 3/32 of 

an inch, and dried to a moisture content of not more than 19 

percent. The stubs shall be surfaced on four sides, shall meet 

additional requirements as shown on specification drawings, and 

shall be made of one of the following: 

Coastal origin Douglas-fir conforming to provisions of No. 1 

"Structural Joists and Planking," per paragraph 123b, of Standard 

17, Grading Rules for West Coast Lumber . 

Southern Yellow Pine conforming to the provision of No. 1 

"Structural Joist and Planks" as per paragraph 312 of the Southern 

Pine Inspection Bureau (SPIB) Grading Rules. 

b Conditioning, Seasoning, and Treatment Limitations: 

(1) Air Seasoning: Air seasoning shall be in conformance with this 

specification for preservative treatment without developing pretreatment 

decay. Steaming before or after treatment is permitted for species in 

Treatment Group A. However, if such steaming is employed, the 

maximum temperature does not exceed 240°F. The total steaming time 

from the time steam is introduced into the cylinder, including both initial 

and final steam, shall not exceed 4 hours duration. 

Pedestal stubs which are air-seasoned shall be checked to the heartwood. 

Their moisture content shall not exceed 25 percent at a depth of 1-1/2 

inches or at the sapwood/heartwood line, whichever is less. All sawn 

pedestal stubs shall be dried to a moisture content of not more than 19 

percent prior to treatment.
Bulletin 1728F-700 

Appendix A 

Page 19 

(2) Boulton Drying Temperature: The temperature employed in Boulton 

drying poles of species listed under Treatment Group B of Table 2 shall 

not exceed 220°F. These poles may be steamed up to 240°F for a 

maximum time of 4 hours, but such steaming shall be limited to steaming 

after treatment.

(3) Kiln Drying: Where kiln drying is employed on southern pine, ponderosa 

pine, red pine, jack pine, lodgepole pine, Douglas-fir (coast), and western 

larch, the maximum dry bulb temperature shall be increased gradually and 

shall not exceed 170°F (with the exception noted below). Where kiln 

drying is employed on western red cedar, the maximum dry bulb 

temperature shall be increased gradually and shall not exceed 160°F. In 

compartment kilns operating at temperatures up to 170°F, the maximum 

wet bulb depressions shall not exceed 50°F with the exception that during 

the first 24 hours there is no limitation on wet bulb depression. In 

progressive-type kilns operating at temperatures up to 170°F, the 

maximum wet bulb depression shall not exceed 50°F in the body of the 

kiln and 90°F at the entrance to the kiln. Exception: Drying over 170°F is 

permitted for southern pine, red pine, lodgepole pine, Douglas-fir (coast), 

and western larch species. The maximum dry bulb temperature shall not 

exceed 230°F for these species. For dry bulb temperatures over 200°F, the 

wet bulb depression shall be not less than 50°F with the exception that 

during the first 24 hours there is no limitation on wet bulb depression. 

Temperature and humidity readings throughout the kiln shall be recorded 

on a recording chart and verified by observation of direct reading 

equipment. Gauges and recording equipment shall be calibrated annually. 

(4) Steam Conditioning: The steam temperature employed in steam 

conditioning for poles of species in Treatment Group C of Table 2 shall 

not exceed 245°F. The time duration for poles with specified 

circumferences 37.5 inches or less at 6 feet from the butt shall not exceed 

17 hours. Poles with specified circumferences larger than 37.5 inches at 6 

feet from the butt shall not exceed 20 hours. 

c Solvent Recovery. When poles of any species have been treated with a system 

using an organic solvent-based preservative solution, a solvent recovery cycle of 

not over 15 hours at a maximum temperature of 225°F is permitted, provided each 

pole has a moisture content of 25% or below before treatment when measured 

with a calibrated resistance-type moisture meter at 2 inches from the surface at 

mid-length. 

d Rate of Growth: The average rate of growth measured on the sawed butt surface 

in the outer 2 inches of poles having a circumference of 37.5 inches or less at 6 

feet from the butt, and in the outer 3 inches of poles having a circumference of 

more than 37.5 inches at 6 feet from the butt, shall not be less than six rings per 
Bulletin 1728F-700 

Appendix A 

Page 20 

inch. Exception: Poles with four and five rings per inch are acceptable if 50 

percent or more summerwood is present. 

For poles exhibiting a non-uniform growth rate around the circumference, the 

average growth rate shall be determined at the midpoint of the shortest arc 

between the point showing the fewest growth rings in the required zone and the 

point showing the most growth rings in the required zone. 

If visual observation of the rate of growth in the butt surface is inconclusive, the 

referee method for making such a determination is as follows; ring count and 

summerwood determination is made on an increment core taken 6 feet from the 

butt directly above the location where the average rate of growth is indicated on 

the butt surface.

5 MATERIAL REQUIREMENTS: PROHIBITED DEFECTS

a Cross breaks (cracks). 

b Decay, except as permitted for firm red heart in paragraph 6.a, defective butts in 

paragraph 7.d and decayed knots in paragraph 7.f of this Appendix. The presence

of fungal fruiting bodies or mycelium on or in a piece of wood shall be considered 

as evidence of decay and the piece of wood shall be permanently rejected as 

nonconforming. In the absence of such visual signs of decay, if conditions such 

as surface softening or discoloration indicate the possibility of decay, a boring 

should be taken from the affected area and carefully examined by both the quality 

control supervisor and the third party inspector to determine if decay is present.

c Dead streaks, except as permitted in paragraph 7.c in this Appendix. 

d Holes, other than drilled holes provided for in the specification, open or plugged, 

except holes for test purposes, which shall be plugged with treated plugs. 

e Hollow butts or tops, except as permitted under hollow pith centers and defective 

butts. 

f Marine borer damage. 

g Nails, spikes and other metals not specifically authorized by the purchaser. 

6 MATERIAL REQUIREMENTS: PERMITTED DEFECTS

a Firm Red Heart: Firm red heart not accompanied by softening or other 

disintegration (decay) of the wood is permitted.

b Hollow Pith Centers: Hollow pith centers in tops or butts and in knots are 

permitted in poles that are to be given full-length treatment.
Bulletin 1728F-700 

Appendix A 

Page 21 

c Sap Stain: Sap stain that is not accompanied by softening or other disintegration 

(decay) of the wood is permitted.

d Scars: Turpentine acid face scars are permitted anywhere on the pole surface.

7 MATERIAL REQUIREMENTS: LIMITED DEFECTS

a Bark Inclusions: Depressions containing bark inclusions shall not be more than 2 

inches in depth, measured from the surface of the pole.

b Compression Wood: The outer 1 inch of all poles shall be free from visible 

compression wood. 

c Dead Streaks: A single, sound dead streak is permitted in cedar, provided the 

greatest width of the streak is less than 1/4 of the circumference of the pole at the 

point of measurement.

d Defective Butts: Hollowing in the butt caused by "splinter pulling" in felling the 

tree is permitted, provided that the area of such a hollow is less than 10 percent of 

the butt area. Hollow heart or decay, or both, is permitted in cedar poles only, 

provided the aggregate area of the hollow heart or decay, or both, does not exceed 

10 percent of the entire butt area and does not occur closer than 2 inches to the 

side surface and provided that the depth of the hollow does not exceed 2 feet, 

measured from the butt surface.

e Insect Damage: Insect damage, consisting of holes 1/16 inch or less in diameter, 

or surface scoring or channeling is permitted. All other forms of insect damage 

are prohibited, except those associated with hollow heart in cedar poles.

f Knot: The diameter of any single knot and the sum of knot diameters in any 1-

foot section shall not exceed the limits of Table 1. In determining the sum of knot 

diameters in any 1-foot section, only those knots with diameters over 0.5 inch 

whose pitch centers fall within the section shall be included in the sum, and the 

one-foot section shall be located so as to include the maximum number of knots, 

i.e., the most severe condition. Type II "decayed knots" are permitted. 
Bulletin 1728F-700 

Appendix A 

Page 22 

TABLE 1 LIMITS of KNOT SIZES 

Maximum Knot Sizes Permitted

Diameter of any single knot

Sum of diameters of all knots 

greater r than 0.5 inch in any 

1-foot section

Length of Pole Classes H6 to 3

(Inches)

Classes 4 to 10

(Inches) All Classes

45 Feet and Shorter

Lower Half of Length 3 2 1/3 of the average 

circumference of the same 1' 

section or 8", whichever is 

greater, but not to exceed 12" 

(Note 1) Upper Half of Length 5 4 

50 Feet and Longer

Lower Half of Length 4 4 1/3 of the average 

circumference of the same 

l' section or 10", whichever is 

greater, but not to exceed l4" 

(Note 1) Upper Half of Length 6 6 

Notes:

1. Both upper and lower halves. 

2. See section 3 and Tables 3 through 7 of Appendix A for pole classes.

g Scars (Cat Face): No pole shall have a scar or turpentine cat face (southern pine) 

located within 2 feet of the ground line. Turpentine scars need be trimmed only to 

the extent necessary for examination for evidence of fungus infection and insect 

damage. Other sound scars are permitted elsewhere on the pole surface, provided 

they are smoothly trimmed and do not interfere with the cutting of any gain and 

provided that:

(1) The circumference at any point on trimmed surfaces located between the 

butt and 2 feet below the ground line is not less than the minimum 

circumference specified at 6 feet from the butt for the class and length of 

the pole; and 

(2) The depth of the trimmed scar is not more than 2 inches, if the diameter is 

10 inches or less, or 1/5 the pole diameter at the location of the scar if the 

diameter is more than 10 inches.

h Shakes. Shakes in the butt surface which are not closer than 2 inches to the side 

surface of the pole are permitted, provided they do not extend to the ground line. 

Shakes or a combination of connected shakes which are closer than 2 inches to the 

side surface of the pole are permitted, provided they do not extend further than 2 
Bulletin 1728F-700 

Appendix A 

Page 23 

feet from the butt surface and do not have an opening wider than 1/8 inch. Shakes 

in the top surface are permitted in poles that are to be given full-length 

preservative treatment, provided that the shake is not closer to the surface of the 

pole than the midpoint of a line extending from the pith to the surface (i.e., the 

shake is permitted if it is closer to the pith than to the surface of the pole).

i Shape: Poles shall be free from short crooks. A pole may have sweep subject to 

the following limitations:

(1) Where sweep is in one plane and one direction only: For all poles species, 

a straight line joining the surface of the pole at the ground line and the 

edge of the pole at the top shall not be distant from the surface of the pole 

at any point by more than 1 inch for each 10 feet of length between these 

points. (See figure 1).

(2) Where sweep is in two planes (double sweep), or in two directions in one 

plane (reverse sweep), a straight line connecting the midpoint at the 

ground line with the midpoint at the top shall not at any intermediate point 

pass through the surface of the pole (See figure 1, diagram 2).

j Shelling. Shelling on the surface of a pole shall be limited to no more than 1 inch 

in depth nor exceed 1/3 of the pole’s circumference at the point of shelling. 

k Spiral Grain: Spiral grain (twist grain) is permitted as follows:

Length of Pole (Feet) Maximum Twist of Grain Permitted

30 and shorter 1 complete twist in any 10 ft.

35-45, inclusive 1 complete twist in any 16 ft.

50 and longer 1 complete twist in any 20 ft.

l Splits and Checks: 

(1) In the top: A split or a combination of two single checks (each check 

terminating at the pith center and separated by not less than 1/6 of the 

circumference) having one or both portions located in a vertical plane 

within 30 degrees of the top bolt hole shall not extend downward along the 

pole more than 6 inches. All other combinations of checks or a split shall 

not extend downward along the pole more than 12 inches. (Two checks of 

approximately the same width, each check terminating at the pith center 

and separated by 1/2 inch or less of wood fiber at any point on the pole 

circumference, shall be considered as a single continuous check.) 

(2) In the butt: A split or a combination of two single checks, as defined in 

7.12.1, in its entirety, shall not extend upward along the pole more than 2 

feet.
Bulletin 1728F-700 

Appendix A 

Page 24 

8 DIMENSIONS

For dimensions of particular species of poles, see Tables 3 through 7. For dimensions of

stubs and anchor logs, see Tables 9, 10, and 11. 

a Length: Poles less than 50 feet in length shall not be more than 3 inches shorter 

or 6 inches longer than nominal length. Poles 50 feet or more in length shall not 

be more than 6 inches shorter or 12 inches longer than nominal length. 

Length shall be measured between the extreme ends of the pole.

b Circumference: The minimum circumferences at 6 feet from the butt and at the 

top, for each length and class of pole, are listed in Tables 3 through 7. The 

circumference at 6 feet from the butt of a pole shall not be more than 7 inches or 

20 percent larger than specified minimum, whichever is greater. The top 

dimensional requirement shall apply at a point corresponding to the minimum 

length permitted for the pole. Since poles are classed in the green condition, a 

reduction of up to 2 percent in circumference anywhere is acceptable after 

conditioning. 

c Classification: The true circumference class shall be determined as follows: 

Measure the circumference at 6 feet from the butt. This dimension shall 

determine the true class of the pole, provided that its top (measured at the 

minimum length point) is large enough. Otherwise, the circumference at the top 

shall determine the true class, provided that the circumference at 6 feet from the 

butt does not exceed the specified minimum by more than 7 inches or 20 percent, 

whichever is greater.

9 MANUFACTURING REQUIREMENTS

a Bark Removal: Outer bark shall be completely removed from all poles.

On all poles, no patch of inner bark more than 1 inch wide shall be left on the pole 

surface between the butt and 2 feet below the ground line. On poles that are to be 

given full-length treatment, no patch of inner bark larger than 1 inch wide and 6 

inches long shall be left on the pole surface between the top and 2 feet (below the 

ground line. 

NOTE: These provisions are intended to allow an occasional patch of bark and 

shall not be interpreted to allow numerous patches of bark. 

b Sawing: All poles shall be neatly sawed at the top and at the butt along a plane 

which shall not be out of square with the axis of the pole by more than 2 inches 

per foot of diameter of the sawed surface. Beveling at the edge of the sawed butt 

surface not more than 1/12 the butt diameter in width, or an equivalent area 

unsymmetrically located, is permitted. The sawed surface shall be smooth 

enough to allow the inspector's mark to be clear and legible after treatment.
Bulletin 1728F-700 

Appendix A 

Page 25 

c Trimming. Branch stubs and completely or partially overgrown knots rising more 

than 1 inch above the pole surface shall be closely trimmed. Trimming may be 

done by shaving machine or by hand. 

d Shaving: If shaving is used, the depth of cut shall not be more than necessary to 

remove inner bark and to trim smoothly and closely all branch stubs and 

overgrown knots. There shall be no abrupt change in the contour of the pole 

surface between the ground line and the aboveground sections. The lower 2 feet 

of poles may be trimmed to remove wood fibers causing butt flare, provided 

sufficient sapwood remains to obtain customer's minimum penetration 

requirement.

e Marking and Code Letters: The information in items (1) through (5) below shall 

be burn branded legibly and permanently on the pole face or included on a metal 

tag affixed thereto. The metal tag for the face of the pole shall be round, noncorrosive, tight-fitting, recessed 1/4 inch, and of such gauge to remain readable 

and last for the life of the pole. It shall be fastened with a barbed or serrated noncorrosive nail. The information in items (5) and (6) below shall be placed on the 

sawed butt surface. If desired by the producer or the purchaser, items (1), (3), and 

(4) below may also be placed on the sawed butt surface. 

(1) The treater's code or trademark* 

(2) Independent inspection agency designation or quality 

assurance mark. 

(3) Plant location and month and year of treatment.

(4) Code letters denoting the pole species, preservative, 

and required retention. 

(5) The true circumference-class numeral and numerals 

showing the length of the pole. 

(6) The charge number. (An "R" shall also be diestamped, hammer-stamped or burn branded in the 

sawed butt surface of re-treated poles.) 

NOTE: Broker or supplier’s designation may also appear on pole, but shall be 

subordinate to the treater’s code.
Bulletin 1728F-700 

Appendix A 

Page 26 

The code letters, not less than 5/8-inch high if burn branded, and not less than 1/8-

inch high if on a metal tag, designating the pole species and preservative used, 

shall be as follows:

Preservatives Code Letters

Creosote C

Pentachlorophenol-Petroleum

(Heavy Solvent) PA

DCOI DA

Ammoniacal Copper Zinc Arsenate SZ

Chromated Copper Arsenate

Type A SC

Type B SJ

Type C SK

Copper Naphthenate N

For poles, the bottom of the brand or mark shall be placed squarely on the face of 

the pole and at 10 feet + 2 inches from the butt of poles 50 feet or less in length 

and at 14 feet + 2 inches from the butt of poles 55 feet or more in length or as 

otherwise specified in the purchase order. Anchor logs shall have the brand or 

mark at the midpoint and the designation for length and diameter (as prescribed in 

Table 10) on an end. For pedestal stubs the brand shall be placed 5 feet + 2 

inches from the butt or end. 

Pole Species Code Letters

Cedar

Alaska Yellow YC

Western Red WC

Douglas-fir (coast) DF

Larch (western) WL

Pine

Jack JP

Lodgepole LP

Ponderosa WP

Red (Norway) NP

Southern Pine

SP

Loblolly

Longleaf

Shortleaf

Slash
Bulletin 1728F-700 

Appendix A 

Page 27 

Example Interpretation 

HRL Treater's Code or Trademark (e.g., Harry Roberts' Lumber 

Company)

XYZ Independent Inspection Agency Designation or Quality 

Assurance Mark.

S5-08 Plant Location (e.g., Syracuse) Month and Year of Treatment 

(for example, May 2004)

SPC-9 Species and Preservative (e.g., southern pine, creosote) 

Retention (actual retention required by this specification)

5-35 Class and length (e.g., Class 5-35 foot pole) 

f Framing

(1) All poles and stubs should be bored, gained, and cut to length prior to final 

treatment. However, should special circumstances arise where additional 

framing may be required after treatment, all cut surfaces must 

subsequently be pressure treated or treated with preservative approved for 

use by AWPA. 

(2) All framing shall be in accordance with the attached drawings or with the 

drawings which accompany the order. Anchor logs shall be bored as 

required by the order for them. 

(3) When gains are required on one side only, they shall be cut on the face of 

the pole, and the gained surfaces shall be in approximately parallel planes. 

Transmission poles (e.g., poles 50 feet or longer) may be treated undrilled. 

(4) Transmission poles may be bored before treatment for fumigation if 

designated in the purchase order. 

(5) Bolt holes in poles treated with water-borne preservatives shall be drilled 

to the maximum dimension permitted by the RUS standard drawings (i.e., 

1/16 inch over the nominal size).

(6) Anchor logs shall be bored as required by the order for them.

(7) With the approval of the borrower, anti-splitting devices may be added to 

the pole tops.

g Incising. Incising or radial drilling shall be done in line with the length of the 

pole and shall be done cleanly to prevent tearing or excessive shattering of fibers. 

(1) Distribution Poles: Cedar distribution poles to be treated by the thermal 

process shall be ground line incised in the area from 2 feet above to 4 feet 
Bulletin 1728F-700 

Appendix A 

Page 28 

below the designated ground line with a pattern and depth sufficient to 

insure uniform penetration of the total sapwood in the incised area.

(2) Transmission Poles: Cedar transmission poles to be treated by the thermal 

process shall be ground line incised in the area from 2 feet above to 4 feet 

below the designated ground line, with a pattern and depth sufficient to 

insure uniform penetration of the total sapwood in the incised area. All 

Douglas-fir (coast) transmission poles (poles 50 feet or longer) shall be 

deep-incised or radial drilled to a minimum depth of 2 1/2 inches in the 

area from 2 feet above to 4 feet below the designated ground line. Deep 

incising or radial drilling shall be, as minimum spacing, applied in a 3x6-

inch vertical diamond pattern. Radial drilled holes shall not exceed 5/16 

inch in diameter.

(3) Pedestal Stubs: The lengthwise surface of sawn Douglas-fir stubs shall be 

incised to a depth of approximately 0.4 inches in a pattern that insures 

uniform preservative penetration. Cedar and western larch stubs that are 

to be treated by the thermal process shall be incised in the groundline 

section in accordance with AWPA Standards U1 and T1. 

(4) Should experience indicate the need for it, the purchaser may specify 

additional pole incising or radial drilling requirements, including the 

following:

(a) Through boring may be used as an alternative to deep incising or 

radial drilling.

DEEPER INCISING OR BORING SUGGESTIONS

Length of Pole DEEP RADIAL 

DRILLING 

PENETRATION

RADIAL DRILLING 

OR INCISING

50 through 65 feet 4.0 inches 2.5 inches

70 through 85 feet 4.5 inches 2.5 inches

90 feet or longer 5.0 inches 2.5 inches

10 STORAGE AND HANDLING

a Storage. When it is necessary to hold poles in storage, they shall be stacked on 

treated or other nondecaying skids of such dimensions and so arranged as to 

support the poles without producing noticeable distortion of any of them. The 

height of the poles shall be limited to avoid damage to poles on the bottom layers. 

Poles shall be piled and supported in such a manner that all poles are, at any point, 

at least 1 foot above the general ground level and any vegetation growing. No 

decayed wood shall be permitted to remain underneath or adjacent to stored poles. 

With the exception of short-term piling associated with normal manufacturing 

procedures, unseasoned poles shall not be dead piled at any time. 

b Handling: Poles shall not be dragged along the ground. Cant hooks, pole tongs, 

or other pointed tools shall not be applied to the ground line section of any pole. 
Bulletin 1728F-700 

Appendix A 

Page 29 

c Mechanical Damage: Poles are not acceptable if they contain indentations 

attributed to loading or handling slings that are 1/4 inch or more deep over 20 

percent or more of the pole circumference, or more than 1/2 inch deep at any 

point. Other indentations or abrasions, for example, forklift damage, kiln sticker 

damage, chain-saw damage, etc., shall not be more than 1/10 the pole diameter at 

the point of damage up to a cumulative cross-sectional maximum of 1 inch. Such 

damage is permitted in an oversized section, where the excess of wood shall be 

taken into consideration in evaluating the effects of the damage. In any case, the 

remaining circumference shall meet or exceed the specification minimum.

TABLE 2 GENERAL REQUIREMENTS

Treatment Group Genus Species Fiber Stress

(psi)

Treatment Group A (air seasoned)

Cedar, western red Thuja plicata 6000

Cedar, Alaska yellow Chamaecyparis

Nootkatensis 7400 

Treatment Group B (Boulton drying)

Douglas-fir, (coast) Pseudotsuga

Menziesii 8000 

Larch, western Larix 

occidentalis 8400 

Treatment Group C (steam conditioned)

Pine, southern

8000 

Loblolly Pinus taeda

Longleaf Pinus palustris

Shortleaf Pinus echinata

Slash Pinus elliottii

Treatment Group D (kiln drying)

Cedar, western red Thuja plicata 6000

Douglas-fir, (coast) Pseudotsuga

menziesii 8000 

Larch, western Larix 

occidentalis 8400 

Pine, jack Pinus banksiana 6600

Pine, lodgepole Pinus contorta 6600

Pine, ponderosa Pinus ponderosa 6000

Pine, red Pinus resinosa 6600

Pine, southern

Loblolly Pinus taeda

Longleaf Pinus palustris 8000 

Shortleaf Pinus echinata

Slash Pinus elliottii
Bulletin 1728F-700 

Appendix A 

Page 30 

FIGURE 1 MEASUREMENTS OF SWEEP AND SHORT CROOK IN POLES
Bulletin 1728F-700 

Appendix A 

Page 31

TABLE 3: DIMENSIONS OF WESTERN RED CEDAR1 AND PONDEROSA PINE 

POLES

Class H-6 H-5 H-4 H-3 H-2 H-1 1 2 3 4 5 6 7 9 10

Minimum 

Circumference

at top (in.)

39 37 35 33 31 29 27 25 23 21 19 17 15 15 12

Length

of

pole

(ft.)

Groundline2

distance

from butt

(ft.)

Minimum circumference at 6 ft from butt

(in.)

20 4 - - - - - - 33.5 31.5 29.5 27.0 25.0 23.0 21.5 18.5 15.0

25 5 - - - - - - 37.0 34.5 32.5 30.0 28.0 25.5 24.0 20.5 16.5

30 5.5 - - - - - - 40.0 37.5 35.0 32.5 30.0 28.0 26.0 22.0 -

35 6 - - - - 48.0 45.5 42.5 40.0 37.5 34.5 32.0 30.0 27.5 - -

40 6 - - 56.5 53.5 51.0 48.0 45.0 42.5 39.5 36.5 34.0 31.5 - - -

45 6.5 64.5 62.0 59.0 56.0 53.5 50.5 47.5 44.5 41.5 38.5 36.0 33.0 - - -

50 7 67.0 64.5 61.5 58.5 55.5 52.5 49.5 46.5 43.5 40.0 37.5 - - - -

55 7.5 70.0 67.0 64.0 61.0 57.5 54.5 51.5 48.5 45.0 42.0 - - - - -

60 8 72.0 69.0 66.0 63.0 59.5 56.5 53.5 50.0 46.5 43.5 - - - - -

65 8.5 74.5 71.5 68.0 65.0 61.5 58.5 55.0 51.5 48.0 45.0 - - - - -

70 9 76.5 73.5 70.0 67.0 63.5 60.0 56.5 53.0 49.5 46.0 - - - - -

75 9.5 78.5 75.5 72.0 68.5 65.0 61.5 58.0 54.5 51.0 - - - - - -

80 10 80.5 77.0 74.0 70.5 67.0 63.0 59.5 56.0 52.0 - - - - - -

85 10.5 82.5 79.0 75.5 72.0 68.5 64.5 61.0 57.0 53.5 - - - - - -

90 11 84.5 81.0 77.0 73.5 70.0 66.0 62.5 58.5 54.5 - - - - - -

95 11 86.0 82.5 79.0 75.0 71.5 67.5 63.5 59.5 - - - - - - -

100 11 87.5 84.0 80.5 76.5 72.5 69.0 65.0 61.0 - - - - - - -

105 12 89.5 85.5 82.0 78.0 74.0 70.0 66.0 62.0 - - - - - - -

110 12 91.0 87.0 83.5 79.5 75.5 71.5 67.5 63.0 - - - - - - -

115 12 92.5 88.5 84.5 80.5 76.5 72.5 68.5 64.0 - - - - - - -

120 12 94.0 90.0 86.0 82.0 78.0 74.0 69.5 65.0 - - - - - - -

125 12 95.5 91.5 87.5 83.0 79.0 75.0 70.5 66.0 - - - - - - -

NOTES: 

1. Dimensions of H Classes are applicable for western red cedar only.

2. The figures in this column are intended for use only when a definition of groundline is necessary in order to apply 

requirements relating to scars, straightness, etc

3. Classes and lengths for which circumferences at 6 feet from the butt are listed in bold face type are the preferred standard sizes. Those shown in light type are included for engineering purposes only.
Bulletin 1728F-700 

Appendix A 

Page 32

TABLE 4: DIMENSIONS OF JACK PINE, LODGEPOLE PINE, RED PINE, 

REDWOOD, SITKA SPRUCE, WESTERN FIR, AND WHITE SPRUCE POLES

Class 1 2 3 4 5 6 7 9 10

Minimum 

circumference

at top

(in.)

27 25 23 21 19 17 15 15 12

Length

of

Pole

(ft.) 

Groundline (1) 

Distance

From butt

(ft.) 

Minimum circumference at 6 ft. from butt

(in.)

20 4 32.5 30.5 28.5 26.5 24.5 22.5 21.0 18.0 14.5

25 5 36.0 33.5 31.0 29.0 27.0 25.0 23.0 20.0 15.5

30 5.5 39.0 36.5 34.0 31.5 29.0 27.0 25.0 21.0 -

35 6 41.5 38.5 36.0 33.5 31.0 28.5 26.5 - -

40 6 44.0 41.0 38.0 35.5 33.0 30.5 - - -

45 6.5 46.0 43.0 40.0 37.0 34.5 32.0 - - -

50 7 48.0 45.0 42.0 39.0 36.0 - - - -

55 7.5 49.5 46.5 43.5 40.5 - - - - -

60 8. 51.5 48.0 45.0 42.0 - - - - -

65 8.5 53.0 49.5 46.0 43.0 - - - - -

70 9 54.5 51.0 47.5 44.5 - - - - -

75 9.5 56.0 52.5 49.0 - - - - - -

80 10 57.5 54.0 50.5 - - - - - -

85 10.5 58.5 55.0 51.5 - - - - - -

90 11 60.0 56.5 52.5 - - - - - -

95 11 61.5 57.5 - - - - - - -

100 11 62.5 58.5 - - - - - - -

105 12 63.5 60.0 - - - - - - -

110 12 65.0 61.0 - - - - - - -

115 12 66.0 62.0 - - - - - - -

120 12 67.0 63.0 - - - - - - -

125 12 68.0 64.0 - - - - - - -

NOTE - Classes and lengths for which circumferences at 6 feet from the butt are listed in 

boldface type are the preferred standard sizes. Those shown in light type are included for 

engineering purposes only.

1)The figures in this column are intended for use only when a definition of groundline is 

necessary in order to apply requirements relating to scars, straightness, etc.
Bulletin 1728F-700 

Appendix A 

Page 33

TABLE 5: DIMENSIONS OF ALASKA YELLOW CEDAR AND WEST HEMLOCK POLES

Class H-6 H-5 H-4 H-3 H-2 H-1 1 2 3 4 5 6 7 9 10

Minimum 

Circumference

at top (in.)

39 37 35 33 31 29 27 25 23 21 19 17 15 15 12

Length

of

pole

(ft.)

Groundline1)

distance

from butt

Minimum circumference at 6 ft from butt

(in.)

20 4 - - - - - - 31.5 29.5 27.5 25.5 23.5 22.0 20.0 17.5 14.0

25 5 - - - - - - 34.5 32.5 30.0 28.0 26.0 24.0 22.0 19.5 15.0

30 5.5 - - - - - - 37.5 35.0 32.5 30.0 28.0 26.0 24.0 20.5 -

35 6 - - - - 45.0 42.5 40.0 37.5 35.0 32.0 30.0 27.5 25.5 - -

40 6 - - 52.5 50.0 47.5 45.0 42.0 39.5 37.0 34.0 31.5 29.0 25.5 - -

45 6.5 60.0 57.5 55.0 52.5 49.5 47.0 44.0 41.5 38.5 36.0 33.0 30.5 - - -

50 7 62.5 60.0 57.0 54.5 51.5 49.0 46.0 43.0 40.0 37.5 34.5 - - - -

55 7.5 65.0 62.0 59.5 56.5 53.5 50.5 47.5 44.5 41.5 39.0 - - - - -

60 8 67.0 64.0 61.5 58.5 55.5 52.5 49.5 46.0 43.0 40.0 - - - - -

65 8.5 69.0 66.0 63.0 60.0 57.5 54.0 51.0 47.5 44.5 41.5 - - - - -

70 9 71.0 68.0 65.0 62.0 58.5 55.5 52.5 49.0 46.0 42.5 - - - - -

75 9.5 73.0 69.5 66.5 63.5 60.0 57.0 53.5 50.5 47.0 - - - - - -

80 10 74.5 71.5 68.0 65.0 61.5 58.5 55.0 51.5 48.5 - - - - - -

85 10.5 76.0 73.0 70.0 66.5 63.0 59.5 56.0 53.0 49.5 - - - - - -

90 11 78.0 74.5 71.0 68.0 64.5 61.0 57.5 54.0 50.5 - - - - - -

95 11 79.5 76.0 72.5 69.5 66.0 62.0 58.5 55.0 - - - - - - -

100 11 81.0 77.5 74.0 70.5 67.0 63.5 60.0 56.0 - - - - - - -

105 12 82.5 79.0 75.5 72.0 68.5 64.5 61.0 57.0 - - - - - - -

110 12 84.0 80.5 77.0 73.0 69.5 65.5 62.0 58.0 - - - - - - -

115 12 85.5 81.5 78.0 74.5 70.5 67.0 63.0 59.0 - - - - - - -

120 12 86.5 83.0 79.5 75.5 72.0 68.0 64.0 60.0 - - - - - - -

125 12 88.0 84.5 80.5 76.5 73.0 69.0 65.0 61.0 - - - - - - -

NOTE – Classes and lengths for which circumferences at 6 feet from the butt are listed in bold face type are the preferred 

standard sizes. Those shown in light type are included for engineering purposes only.

1)The figures in this column are intended for use only when a definition of groundline is necessary in order to apply requirements 

 
Bulletin 1728F-700 

Appendix A 

Page 34

TABLE 6: DIMENSIONS OF DOUGLAS FIR (BOTH TYPES) AND SOUTHERN YELLOW PINE POLES

Class H-6 H-5 H-4 H-3 H-2 H-1 1 2 3 4 5 6 7 9 10

Minimum 

Circumference

 

39 37 35 33 31 29 27 25 23 21 19 17 15 15 12

Length

of

pole

(ft.) 

Groundline1)

distance

from butt

(ft.)

Minimum circumference at 6 ft from butt

(in.)

20 4 - - - - - - 31.0 29.0 27.0 25.0 23.0 21.0 19.5 17.5 14.0

25 5 - - - - - - 33.5 31.5 29.5 27.5 25.5 23.0 21.5 19.5 15.0

30 5.5 - - - - - - 36.5 34.0 32.0 29.5 27.5 25.0 23.5 20.5 -

35 6 - - - - 43.5 41.5 39.0 36.5 34.0 31.5 29.0 27.0 25.0 - -

40 6 - - 51.0 48.5 46.0 43.5 41.0 38.5 36.0 33.5 31.0 28.5 - - -

45 6.5 58.5 56.0 53.5 51.0 48.5 45.5 43.0 40.5 37.5 35.0 32.5 30.0 - - -

50 7 61.0 58.5 55.5 53.0 50.5 47.5 45.0 42.0 39.0 36.5 34.0 - - - -

55 7.5 63.5 60.5 58.0 55.0 52.0 49.5 46.5 43.5 40.5 38.0 - - - - -

60 8 65.5 62.5 59.5 57.0 54.0 51.0 48.0 45.0 42.0 39.0 - - - - -

65 8.5 67.5 64.5 61.5 58.5 55.5 52.5 49.5 46.5 43.5 40.5 - - - - -

70 9 69.0 66.5 63.5 60.5 57.0 54.0 51.0 48.0 45.0 41.5 - - - - -

75 9.5 71.0 68.0 65.0 62.0 59.0 55.5 52.5 49.0 46.0 - - - - - -

80 10 72.5 69.5 66.5 63.5 60.0 57.0 54.0 50.5 47.0 - - - - - -

85 10.5 74.5 71.5 68.0 65.0 61.5 58.5 55.0 51.5 48.0 - - - - - -

90 11 76.0 73.0 69.5 66.5 63.0 59.5 56.0 53.0 49.0 - - - - - -

95 11 77.5 74.5 71.0 67.5 64.5 61.0 57.0 54.0 - - - - - - -

100 11 79.0 76.0 72.5 69.0 65.5 62.0 58.5 55.0 - - - - - - -

105 12 80.5 77.0 74.0 70.5 67.0 63.0 59.5 56.0 - - - - - - -

110 12 82.0 78.5 75.0 71.5 68.0 64.5 60.5 57.0 - - - - - - -

115 12 83.5 80.0 76.5 72.5 69.0 65.5 61.5 58.0 - - - - - - -

120 12 85.0 81.0 77.5 74.0 70.0 66.5 62.5 59.0 - - - - - - -

125 12 86.0 82.5 78.5 75.0 71.0 67.5 63.5 59.5 - - - - - - -

NOTE – Classes and lengths for which circumferences at 6 feet from the butt are listed in bold face type are the preferred standard sizes. 

Those shown in light type are included for engineering purposes only.

1) The figures in this column are intended for use only when a definition of groundline is necessary in order to apply requirements relating to 

scars, straightness, etc.
Bulletin 1728F-700 

Appendix A 

Page 35

TABLE 7: DIMENSIONS OF WESTERN LARCH POLES

Class H-6 H-5 H-4 H-3 H-2 H-1 1 2 3 4 5 6 7 9 10

Minimum Circumference

at top (in.) 39 37 35 33 31 29 27 25 23 21 19 17 15 15 12

Length

of

pole

(ft.) 

Groundline1)

distance

from butt

(ft.)

Minimum circumference at 6 ft from butt

(in.)

20 4 - - - - - - 30.0 28.5 26.5 24.5 22.5 21.0 19.0 17.0 13.5

25 5 - - - - - - 33.0 31.0 29.0 26.5 24.5 23.0 21.0 18.5 14.5

30 5.5 - - - - - - 35.5 33.5 31.0 29.0 26.5 24.5 23.0 19.5 -

35 6 - - - - 43.0 40.5 38.0 35.5 33.0 31.0 28.5 26.5 24.5 - -

40 6 - - 50.5 48.0 45.5 43.0 40.0 37.5 35.0 32.5 30.0 28.0 - - -

45 6.5 57.5 55.0 52.5 50.0 47.5 45.0 42.0 39.5 37.0 34.0 31.5 29.0 - - -

50 7 60.0 57.5 55.0 52.0 49.5 47.0 44.0 41.0 38.5 35.5 33.0 - - - -

55 7.5 62.0 59.5 57.0 54.0 51.5 48.5 45.5 42.5 40.0 37.0 - - - - -

60 8 64.5 61.5 59.0 56.0 53.0 50.0 47.0 44.0 41.0 38.5 - - - - -

65 8.5 66.0 63.5 60.5 57.5 55.0 52.0 48.5 46.0 42.5 39.5 - - - - -

70 9 68.0 65.0 62.5 59.5 56.5 53.5 50.0 47.0 44.0 41.0 - - - - -

75 9.5 70.0 67.0 64.0 61.0 58.0 54.5 51.5 48.0 45.0 - - - - - -

80 10 71.5 68.5 65.5 62.5 59.0 56.0 52.5 49.5 46.0 - - - - - -

85 10.5 73.0 70.0 67.0 64.0 60.5 57.5 54.0 50.5 47.0 - - - - - -

90 11 74.5 71.5 68.5 65.0 62.0 58.5 55.0 51.5 48.5 - - - - - -

95 11 76.5 73.0 70.0 66.5 63.0 60.0 56.5 53.0 - - - - - - -

100 11 78.0 74.5 71.0 68.0 64.5 61.0 57.5 54.0 - - - - - - -

105 12 79.0 76.0 72.5 69.0 65.5 62.0 58.5 55.0 - - - - - - -

110 12 80.5 77.0 73.5 70.0 66.5 63.0 59.5 56.0 - - - - - - -

115 12 82.0 78.5 75.0 71.5 68.0 64.0 60.5 57.0 - - - - - - -

120 12 83.0 79.5 76.0 72.5 69.0 65.0 61.5 58.0 - - - - - - -

125 12 84.5 81.0 77.5 73.5 70.0 66.0 62.5 58.5 - - - - - - -

NOTE – Classes and lengths for which circumferences at 6 feet from the butt are listed in bold face type are the preferred standard sizes. 

Those shown in light type are included for engineering purposes only.

1)The figures in this column are intended for use only when a definition of groundline is necessary in order to apply requirements relating to 

scars, straightness, etc.
Bulletin 1728F-700 

Appendix A 

Page 36

TABLE 8

TREATMENT AND RESULTS OF TREATMENT

Preservative Treatments

Minimum RetentionsH

(Pounds per Cubic Foot)

Assay 

Zone 

Penetration

Species Area 

UseA

CreosoteB PentaC

DCOI-A 

WaterborneD CuNE

Inches

from 

Surface

Inches 

from 

Surface

Percent of 

Sapwood

PRESSURE PROCESS - FULL LENGTH TREATMENT

Southern Pine 1 9.0 0.45 0.15 0.60 0.130 0.50 to 2.0 3.50 or 90

Southern Pine 2 7.5 0.38 0.13 --- 0.080 0.50 to 2.0 3.00 or 90

Douglas-firG,I,M 1 12.0 0.60 0.20 0.60 0.150 0.25 to 1.0 0.75 and 85

Douglas-firG,I,M 2 9.0 0.45 0.15 --- 0.095 0.25 to 1.0 0.75 and 85

Ponderosa PineG 1 9.0 0.45 0.60 0.130 0.50 to 2.0 3.50 or 90

Ponderosa PineG 2 7.5 0.38 --- 0.080 0.50 to 2.0 3.00J or 90

Red Pine

1 12.0 0.60 0.20 0.60 0.150 

0.10 to 

1.60 

3.00 or 90 

Red Pine

2 10.0 0.50 0.17 0.60 0.095 

0.10 to 

1.60

2.50 or 85 

Jack Pine

2 12.0 0.60 0.60 0.095 

0.10 to 

0.75

1.50 or 85K 

Western Larch

2 18.0 0.80 0.60 --- 0.10 to 

0.60

0.50 and 100L 

Western Red Cedar 2 20.0 1.0 0.33 0.60 0.120 0.0 to 0.50 0.50 or 100

Lodgepole Pine 2 12.0 0.60 0.60 0.095 0.10 to 

0.75

0.75 and 85 

THERMAL PROCESS - FULL LENGTH TREATMENT

Western Larch 2 20.0 0.80 -- --- --- 0.0 to 0.50 0.50 and 85

Western Red Cedar 2 20.0 1.0 -- --- 0.150 0.0 to 0.50 0.50 or 100

Alaska Yellow Cedar 2 20.0 1.0 -- --- 0.150 0.0 to 0.50 0.50 or 100

THERMAL PROCESS- BUTT TREATMENT

Alaska Yellow Cedar 2F 20.0 1.0 -- --- --- 0.0 to 0.50 0.50 or 100

Western Red Cedar 2F 20.0 1.0 -- --- --- 0.0 to 0.50 0.50 or 100
Bulletin 1728F-700 

Appendix A 

Page 37

Notes:

A. Use Area 1- South of the 40th parallel of north latitude and east of the 95th meridian of west longitude, including the 

Gulf Coast of Texas. 

Use Area 2- Elsewhere than as defined for Use Area 1.

B. Test By Toluene Extraction

C. This retention for lime ignition or x-ray spectroscopy method. Copper pyridine method, which equals 90% of lime 

ignition results, is required when poles may have been in contact with salt water, and for all species native to the 

Pacific Region, unless it specifically states on the raw material invoice that the material has not been in contact with 

salt water or shown by analysis that there are no additional chlorides present in the wood before treating.

D. Pressure Treatment Only. 

E. For all poles within 50 miles of coastal waters, minimum retentions are 0.130 PCF for Southern Pine and 0.150 PCF

for Douglas-fir.

F. Allowed for use in low to moderate decay zones. 

G. Species native to the Pacific Coast region as per Agriculture Handbook 541 (1979).

H. A reduction of 10 percent from the values shown above in any of the test zones is acceptable at destination within 6 

months from the date of delivery.

I. Coast type

J. 3.5 inches of penetration for waterborne preservatives.

K. 3.0 inches or 90% sapwood penetration for waterborne preservatives.

L. Up to a maximum of 0.75 inches.

M. A second (inner) assay zone is required for Douglas-fir transmission poles. The inner assay zone is 2.0” – 2.5” from 

the surface. The preservative retention in this inner zone must be at least 50% of the required retention for the standard 

assay zone. 
Bulletin 1728F-700 

Appendix A 

Page 38

TABLE 9 

DIMENSION OF ELECTRIC STUBS

Lodge pole Pine, Red Pine, Jack Pine

Length of Stub

(Feet)

Minimum Top Circumference * (Inches)

Class of Stub

1 2 3 4 5 6 7

10.5 37.0 34.5 32.0 29.5 27.0 25.0 22.5

11 39.5 37.5 34.0 31.5 29.5 26.5 24.0

11.5 42.0 39.0 36.0 33.5 31.0 28.5 26.0

12.5 43.5 40.5 37.5 34.5 32.0 29.5 27.0

13 45.5 42.5 39.5 36.5 33.5 31.0 28.5

*Maximum circumference not more than these figures plus 4 inches

Southern Pine, Douglas fir (coast) and Western Larch

Length of Stub

(Feet)

Minimum Top Circumference * (Inches)

Class of Stub

1 2 3 4 5 6 7

10.5 36.0 33.5 31.0 28.5 26.0 24.5 22.5

11 38.0 35.5 33.0 30.0 28.0 25.5 23.5

11.5 40.0 37.5 35.0 32.0 29.5 27.0 25.0

12.5 42.0 39.5 36.5 34.0 31.0 28.5 26.5

13 43.5 40.5 37.5 35.0 32.0 29.5 27.0

*Maximum circumference not more than these figures plus 4 inches

TABLE 10 

DIMENSIONS OF ANCHOR LOGS

Southern Pine, Lodgepole Pine, Red Pine,

Jack Pine, Douglas fir and Western Larch

Log Designation

F2-1 F2-2 F2-3 F2-4 TA-2L TA-4L

Log Length 

(Feet) 4.0 4.5 5.0 5.0 5.0 8.0 

Minimum 

Diameter 

(Inches)

8.0 9.0 10.0 12.0 8.0 8.0 
Bulletin 1728F-700 

Appendix A 

Page 39

TABLE 11 

TELEPHONE STUBS FOR MOUNTING BURIED PLANT TERMINAL HOUSINGS

Telephone Round Type Stubs

Dimensions: Top Diameter shall be 4 1/2” minimum. Butt Diameter shall be 5” minimum.

Bid Limit

Designation Length

BA-2 6’-6” 

BA-3 8’-0” 

BA-4 10’-0” 

BA-5 13’-6” 

Telephone Sawn Pedestal Stubs

Dimensions: Finished Minimum Cross-section of 3 1/2” x 4 1/2”. 

Bid Limit

Designation Length

BA-21 6’-6” 

BA-22 8’-0” 

BA-23 10’-0” 
Bulletin 1728F-700 

Appendix A 

Page 40

FIGURE 2 ELECTRIC POLE FRAMING DRAWINGS

JAN. 2011
Bulletin 1728F-700 

Appendix A 

Page 41

FIGURE 3 TELECOMMUNICATIONS POLE FRAMING DRAWING

JAN. 2011
Bulletin 1728F-700 

Appendix A 

Page 42

METRIC CONVERSION FACTORS

TO CONVERT FROM TO MULTIPLY BY

Foot (ft) meter (m) 0.3048 

Inch (in) centimeter 2.54 

Pound per cubic foot (pcf) 

(lb/ft3) kilogram per cubic meter (kg/m3) 16.01846 

Pound per square inch (psi) 

(lb/in2)

kilogram per square meter 

(kg/m2)

703.0696 

Degrees Fahrenheit (°F) degrees Celsius (°C) 5/9(°F-32)