Truck Trailers 1998

Summary Issued 

March 2000

M336L(98)-13

(Formerly Series No. M37L) Current 

Industrial

Reports

Information about the scope of the survey, Summary of Findings

methodology, explanation of terms and historical

notes for this survey may be found in the The value of factory shipments of complete 

introduction of the 1997 Manufacturing Profiles, truck trailers was $5,430.4 million in 1998, 

issued August 1999. an increase of 24 percent from shipments of 

$4,367.3 million in 1997. Quantity of complete

Current data are released electronically on Internet truck trailer shipments for 1998 was 277,419 

for all individual surveys as they become avail- units, an increase of 20 percent from shipments

able. Use: http://www.census.gov/econ/www/ of 231,555 in 1997.

manumenu.html. Individual reports can be

accessed by choosing "Current Industrial Reports Complete trailer vans shipped in 1998 increased 

(CIR's)," clicking on "Report Number Index;" from 23 percent in quantitity and 33 percent in value 

the "Industrial Products by Numeric Index," from the 1997 levels.

choose the survey of interest. Follow the menu

to view the PDF file or to download the work- The quantity of tank-type trailers shipped in 

sheet file (WK format) to your personal computer. 1998 increased 25 percent and their value 

increased 18 percent from the 1997 levels. 

These data are also available through the U.S.

Department of Commerce and STAT-USA NOTE: Data are now published on the new North

Electronic Bulletin Board by subscription. To American Industry Classification System (NAICS)

access, dial 202-482-3870 and follow the basis and therefore are not always comparable

prompts to register. Also, you may call to the old Standard Industrial Classification

202-482-1986 or 1-800-STAT-USA, for (SIC) code. For further information on NAICS,

further information. The Internet address is: see www.census.gov/epcd/www/naics.html.

www.stat-usa.gov/.

Address inquiries concerning these data to Investment Goods Industries Branch, Manufacturing and Construction Division (MCD), Washington, DC 

20233-6900, or call Chris Savage, 301-457-1307.

For mail or fax copies of this publication, please contact the Information Services Center, MCD, Washington, DC 20233-6900, or call 301-457-4673.

U S C E N S U S B U R E A U U.S. Department of Commerce

 Economics and Statistics Administration

Helping You Make Informed Decisions U.S. Census Bureau
Table 1. Quantity of Shipments of Truck Trailers: 1988 to 1998

[Number of units]

Product

code Product description 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988

336212 Complete trailers ..........................277,419 231,555 202,912 279,144 234,287 185,741 165,268 122,361 149,117 181,478 186,483

 Vans .........................................199,690 162,557 146,350 215,420 174,237 141,764 127,205 84,626 103,894 130,163 131,991

 Tank ......................................... 6,238 4,982 5,386 5,492 4,758 3,877 3,750 4,113 4,444 4,789 5,075

 Platform..................................... 27,843 25,606 18,193 22,797 21,459 16,102 13,432 11,585 13,479 18,411 17,648

 All other complete trailers .........43,648 38,410 32,983 35,435 33,833 23,998 20,881 22,037 27,300 28,115 31,769

Detachable trailer bodies 1/ .......... 6,208 6,026 6,789 7,757 2,598 12,207 (D) (D) (D) (D) 5,223

Detachable trailer chassis 1/ .........15,859 12,191 27,602 46,979 57,570 25,483 23,408 24,491 17,214 24,779 37,729

Dollies and converter gear ........... 2,966 2,480 2,739 4,601 2,986 2,486 3,899 3,097 2,272 2,668 2,917

 D Withheld to avoid disclosing data for individual companies. 

 1/Data for "detachable trailer bodies" and "detachable trailer chassis" were combined for 1989 through 1992 to avoid disclosing

data for individual companies.
Continued 1

Table 2. Quantity of Shipments of Truck Trailers by Month and Type of Trailer: 1998

[Number of units]

 Product No. of

code Product description cos. Total Jan. Feb. Mar. Apr. May Jun.

Complete trailers and chassis (except

 detachables)......................................................166 277,419 21,052 22,076 23,655 23,247 23,170 23,904

 Vans................................................................(NA) 199,690 14,802 15,600 17,010 16,499 16,606 17,164

 Closed top:

 Insulated (refrigerated)..............................(NA) 48,398 3,632 3,700 4,187 4,182 4,140 3,952

3362121001 Steel /1..................................................... 1 (D) (D) (D) (D) (D) (D) (D)

3362121015 Alulminum /1..............................................9 48,398 r/ 3,632 r/ 3,700 r/ 4,187 r/ 4,182 r/ 4,140 r/ 3,952

3362121061 FRP........................................................... - - - - - - - - 

 Semi-insulated (non-refrigerated).............. (NA) 1,511 91 79 194 170 129 63

3362121003 Steel /1..................................................... 2 (D) (D) (D) (D) (D) (D) (D)

3362121019 Aluminum............................................... 6 1,511 r/ 91 r/ 79 r/ 194 r/ 170 r/ 129 r/ 63

3362121063 FRP /2...........................................................- - - - - - - -

 Drop frame type (12 inches)....................... (NA) 2,069 152 172 r/ 190 r/ 161 r/ 183 r/ 211

3362121005 Steel /1.......................................................... 1 (D) (D) (D) (D) (D) (D) (D)

3362121017 Aluminum............................................ 6 2,069 r/ 152 r/ 172 r/ 190 r/ 161 r/ 183 r/ 211

3362121065 FRP /2....................................................... 1 (D) (D) (D) (D) (D) (D) (D)

 Livestock...................................................(NA) 6,964 602 435 620 456 586 616

3362121007 Steel /3..................................................... 2 (D) (D) (D) (D) (D) (D) (D)

3362121021 Aluminum /3............................................9 6,964 r/ 602 r/ 435 r/ 620 r/ 456 r/ 586 r/ 616

 All other closed-top dry freight

 vans, including curtain............................. (NA) 127,007 9,276 10,021 10,790 10,481 10,462 11,125

 Steel.......................................................... (NA) 2,040 160 234 192 155 158 157

3362121009 Less than 30 feet long /4................... 2 (D) (D) (D) (D) (D) (D) (D)

3362120111 30 feet or greater /4............................ 5 2,040 r/ 160 r/ 234 r/ 192 r/ 155 r/ 158 r/ 157

 Aluminum................................................. (NA) 117,705 8,489 9,086 9,934 9,614 9,632 10,354

3362121023 Less than 30 feet long........................ 12 5,740 r/ 440 r/ 468 r/ 488 r/ 499 r/ 405 r/ 424

3362121025 30 feet or greater.................................15 111,965 r/ 8,049 r/ 8,618 r/ 9,446 r/ 9,115 r/ 9,227 r/ 9,930

 FRP............................................................ (NA) 7,262 627 701 664 712 672 614

3362121067 Less than 30 feet long /2................... 3 (D) (D) (D) (D) (D) (D) (D)

3362121069 30 feet or greater /2............................ 8 7,262 r/ 627 r/ 701 r/ 664 r/ 712 r/ 672 r/ 614

 Open tops, including low side

 grain, fruit, etc............................................(NA) 13,741 1,049 1,193 1,029 1,049 1,106 1,197

3362121013 Steel /5..................................................... 4 (D) (D) (D) (D) (D) (D) (D)

3362121027 Aluminum /5............................................ 18 (D) (D) (D) (D) (D) (D) (D)

3362121071 FRP /5...................................................... 2 13,741 r/ 1,049 r/ 1,193 r/ 1,029 r/ 1,049 r/ 1,106 r/ 1,197

 Tank.............................................................. (NA) 6,238 525 540 564 556 521 541

3362121029 For flammable liquids (except 

 casing head transport, including 

 aircraft refuelers), all materials.................... 14 1,647 133 124 134 138 131 144

3362121033 Coated for chemicals and acids, 

 all materials /6............................................11 3,173 261 306 301 264 276 288

3362121031 For asphalt, all materials /6.......................... 9 (D) (D) (D) (D) (D) (D) (D)

3362121035 All other, including noncoated 

 for chemicals and acids, high 

 pressure, food and milk, sanitary, 

 cryogenics, all materials............................16 1,418 r/ 131 r/ 110 r/ 129 r/ 154 r/ 114 r/ 109

3362121041 Platform........................................................ 32 27,843 r/ 2,212 r/ 2,242 r/ 2,188 r/ 2,401 r/ 2,306 r/ 2,444

All other trailers..................................................(NA) 43,648 3,513 3,694 3,893 3,791 3,737 3,755

3362121037 Bulk commodity and dry materials,

 including pneumatic and mechanical

 discharge, both tank and hopper

 types (except van).......................................... 15 2,694 r/ 222 r/ 226 r/ 227 r/ 227 r/ 224 r/ 224

3362121039 Pole, logging and pipe.......................................13 1,735 r/ 145 r/ 146 r/ 149 r/ 142 r/ 150 r/ 147

 Low-bed heavy haulers, over 10-ton

 capacity, excluding tilt-bed

 trailers.......................................................... (NA) 13,980 1,161 1,187 1,279 1,229 1,174 1,158

3362121043 Under 40-ton capacity......................................36 9,309 r/ 797 r/ 806 r/ 910 838 760 r/ 754

3362121045 40-ton capacity and over.................................... 30 4,671 r/ 364 r/ 381 r/ 369 r/ 391 r/ 414 r/ 404

 Dump trailers and dump chassis,

 highway type (rear, side, and 

 bottom dump, including 

 nonpneumatic hoppers).................................. (NA) 14,483 1,088 1,212 1,339 1,243 1,300 1,334

3362121047 For materials.................................................40 10,924 r/ 831 900 r/ 966 r/ 934 r/ 973 r/ 983

3362121049 For other, including demolition

 and excavation.......................................... 24 3,559 r/ 257 r/ 312 r/ 373 309 r/ 327 r/ 351

3362121051 Automobile transport trailers /7.......................... 7 (D) (D) (D) (D) (D) (D) (D)

3362121055 All other trailers and chassis 

 (except detachable trailers and 

 detachable trailer chassis) /7............................ 33 10,756 r/ 897 r/ 923 r/ 899 r/ 950 r/ 889 r/ 892

3362121057 Detachable trailer bodies, 

 containers, sold separately..............................6 6,208 r/ 515 r/ 516 r/ 497 r/ 523 r/ 515 r/ 509

3362121059 Detachable trailer chassis and 

 running gear, sold separately.........................14 15,859 r/ 894 r/ 1,140 r/ 1,484 r/ 1,301 r/ 1,140 r/ 1,450

3362121053 Dollies and converter gear.............................. 21 2,966 r/ 219 r/ 251 r/ 223 r/ 395 r/ 287 r/ 274
Continued 2

Table 2. Quantity of Shipments of Truck Trailers by Month and Type of Trailer: 1998

[Number of units]

Product No. of

code Product description cos. Jul. Aug. Sep. Oct. Nov. Dec.

Complete trailers and chassis (except

 detachables)......................................................166 21,429 23,784 24,354 24,412 23,271 23,065

 Vans................................................................(NA) 14,786 17,305 17,958 18,024 17,109 16,827

 Closed top:

 Insulated (refrigerated)..............................(NA) 3,690 4,357 4,234 4,263 4,027 4,034

3362121001 Steel /1..................................................... 1 (D) (D) (D) (D) (D) (D)

3362121015 Alulminum /1..............................................9 r/ 3,690 r/ 4,357 r/ 4,234 r/ 4,263 r/ 4,027 r/ 4,034

3362121061 FRP........................................................... - - - - - - - 

 Semi-insulated (non-refrigerated)..............(NA) 74 198 149 110 111 143

3362121003 Steel /1..................................................... 2 (D) (D) (D) (D) (D) (D)

3362121019 Aluminum............................................... 6 r/ 74 r/ 198 r/ 149 r/ 110 r/ 111 r/ 143

3362121063 FRP /2...........................................................- - - - - - -

 Drop frame type (12 inches)....................... (NA) r/ 157 r/ 158 r/ 167 r/ 172 r/ 196 r/ 150

3362121005 Steel /1.......................................................... 1 (D) (D) (D) (D) (D) (D)

3362121017 Aluminum............................................ 6 r/ 157 r/ 158 r/ 167 r/ 172 r/ 196 r/ 150

3362121065 FRP /2.......................................................1 (D) (D) (D) (D) (D) (D)

 Livestock...................................................(NA) 594 610 624 608 606 607

3362121007 Steel /3.....................................................2 (D) (D) (D) (D) (D) (D)

3362121021 Aluminum /3............................................9 594 r/ 610 r/ 624 r/ 608 r/ 606 r/ 607

 All other closed-top dry freight

 vans, including curtain............................. (NA) 9,156 10,668 11,448 11,642 11,125 10,813

 Steel.......................................................... (NA) 157 157 157 161 163 189

3362121009 Less than 30 feet long /4................... 2 (D) (D) (D) (D) (D) (D)

3362120111 30 feet or greater /4............................ 5 r/ 157 r/ 157 r/ 157 r/ 161 r/ 163 r/ 189

 Aluminum................................................. (NA) 8,469 9,948 10,752 10,934 10,412 10,081

3362121023 Less than 30 feet long........................ 12 r/ 420 r/ 452 r/ 492 r/ 616 r/ 533 r/ 503

3362121025 30 feet or greater.................................15 r/ 8,049 r/ 9,496 r/ 10,260 r/ 10,318 r/ 9,879 r/ 9,578

 FRP............................................................ (NA) 530 563 539 547 550 543

3362121067 Less than 30 feet long /2................... 3 (D) (D) (D) (D) (D) (D)

3362121069 30 feet or greater /2............................ 8 r/ 530 r/ 563 r/ 539 r/ 547 r/ 550 r/ 543

 Open tops, including low side

 grain, fruit, etc............................................(NA) 1,115 1,314 1,336 1,229 1,044 1,080

3362121013 Steel /5..................................................... 4 (D) (D) (D) (D) (D) (D)

3362121027 Aluminum /5............................................ 18 (D) (D) (D) (D) (D) (D)

3362121071 FRP /5...................................................... 2 r/ 1,115 r/ 1,314 r/ 1,336 r/ 1,229 r/ 1,044 r/ 1,080

 Tank.............................................................. (NA) 516 522 517 496 447 493

3362121029 For flammable liquids (except 

 casing head transport, including 

 aircraft refuelers), all materials.................... 14 129 147 145 137 141 144

3362121033 Coated for chemicals and acids, 

 all materials /6............................................11 274 258 257 257 206 225

3362121031 For asphalt, all materials /6.......................... 9 (D) (D) (D) (D) (D) (D)

3362121035 All other, including noncoated 

 for chemicals and acids, high 

 pressure, food and milk, sanitary, 

 cryogenics, all materials............................16 r/ 113 r/ 117 r/ 115 102 100 124

3362121041 Platform........................................................ 32 r/ 2,385 2,400 r/ 2,338 2,404 r/ 2,252 r/ 2,271

All other trailers..................................................(NA) 3,742 3,557 3,541 3,488 3,463 3,474

3362121037 Bulk commodity and dry materials,

 including pneumatic and mechanical

 discharge, both tank and hopper

 types (except van).......................................... 15 r/ 224 r/ 221 r/ 225 r/ 223 r/ 226 r/ 225

3362121039 Pole, logging and pipe.......................................13 r/ 149 r/ 142 r/ 139 r/ 137 r/ 140 r/ 149

 Low-bed heavy haulers, over 10-ton

 capacity, excluding tilt-bed

 trailers.......................................................... (NA) 1,202 1,110 1,140 1,109 1,104 1,127

3362121043 Under 40-ton capacity......................................36 r/ 823 r/ 744 r/ 759 r/ 706 r/ 691 r/ 721

3362121045 40-ton capacity and over.................................... 30 r/ 379 r/ 366 r/ 381 r/ 403 r/ 413 r/ 406

 Dump trailers and dump chassis,

 highway type (rear, side, and 

 bottom dump, including 

 nonpneumatic hoppers).................................. (NA) 1,240 1,183 1,159 1,154 1,129 1,102
Continued 3

Table 2. Quantity of Shipments of Truck Trailers by Month and Type of Trailer: 1998

[Number of units]

 Product No. of

code Product description cos. Jul. Aug. Sep. Oct. Nov. Dec.

3362121047 For materials................................................. 40 r/ 907 r/ 894 r/ 900 r/ 882 r/ 870 r/ 884

3362121049 For other, including demolition

 and excavation..........................................24 r/ 333 r/ 289 r/ 259 r/ 272 r/ 259 r/ 218

3362121051 Automobile transport trailers /7.......................... 7 (D) (D) (D) (D) (D) (D)

3362121055 All other trailers and chassis 

 (except detachable trailers and 

 detachable trailer chassis) /7............................ 33 r/ 927 r/ 901 r/ 878 865 864 r/ 871

3362121057 Detachable trailer bodies

 (containers), sold separately.............................. 6 r/ 542 r/ 507 r/ 526 r/ 534 r/ 504 r/ 520

3362121059 Detachable trailer chassis and 

 running gear, sold separately.........................14 r/ 1,372 r/ 1,587 r/ 1,507 r/ 1,266 r/ 1,517 r/ 1,201

3362121053 Dollies and converter gear..............................21 r/ 251 r/ 317 r/ 235 r/ 200 r/ 167 r/ 147

 - Represents zero. D Withheld to avoid disclosing data for individual companies. FRP Fiberglass reinforced plastics/plywood. 

NA Not available. r/Revised by 5 percent or more from previously published data.

 1/Product codes 3362121001, 3362121003 and 3362121005 are combined with product code 3362121015 to avoid disclosing data 

for individual companies. 

 2/Product codes 3362121063, 3362121065 and 3362121067 are combined with product code 3362121069 to avoid disclosing data 

for individual companies. 

 3/Product code 3362121007 is combined with product code 3362121021 to avoid disclosing data for individual companies.

 4/Product code 3362121009 is combined with product code 3362120111 to avoid disclosing data for individual companies.

 5/Product codes 3362121013 and 3362121027 are combined with product code 3362121071 to avoid disclosing data for 

individual companies. 

 6/Product code 3362121031 is combined with product code 3362121033 to avoid disclosing data for individual companies.

 7/Product code 3362121051 is combined with product code 3362121055 to avoid disclosing data for individual companies.
Continued 1

Table 3. Value of Shipments of Truck Trailers by Month and Type of Trailer: 1998

[Value in thousands of dollars]

Product No. of

code Product description cos. Total Jan. Feb. Mar. Apr. May Jun.

Complete trailers and chassis (except

 detachables)...................................................... 166 5,430,438 408,176 428,508 461,998 460,611 456,666 469,704

 Vans................................................................ (NA) 3,590,964 258,679 275,547 305,432 300,640 299,713 307,621

 Closed top:

 Insulated (refrigerated)..............................(NA) 1,081,433 79,711 80,543 93,420 94,489 92,932 88,575

3362121001 Steel /1..................................................... 1 (D) (D) (D) (D) (D) (D) (D)

3362121015 Alulminum /1..............................................9 1,081,433 r/ 79,711 r/ 80,543 r/ 93,420 r/ 94,489 r/ 92,932 r/ 88,575

3362121061 FRP........................................................... - - - - - - - -

 Semi-insulated (non-refrigerated)..............(NA) 35,671 2,342 2,127 4,163 3,923 3,013 1,847

3362121003 Steel /1..................................................... 2 (D) (D) (D) (D) (D) (D) (D)

3362121019 Aluminum............................................... 6 35,671 r/ 2,342 r/ 2,127 r/ 4,163 r/ 3,923 r/ 3,013 r/ 1,847

3362121063 FRP /2...........................................................- - - - - - - -

 Drop frame type (12 inches).......................(NA) 37,196 2,729 3,172 3,378 2,842 3,306 3,901

3362121005 Steel /1.......................................................... 1 (D) (D) (D) (D) (D) (D) (D)

3362121017 Aluminum............................................ 6 37,196 r/ 2,729 r/ 3,172 r/ 3,378 r/ 2,842 r/ 3,306 r/ 3,901

3362121065 FRP /2....................................................... 1 (D) (D) (D) (D) (D) (D) (D)

 Livestock................................................... (NA) 124,460 10,438 9,818 10,936 10,623 9,416 10,701

3362121007 Steel /3..................................................... 2 (D) (D) (D) (D) (D) (D) (D)

3362121021 Aluminum /3............................................ 9 124,460 r/ 10,438 r/ 9,818 r/ 10,936 r/ 10,623 r/ 9,416 r/ 10,701

 All other closed-top dry freight

 vans, including curtain.............................(NA) 2,115,279 148,940 163,239 180,023 175,108 175,443 183,819

 Steel..........................................................(NA) 32,191 2,464 3,901 3,080 2,367 2,417 2,367

3362121009 Less than 30 feet long /4................... 2 (D) (D) (D) (D) (D) (D) (D)

3362120111 30 feet or greater /4............................ 5 32,191 r/ 2,464 r/ 3,901 r/ 3,080 r/ 2,367 r/ 2,417 r/ 2,367

 Aluminum................................................. (NA) 1,991,750 138,479 150,318 168,473 163,789 164,658 173,795

3362121023 Less than 30 feet long........................ 12 74,806 r/ 5,566 r/ 6,023 r/ 6,339 r/ 6,295 r/ 5,898 r/ 5,325

3362121025 30 feet or greater................................. 15 1,916,944 r/ 132,913 r/ 144,295 r/ 162,134 r/ 157,494 r/ 158,760 r/ 168,470

 FRP............................................................(NA) 91,338 7,997 9,020 8,470 8,952 8,368 7,657

3362121067 Less than 30 feet long /2................... 3 (D) (D) (D) (D) (D) (D) (D)

3362121069 30 feet or greater /2............................ 8 91,338 r/ 7,997 r/ 9,020 r/ 8,470 r/ 8,952 r/ 8,368 r/ 7,657

 Open tops, including low side

 grain, fruit, etc............................................(NA) 232,596 16,861 18,775 17,675 17,578 18,616 20,625

3362121013 Steel /5..................................................... 4 (D) (D) (D) (D) (D) (D) (D)

3362121027 Aluminum /5............................................ 18 232,596 r/ 16,861 r/ 18,775 r/ 17,675 r/ 17,578 r/ 18,616 r/ 20,625

3362121071 FRP /5...................................................... 2 (D) (D) (D) (D) (D) (D) (D)

 Tank.............................................................. (NA) 268,585 22,056 22,835 23,989 23,283 22,248 23,192

3362121029 For flammable liquids (except 

 casing head transport, including 

 aircraft refuelers), all materials....................14 81,015 6,669 6,404 6,706 6,719 6,499 6,979

3362121033 Coated for chemicals and acids, 

 all materials /6............................................ 11 138,958 11,103 12,919 12,932 11,282 r/ 12,062 12,477

3362121031 For asphalt, all materials /6.......................... 9 (D) (D) (D) (D) (D) (D) (D)

3362121035 All other, including noncoated 

 for chemicals and acids, high 

 pressure, food and milk, sanitary, 

 cryogenics, all materials............................ 16 48,612 r/ 4,284 r/ 3,512 r/ 4,351 r/ 5,282 r/ 3,687 r/ 3,736

3362121041 Platform........................................................ 32 461,923 r/ 36,168 r/ 36,683 r/ 37,045 r/ 39,917 r/ 37,444 r/ 42,116

All other trailers..................................................(NA) 1,108,966 91,273 93,443 95,532 96,771 97,261 96,775

3362121037 Bulk commodity and dry materials,

 including pneumatic and mechanical

 discharge, both tank and hopper

 types (except van).......................................... 15 103,180 r/ 8,560 r/ 8,718 r/ 8,639 r/ 8,645 r/ 8,513 r/ 8,660

3362121039 Pole, logging and pipe....................................... 13 17,295 r/ 1,441 r/ 1,487 r/ 1,476 r/ 1,390 r/ 1,525 r/ 1,465

 Low-bed heavy haulers, over 10-ton

 capacity, excluding tilt-bed

 trailers.......................................................... (NA) 408,686 33,568 32,527 33,197 35,708 36,355 34,524

3362121043 Under 40-ton capacity......................................36 169,113 r/ 13,739 r/ 14,167 r/ 15,044 r/ 15,112 r/ 13,301 r/ 13,549

3362121045 40-ton capacity and over.................................... 30 239,573 r/ 19,829 r/ 18,360 r/ 18,153 r/ 20,596 r/ 23,054 r/ 20,975

 Dump trailers and dump chassis,

 highway type (rear, side, and 

 bottom dump, including 

 nonpneumatic hoppers)..................................(NA) 360,082 28,072 30,997 33,276 30,851 31,523 32,794

3362121047 For materials................................................. 40 258,039 r/ 20,737 r/ 21,702 r/ 23,149 r/ 22,185 r/ 22,909 r/ 22,897

3362121049 For other, including demolition

 and excavation.......................................... 24 102,043 r/ 7,335 r/ 9,295 r/ 10,127 r/ 8,666 r/ 8,614 r/ 9,897

3362121051 Automobile transport trailers /7..........................7 (D) (D) (D) (D) (D) (D) (D)

3362121055 All other trailers and chassis 

 (except detachable trailers and 

 detachable trailer chassis) /7............................33 219,723 19,632 19,714 r/ 18,944 20,177 19,345 r/ 19,332

3362121057 Detachable trailer bodies, 

 containers, sold separately.............................. 6 91,997 r/ 7,802 r/ 7,541 r/ 7,030 r/ 8,100 r/ 7,608 r/ 7,283

3362121059 Detachable trailer chassis and 

 running gear, sold separately......................... 14 118,246 r/ 6,763 r/ 8,648 r/ 12,824 r/ 9,788 r/ 8,214 r/ 10,489

3362121053 Dollies and converter gear.............................. 21 20,635 r/ 1,348 r/ 2,346 r/ 1,469 r/ 2,669 r/ 1,929 r/ 1,740
Continued 2

Table 3. Value of Shipments of Truck Trailers by Month and Type of Trailer: 1998

[Value in thousands of dollars]

Product No. of

code Product description cos. Jul. Aug. Sep. Oct. Nov. Dec.

Complete trailers and chassis (except

 detachables)......................................................166 425,782 454,597 476,830 480,074 455,840 451,652

 Vans................................................................(NA) 268,611 312,850 324,285 327,530 308,260 301,796

 Closed top:

 Insulated (refrigerated)..............................(NA) 80,578 97,694 95,351 97,388 90,228 90,524

3362121001 Steel /1..................................................... 1 (D) (D) (D) (D) (D) (D)

3362121015 Alulminum /1..............................................9 r/ 80,578 r/ 97,694 r/ 95,351 r/ 97,388 r/ 90,228 r/ 90,524

3362121061 FRP........................................................... - - - - - - -

 Semi-insulated (non-refrigerated)..............(NA) 2,057 4,416 3,618 2,697 2,759 2,709

3362121003 Steel /1..................................................... 2 (D) (D) (D) (D) (D) (D)

3362121019 Aluminum............................................... 6 r/ 2,057 r/ 4,416 r/ 3,618 r/ 2,697 r/ 2,759 r/ 2,709

3362121063 FRP /2...........................................................- - - - - - -

 Drop frame type (12 inches)....................... (NA) 2,819 2,840 2,982 3,110 3,475 2,642

3362121005 Steel /1.......................................................... 1 (D) (D) (D) (D) (D) (D)

3362121017 Aluminum............................................ 6 r/ 2,819 r/ 2,840 r/ 2,982 r/ 3,110 r/ 3,475 r/ 2,642

3362121065 FRP /2.......................................................1 (D) (D) (D) (D) (D) (D)

 Livestock...................................................(NA) 9,780 10,508 11,091 10,421 10,418 10,310

3362121007 Steel /3.....................................................2 (D) (D) (D) (D) (D) (D)

3362121021 Aluminum /3............................................9 r/ 9,780 r/ 10,508 r/ 11,091 r/ 10,421 r/ 10,418 r/ 10,310

 All other closed-top dry freight

 vans, including curtain............................. (NA) 156,761 178,722 191,579 194,433 186,910 180,302

 Steel.......................................................... (NA) 2,454 2,416 2,411 2,715 2,573 3,026

3362121009 Less than 30 feet long /4................... 2 (D) (D) (D) (D) (D) (D)

3362120111 30 feet or greater /4............................ 5 r/ 2,454 r/ 2,416 r/ 2,411 r/ 2,715 r/ 2,573 r/ 3,026

 Aluminum................................................. (NA) 147,792 169,130 182,465 184,923 177,441 170,487

3362121023 Less than 30 feet long........................ 12 r/ 5,816 r/ 5,840 r/ 6,794 r/ 7,978 r/ 7,081 r/ 5,851

3362121025 30 feet or greater.................................15 r/ 141,976 r/ 163,290 r/ 175,671 r/ 176,945 r/ 170,360 r/ 164,636

 FRP............................................................ (NA) 6,515 7,176 6,703 6,795 6,896 6,789

3362121067 Less than 30 feet long /2................... 3 (D) (D) (D) (D) (D) (D)

3362121069 30 feet or greater /2............................ 8 r/ 6,515 r/ 7,176 r/ 6,703 r/ 6,795 6,896 r/ 6,789

 Open tops, including low side

 grain, fruit, etc............................................(NA) 18,673 23,086 23,282 22,178 17,229 18,018

3362121013 Steel /5..................................................... 4 (D) (D) (D) (D) (D) (D)

3362121027 Aluminum /5............................................ 18 r/ 18,673 r/ 23,086 r/ 23,282 r/ 22,178 r/ 17,229 r/ 18,018

3362121071 FRP /5...................................................... 2 (D) (D) (D) (D) (D) (D)

 Tank.............................................................. (NA) 22,578 22,540 22,716 21,586 19,840 21,722

3362121029 For flammable liquids (except 

 casing head transport, including 

 aircraft refuelers), all materials.................... 14 6,416 r/ 6,925 r/ 6,952 6,576 r/ 7,244 r/ 6,926

3362121033 Coated for chemicals and acids, 

 all materials /6............................................11 12,312 r/ 11,479 11,780 11,435 9,153 10,024

3362121031 For asphalt, all materials /6.......................... 9 (D) (D) (D) (D) (D) (D)

3362121035 All other, including noncoated 

 for chemicals and acids, high 

 pressure, food and milk, sanitary, 

 cryogenics, all materials............................16 r/ 3,850 r/ 4,136 r/ 3,984 r/ 3,575 r/ 3,443 r/ 4,772

3362121041 Platform........................................................ 32 r/ 38,878 38,838 38,603 40,736 r/ 37,528 37,967

All other trailers..................................................(NA) 95,715 80,369 91,226 90,222 90,212 90,167

3362121037 Bulk commodity and dry materials,

 including pneumatic and mechanical

 discharge, both tank and hopper

 types (except van).......................................... 15 r/ 8,546 r/ 8,546 r/ 8,600 r/ 8,516 r/ 8,646 r/ 8,591

3362121039 Pole, logging and pipe.......................................13 r/ 1,484 r/ 1,404 r/ 1,383 r/ 1,383 r/ 1,403 r/ 1,454

 Low-bed heavy haulers, over 10-ton

 capacity, excluding tilt-bed

 trailers..........................................................(NA) 34,753 33,283 33,639 33,141 33,765 34,226

3362121043 Under 40-ton capacity......................................36 r/ 15,171 r/ 14,660 r/ 14,173 r/ 12,875 r/ 13,409 r/ 13,913

3362121045 40-ton capacity and over.................................... 30 r/ 19,582 r/ 18,623 r/ 19,466 r/ 20,266 r/ 20,356 r/ 20,313

 Dump trailers and dump chassis,

 highway type (rear, side, and 

 bottom dump, including 

 nonpneumatic hoppers).................................. (NA) 30,803 29,395 28,740 28,437 27,920 27,274
Continued 3

Table 3. Value of Shipments of Truck Trailers by Month and Type of Trailer: 1998

[Value in thousands of dollars]

Product No. of

code Product description cos. Jul. Aug. Sep. Oct. Nov. Dec.

3362121047 For materials.................................................40 r/ 21,624 r/ 21,050 r/ 20,803 r/ 20,233 r/ 20,299 r/ 20,451

3362121049 For other, including demolition

 and excavation.......................................... 24 r/ 9,179 r/ 8,345 r/ 7,937 r/ 8,204 r/ 7,621 r/ 6,823

3362121051 Automobile transport trailers /7..........................7 (D) (D) (D) (D) (D) (D)

3362121055 All other trailers and chassis 

 (except detachable trailers and 

 detachable trailer chassis) /7............................ 33 20,129 7,741 r/ 18,864 r/ 18,745 r/ 18,478 r/ 18,622

3362121057 Detachable trailer bodies

 (containers), sold separately..............................6 r/ 8,474 r/ 7,458 r/ 8,041 r/ 8,172 r/ 6,985 r/ 7,503

3362121059 Detachable trailer chassis and 

 running gear, sold separately.........................14 r/ 9,745 r/ 11,487 r/ 10,934 r/ 9,311 r/ 10,799 r/ 9,244

3362121053 Dollies and converter gear.............................. 21 r/ 1,699 r/ 2,129 r/ 1,578 r/ 1,597 r/ 1,132 r/ 999

 - Represents zero. D Withheld to avoid disclosing data for individual companies. FRP Fiberglass reinforced plastics/plywood. NA Not 

available. r/Revised by 5 percent or more from previously published data. 

 1/Product codes 3362121001, 3362121003 and 3362121005 are combined with product code 3362121015 to avoid disclosing data for individual 

companies.

 2/Product codes 3362121063, 3362121065 and 3362121067 are combined with product code 3362121069 to avoid disclosing data for individual 

companies. 

 3/Product code 3362121007 is combined with product code 3362121021 to avoid disclosing data for individual companies.

 4/Product code 3362121009 is combined with product code 3362120111 to avoid disclosing data for individual companies.

 5/Product codes 3362121013 and 3362121027 are combined with product code 3362121071 to avoid disclosing data for individual companies.

 6/Product code 3362121031 is combined with product code 3362121033 to avoid disclosing data for individual companies.

 7/Product code 3362121051 is combined with product code 3362121055 to avoid disclosing data for individual companies.
Continued 1

Table 4. Quantity of Shipments of Truck Trailers by Month and Type of Trailer: 1997

[Number of units]

 Product No. of

code Product description cos. Total Jan. Feb. Mar. Apr. May Jun.

Complete trailers and chassis (except

 detachables)......................................................165 231,555 17,331 17,808 19,013 19,312 19,704 19,585

 Vans................................................................(NA) 162,557 11,977 12,357 13,126 13,231 13,477 13,522

 Closed top:

 Insulated (refrigerated)..............................(NA) 32,448 2,297 2,353 2,656 2,822 2,731 2,750

3362121001 Steel /1..................................................... 2 (D) (D) (D) (D) (D) (D) (D)

3362121015 Alulminum /1..............................................9 32,448 r/ 2,297 r/ 2,353 r/ 2,656 r/ 2,822 r/ 2,731 r/ 2,750

3362121061 FRP........................................................... - - - - - - - - 

 Semi-insulated (non-refrigerated).............. (NA) 1,494 136 107 152 228 90 87

3362121003 Steel /1..................................................... 4 (D) (D) (D) (D) (D) (D) (D)

3362121019 Aluminum............................................... 7 1,494 r/ 136 r/ 107 r/ 152 r/ 228 r/ 90 r/ 87

3362121063 FRP ........................................................... - - - - - - - -

 Drop frame type (12 inches)....................... (NA) 976 49 123 r/ 79 r/ 70 r/ 92 r/ 98

3362121005 Steel /1.......................................................... 1 (D) (D) (D) (D) (D) (D) (D)

3362121017 Aluminum............................................ 8 976 r/ 49 r/ 123 r/ 79 r/ 70 r/ 92 r/ 98

3362121065 FRP /2....................................................... 2 (D) (D) (D) (D) (D) (D) (D)

 Livestock...................................................(NA) 7,078 587 576 589 585 571 612

3362121007 Steel /3..................................................... 1 (D) (D) (D) (D) (D) (D) (D)

3362121021 Aluminum /3............................................8 7,078 r/ 587 r/ 576 r/ 589 r/ 585 r/ 571 r/ 612

 All other closed-top dry freight

 vans, including curtain............................. (NA) 107,632 7,881 8,184 8,647 8,564 9,005 8,870

 Steel.......................................................... (NA) 849 55 54 63 68 75 93

3362121009 Less than 30 feet long /4................... 1 (D) (D) (D) (D) (D) (D) (D)

3362120111 30 feet or greater /4............................ 7 849 r/ 55 r/ 54 r/ 63 r/ 68 r/ 75 r/ 93

 Aluminum................................................. (NA) 99,806 7,303 7,476 8,033 7,974 8,426 8,237

3362121023 Less than 30 feet long........................ 12 5,531 r/ 374 r/ 353 r/ 367 r/ 476 r/ 408 r/ 684

3362121025 30 feet or greater.................................20 94,275 r/ 6,929 r/ 7,123 r/ 7,666 r/ 7,498 r/ 8,018 r/ 7,553

 FRP............................................................ (NA) 6,977 523 654 551 522 504 540

3362121067 Less than 30 feet long /2................... 6 (D) (D) (D) (D) (D) (D) (D)

3362121069 30 feet or greater /2............................ 9 6,977 r/ 523 r/ 654 r/ 551 r/ 522 r/ 504 r/ 540

 Open tops, including low side

 grain, fruit, etc............................................(NA) 12,929 1,027 1,014 1,003 962 988 1,105

3362121013 Steel /5..................................................... 7 (D) (D) (D) (D) (D) (D) (D)

3362121027 Aluminum /5............................................ 18 (D) (D) (D) (D) (D) (D) (D)

3362121071 FRP /5...................................................... 1 12,929 r/ 1,027 r/ 1,014 r/ 1,003 r/ 962 r/ 988 r/ 1,105

 Tank.............................................................. (NA) 4,982 376 370 400 397 415 407

3362121029 For flammable liquids (except 

 casing head transport, including 

 aircraft refuelers), all materials.................... 15 1,511 123 119 118 127 128 126

3362121033 Coated for chemicals and acids, 

 all materials /6............................................11 2,410 183 158 200 172 186 203

3362121031 For asphalt, all materials /6.......................... 8 (D) (D) (D) (D) (D) (D) (D)

3362121035 All other, including noncoated 

 for chemicals and acids, high 

 pressure, food and milk, sanitary, 

 cryogenics, all materials............................18 1,061 r/ 70 r/ 93 r/ 82 r/ 98 r/ 101 r/ 78

3362121041 Platform........................................................ 35 25,606 r/ 2,068 r/ 2,065 r/ 2,178 r/ 2,098 r/ 2,356 r/ 2,355

All other trailers..................................................(NA) 38,410 2,910 3,016 3,309 3,586 3,456 3,301

3362121037 Bulk commodity and dry materials,

 including pneumatic and mechanical

 discharge, both tank and hopper

 types (except van).......................................... 16 2,556 r/ 209 r/ 211 r/ 217 r/ 211 r/ 212 r/ 209

3362121039 Pole, logging and pipe.......................................17 1,767 r/ 154 r/ 151 r/ 142 r/ 151 r/ 148 r/ 149

 Low-bed heavy haulers, over 10-ton

 capacity, excluding tilt-bed

 trailers.......................................................... (NA) 13,271 949 1,014 1,122 1,242 1,167 1,194

3362121043 Under 40-ton capacity......................................39 8,896 r/ 642 r/ 699 r/ 737 842 789 r/ 805

3362121045 40-ton capacity and over.................................... 33 4,375 r/ 307 r/ 315 r/ 385 r/ 400 r/ 378 r/ 389

 Dump trailers and dump chassis,

 highway type (rear, side, and 

 bottom dump, including 

 nonpneumatic hoppers).................................. (NA) 13,410 1,009 1,082 1,144 1,285 1,249 1,150

3362121047 For materials.................................................43 10,195 r/ 786 837 r/ 906 r/ 978 r/ 955 r/ 880

3362121049 For other, including demolition

 and excavation.......................................... 20 3,215 r/ 223 r/ 245 r/ 238 307 r/ 294 r/ 270

3362121051 Automobile transport trailers /7.......................... 8 (D) (D) (D) (D) (D) (D) (D)

3362121055 All other trailers and chassis 

 (except detachable trailers and 

 detachable trailer chassis) /7............................ 30 7,406 r/ 589 r/ 558 r/ 684 r/ 697 r/ 680 r/ 599

3362121057 Detachable trailer bodies, 

 containers, sold separately..............................11 6,026 r/ 496 r/ 520 r/ 503 r/ 511 r/ 526 r/ 513

3362121059 Detachable trailer chassis and 

 running gear, sold separately.........................16 12,191 r/ 1,015 r/ 1,056 r/ 1,048 r/ 1,089 r/ 713 r/ 715

3362121053 Dollies and converter gear.............................. 22 2,480 r/ 192 r/ 183 r/ 193 r/ 187 r/ 236 r/ 270
Continued 2

Table 4. Quantity of Shipments of Truck Trailers by Month and Type of Trailer: 1997

[Number of units]

 Product No. of

code Product description cos. Jul. Aug. Sep. Oct. Nov. Dec.

Complete trailers and chassis (except

 detachables)......................................................165 18,490 20,206 20,767 19,013 19,352 20,974

 Vans................................................................(NA) 12,959 14,560 15,067 13,126 13,955 15,200

 Closed top:

 Insulated (refrigerated)..............................(NA) 2,578 2,738 2,905 2,656 2,923 3,039

3362121001 Steel /1..................................................... 2 (D) (D) (D) (D) (D) (D)

3362121015 Alulminum /1..............................................9 r/ 2,578 r/ 2,738 r/ 2,905 r/ 2,656 r/ 2,923 r/ 3,039

3362121061 FRP........................................................... - - - - - - - 

 Semi-insulated (non-refrigerated)..............(NA) 66 82 159 152 123 112

3362121003 Steel /1..................................................... 4 (D) (D) (D) (D) (D) (D)

3362121019 Aluminum............................................... 7 r/ 66 r/ 82 r/ 159 r/ 152 r/ 123 r/ 112

3362121063 FRP ........................................................... - - - - - - -

 Drop frame type (12 inches)....................... (NA) r/ 54 r/ 75 r/ 79 r/ 79 r/ 136 r/ 42

3362121005 Steel /1.......................................................... 1 (D) (D) (D) (D) (D) (D)

3362121017 Aluminum............................................ 8 r/ 54 r/ 75 r/ 79 r/ 79 r/ 136 r/ 42

3362121065 FRP /2.......................................................2 (D) (D) (D) (D) (D) (D)

 Livestock...................................................(NA) 598 607 597 589 582 585

3362121007 Steel /3.....................................................1 (D) (D) (D) (D) (D) (D)

3362121021 Aluminum /3............................................8 598 r/ 607 r/ 597 r/ 589 r/ 582 r/ 585

 All other closed-top dry freight

 vans, including curtain............................. (NA) 8,548 9,818 10,025 8,647 9,157 10,286

 Steel.......................................................... (NA) 56 57 68 63 78 119

3362121009 Less than 30 feet long /4................... 1 (D) (D) (D) (D) (D) (D)

3362120111 30 feet or greater /4............................ 7 r/ 56 r/ 57 r/ 68 r/ 63 r/ 78 r/ 119

 Aluminum................................................. (NA) 7,908 9,189 9,134 8,033 8,547 9,546

3362121023 Less than 30 feet long........................ 12 r/ 482 r/ 681 r/ 632 r/ 367 r/ 326 r/ 381

3362121025 30 feet or greater.................................20 r/ 7,426 r/ 8,508 r/ 8,502 r/ 7,666 r/ 8,221 r/ 9,165

 FRP............................................................ (NA) 584 572 823 551 532 621

3362121067 Less than 30 feet long /2................... 6 (D) (D) (D) (D) (D) (D)

3362121069 30 feet or greater /2............................ 9 r/ 584 r/ 572 r/ 823 r/ 551 r/ 532 r/ 621

 Open tops, including low side

 grain, fruit, etc............................................(NA) 1,115 1,240 1,302 1,003 1,034 1,136

3362121013 Steel /5..................................................... 7 (D) (D) (D) (D) (D) (D)

3362121027 Aluminum /5............................................ 18 (D) (D) (D) (D) (D) (D)

3362121071 FRP /5...................................................... 1 r/ 1,115 r/ 1,240 r/ 1,302 r/ 1,003 r/ 1,034 r/ 1,136

 Tank.............................................................. (NA) 417 447 431 400 442 480

3362121029 For flammable liquids (except 

 casing head transport, including 

 aircraft refuelers), all materials....................15 130 134 130 118 129 129

3362121033 Coated for chemicals and acids, 

 all materials /6............................................11 211 226 213 200 224 234

3362121031 For asphalt, all materials /6.......................... 8 (D) (D) (D) (D) (D) (D)

3362121035 All other, including noncoated 

 for chemicals and acids, high 

 pressure, food and milk, sanitary, 

 cryogenics, all materials............................18 r/ 76 r/ 87 r/ 88 82 89 117

3362121041 Platform........................................................ 35 r/ 1,890 2,087 r/ 2,214 2,178 r/ 2,023 r/ 2,094

All other trailers..................................................(NA) 3,224 3,112 3,055 3,309 2,932 3,200

3362121037 Bulk commodity and dry materials,

 including pneumatic and mechanical

 discharge, both tank and hopper

 types (except van).......................................... 16 r/ 214 r/ 214 r/ 213 r/ 217 r/ 215 r/ 214

3362121039 Pole, logging and pipe.......................................17 r/ 142 r/ 147 r/ 144 r/ 142 r/ 149 r/ 148

 Low-bed heavy haulers, over 10-ton

 capacity, excluding tilt-bed

 trailers..........................................................(NA) 1,136 1,048 1,144 1,122 1,051 1,082

3362121043 Under 40-ton capacity......................................39 r/ 777 r/ 696 r/ 712 r/ 737 r/ 707 r/ 753

3362121045 40-ton capacity and over.................................... 33 r/ 359 r/ 352 r/ 432 r/ 385 r/ 344 r/ 329

 Dump trailers and dump chassis,

 highway type (rear, side, and 

 bottom dump, including 

 nonpneumatic hoppers).................................. (NA) 1,094 1,113 1,024 1,144 981 1,135
Continued 3

Table 4. Quantity of Shipments of Truck Trailers by Month and Type of Trailer: 1997

[Number of units]

 Product No. of

code Product description cos. Jul. Aug. Sep. Oct. Nov. Dec.

3362121047 For materials.................................................43 r/ 797 r/ 829 r/ 746 r/ 906 r/ 729 r/ 846

3362121049 For other, including demolition

 and excavation.......................................... 20 r/ 297 r/ 284 r/ 278 r/ 238 r/ 252 r/ 289

3362121051 Automobile transport trailers /7.......................... 8 (D) (D) (D) (D) (D) (D)

3362121055 All other trailers and chassis 

 (except detachable trailers and 

 detachable trailer chassis) /7............................ 30 r/ 638 r/ 590 r/ 530 684 536 r/ 621

3362121057 Detachable trailer bodies

 (containers), sold separately.............................. 11 r/ 517 r/ 484 r/ 510 r/ 471 r/ 500 r/ 475

3362121059 Detachable trailer chassis and 

 running gear, sold separately.........................16 r/ 991 r/ 1,101 r/ 992 r/ 1,048 r/ 1,162 r/ 1,261

3362121053 Dollies and converter gear.............................. 22 r/ 210 r/ 229 r/ 195 r/ 193 r/ 189 r/ 203

 - Represents zero. D Withheld to avoid disclosing data for individual companies. FRP Fiberglass reinforced plastics/plywood. 

NA Not available. r/Revised by 5 percent or more from previously published data.

 1/Product codes 3362121001, 3362121003 and 3362121005 are combined with product code 3362121015 to avoid disclosing data for 

individual companies.

 2/Product codes 3362121063, 3362121065 and 3362121067 are combined with product code 3362121069 to avoid disclosing data for 

individual companies. 

 3/Product code 3362121007 is combined with product code 3362121021 to avoid disclosing data for individual companies.

 4/Product code 3362121009 is combined with product code 3362120111 to avoid disclosing data for individual companies.

 5/Product codes 3362121013 and 3362121027 are combined with product code 3362121071 to avoid disclosing data for individual 

companies. 

 6/Product code 3362121031 is combined with product code 3362121033 to avoid disclosing data for individual companies.

 7/Product code 3362121051 is combined with product code 3362121055 to avoid disclosing data for individual companies.
Continued 1

Table 5. Value of Shipments of Truck Trailers by Month and Type of Trailer: 1997

[Value in thousands of dollars]

Product No. of

code Product description cos. Total Jan. Feb. Mar. Apr. May Jun.

Complete trailers and chassis (except

 detachables)...................................................... 165 4,367,269 321,256 331,358 352,476 364,774 371,464 367,514

 Vans................................................................ (NA) 2,705,761 195,543 202,257 214,677 221,214 227,643 225,468

 Closed top:

 Insulated (refrigerated).............................. (NA) 725,963 51,475 51,790 59,837 63,897 60,507 61,327

3362121001 Steel /1.....................................................2 (D) (D) (D) (D) (D) (D) (D)

3362121015 Alulminum /1.............................................. 9 725,963 r/ 51,475 r/ 51,790 r/ 59,837 r/ 63,897 r/ 60,507 r/ 61,327

3362121061 FRP...........................................................- - - - - - - -

 Semi-insulated (non-refrigerated).............. (NA) (D) (D) (D) (D) (D) (D) (D)

3362121003 Steel /1.....................................................4 (D) (D) (D) (D) (D) (D) (D)

3362121019 Aluminum...............................................7 32,594 3,068 2,267 r/ 3,532 r/ 4,142 r/ 1,958 r/ 1,977

3362121063 FRP ...........................................................- - - - - - - -

 Drop frame type (12 inches)....................... (NA) 20,421 1,012 2,664 1,622 1,505 2,025 2,049

3362121005 Steel /1.......................................................... 1 (D) (D) (D) (D) (D) (D) (D)

3362121017 Aluminum............................................ 8 20,421 r/ 1,012 r/ 2,664 r/ 1,622 r/ 1,505 r/ 2,025 r/ 2,049

3362121065 FRP /2....................................................... 2 (D) (D) (D) (D) (D) (D) (D)

 Livestock................................................... (NA) 111,039 9,229 8,748 9,168 8,997 8,541 10,025

3362121007 Steel /3..................................................... 1 (D) (D) (D) (D) (D) (D) (D)

3362121021 Aluminum /3............................................ 8 111,039 r/ 9,229 r/ 8,748 r/ 9,168 r/ 8,997 r/ 8,541 r/ 10,025

 All other closed-top dry freight

 vans, including curtain............................. (NA) 1,637,685 117,075 122,468 128,220 131,581 141,234 133,537

 Steel.......................................................... (NA) 16,346 1,029 983 1,130 1,275 1,435 1,852

3362121009 Less than 30 feet long /4................... 1 (D) (D) (D) (D) (D) (D) (D)

3362120111 30 feet or greater /4............................7 16,346 r/ 1,029 r/ 983 r/ 1,130 r/ 1,275 r/ 1,435 r/ 1,852

 Aluminum................................................. (NA) 1,551,918 111,105 114,956 121,564 125,282 135,023 126,369

3362121023 Less than 30 feet long........................12 74,822 r/ 4,914 r/ 4,821 r/ 5,066 r/ 6,398 r/ 5,789 r/ 8,136

3362121025 30 feet or greater................................. 20 1,477,096 r/ 106,191 r/ 110,135 r/ 116,498 r/ 118,884 r/ 129,234 r/ 118,233

 FRP............................................................ (NA) 69,421 4,941 6,529 5,526 5,024 4,776 5,316

3362121067 Less than 30 feet long /2................... 6 (D) (D) (D) (D) (D) (D) (D)

3362121069 30 feet or greater /2............................9 69,421 r/ 4,941 r/ 6,529 r/ 5,526 r/ 5,024 r/ 4,776 r/ 5,316

 Open tops, including low side

 grain, fruit, etc............................................ (NA) 210,653 16,752 16,587 15,830 15,234 15,336 18,530

3362121013 Steel /5.....................................................7 (D) (D) (D) (D) (D) (D) (D)

3362121027 Aluminum /5............................................18 210,653 r/ 16,752 r/ 16,587 r/ 15,830 r/ 15,234 r/ 15,336 r/ 18,530

3362121071 FRP /5...................................................... 1 (D) (D) (D) (D) (D) (D) (D)

 Tank..............................................................(NA) 227,592 17,624 17,087 18,477 17,555 19,363 18,763

3362121029 For flammable liquids (except 

 casing head transport, including 

 aircraft refuelers), all materials.................... 15 76,406 6,124 6,149 6,288 6,236 6,966 6,317

3362121033 Coated for chemicals and acids, 

 all materials /6............................................ 11 105,068 8,316 7,281 8,653 7,291 r/ 7,934 8,911

3362121031 For asphalt, all materials /6..........................8 (D) (D) (D) (D) (D) (D) (D)

3362121035 All other, including noncoated 

 for chemicals and acids, high 

 pressure, food and milk, sanitary, 

 cryogenics, all materials............................18 46,118 r/ 3,184 r/ 3,657 r/ 3,536 r/ 4,028 r/ 4,463 r/ 3,535

3362121041 Platform........................................................35 420,418 r/ 33,707 r/ 33,920 r/ 35,112 r/ 35,208 r/ 36,303 r/ 36,303

All other trailers.................................................. (NA) 632,597 74,382 78,094 84,210 90,797 88,155 86,980

3362121037 Bulk commodity and dry materials,

 including pneumatic and mechanical

 discharge, both tank and hopper

 types (except van)..........................................16 86,609 r/ 7,026 r/ 7,232 r/ 7,305 r/ 7,194 r/ 7,093 r/ 7,112

3362121039 Pole, logging and pipe....................................... 17 19,030 r/ 1,840 r/ 1,637 r/ 1,498 r/ 1,601 r/ 1,553 r/ 1,578

 Low-bed heavy haulers, over 10-ton

 capacity, excluding tilt-bed

 trailers..........................................................(NA) 380,901 26,144 27,089 31,735 33,834 32,848 34,176

3362121043 Under 40-ton capacity...................................... 39 161,675 r/ 12,012 r/ 12,321 r/ 12,962 r/ 14,100 r/ 13,891 r/ 14,676

3362121045 40-ton capacity and over.................................... 33 219,226 r/ 14,132 r/ 14,768 r/ 18,773 r/ 19,734 r/ 18,957 r/ 19,500

 Dump trailers and dump chassis,

 highway type (rear, side, and 

 bottom dump, including 

 nonpneumatic hoppers).................................. (NA) 348,979 25,176 28,099 28,569 31,636 30,700 29,751

3362121047 For materials................................................. 43 247,375 r/ 18,829 r/ 21,199 r/ 21,371 r/ 23,060 r/ 22,254 r/ 21,477

3362121049 For other, including demolition

 and excavation..........................................20 101,604 r/ 6,347 r/ 6,900 r/ 7,198 r/ 8,576 r/ 8,446 r/ 8,274

3362121051 Automobile transport trailers /7.......................... 8 (D) (D) (D) (D) (D) (D) (D)

3362121055 All other trailers and chassis 

 (except detachable trailers and 

 detachable trailer chassis) /7............................ 30 177,979 14,196 14,037 r/ 15,103 16,532 15,961 r/ 14,363

3362121057 Detachable trailer bodies, 

 containers, sold separately.............................. 11 90,847 r/ 7,291 r/ 7,886 r/ 7,330 r/ 7,846 r/ 8,271 r/ 7,757

3362121059 Detachable trailer chassis and 

 running gear, sold separately......................... 16 93,589 r/ 8,701 r/ 9,393 r/ 7,605 r/ 8,151 r/ 5,509 r/ 5,565

3362121053 Dollies and converter gear..............................22 19,106 r/ 1,432 r/ 1,490 r/ 1,510 r/ 1,460 r/ 2,116 r/ 1,719
Continued 2

Table 5. Value of Shipments of Truck Trailers by Month and Type of Trailer: 1997

[Value in thousands of dollars]

Product No. of

code Product description cos. Jul. Aug. Sep. Oct. Nov. Dec.

Complete trailers and chassis (except

 detachables)......................................................165 352,056 381,459 392,663 352,476 375,373 404,400

 Vans................................................................(NA) 215,728 241,493 249,080 214,677 238,640 259,341

 Closed top:

 Insulated (refrigerated).............................. (NA) 56,361 60,930 65,204 59,837 66,113 68,685

3362121001 Steel /1.....................................................2 (D) (D) (D) (D) (D) (D)

3362121015 Alulminum /1.............................................. 9 r/ 56,361 r/ 60,930 r/ 65,204 r/ 59,837 r/ 66,113 r/ 68,685

3362121061 FRP........................................................... - - - - - - -

 Semi-insulated (non-refrigerated).............. (NA) (D) (D) (D) (D) (D) (D)

3362121003 Steel /1.....................................................4 (D) (D) (D) (D) (D) (D)

3362121019 Aluminum............................................... 7 r/ 1,595 r/ 1,929 r/ 3,440 r/ 3,532 r/ 2,678 r/ 2,476

3362121063 FRP ........................................................... - - - - - - -

 Drop frame type (12 inches)....................... (NA) 1,124 1,545 1,660 1,622 2,819 774

3362121005 Steel /1.......................................................... 1 (D) (D) (D) (D) (D) (D)

3362121017 Aluminum............................................ 8 r/ 1,124 r/ 1,545 r/ 1,660 r/ 1,622 r/ 2,819 r/ 774

3362121065 FRP /2.......................................................2 (D) (D) (D) (D) (D) (D)

 Livestock...................................................(NA) 9,615 9,914 9,503 9,168 8,993 9,138

3362121007 Steel /3.....................................................1 (D) (D) (D) (D) (D) (D)

3362121021 Aluminum /3............................................8 r/ 9,615 r/ 9,914 r/ 9,503 r/ 9,168 r/ 8,993 r/ 9,138

 All other closed-top dry freight

 vans, including curtain............................. (NA) 130,234 148,612 150,994 128,220 143,398 162,112

 Steel.......................................................... (NA) 1,063 1,064 1,376 1,130 1,552 2,457

3362121009 Less than 30 feet long /4................... 1 (D) (D) (D) (D) (D) (D)

3362120111 30 feet or greater /4............................7 r/ 1,063 r/ 1,064 r/ 1,376 r/ 1,130 r/ 1,552 r/ 2,457

 Aluminum................................................. (NA) 123,502 141,740 141,265 121,564 136,717 152,831

3362121023 Less than 30 feet long........................12 r/ 6,791 r/ 8,506 r/ 8,515 r/ 5,066 r/ 4,971 r/ 5,849

3362121025 30 feet or greater.................................20 r/ 116,711 r/ 133,234 r/ 132,750 r/ 116,498 r/ 131,746 r/ 146,982

 FRP............................................................ (NA) 5,669 5,808 8,353 5,526 5,129 6,824

3362121067 Less than 30 feet long /2................... 6 (D) (D) (D) (D) (D) (D)

3362121069 30 feet or greater /2............................9 r/ 5,669 r/ 5,808 r/ 8,353 r/ 5,526 5,129 r/ 6,824

 Open tops, including low side

 grain, fruit, etc............................................ (NA) 18,394 20,492 21,719 15,830 17,317 18,632

3362121013 Steel /5..................................................... 7 (D) (D) (D) (D) (D) (D)

3362121027 Aluminum /5............................................18 r/ 18,394 r/ 20,492 r/ 21,719 r/ 15,830 r/ 17,317 r/ 18,632

3362121071 FRP /5...................................................... 1 (D) (D) (D) (D) (D) (D)

 Tank..............................................................(NA) 18,972 20,149 19,917 18,477 19,960 21,248

3362121029 For flammable liquids (except 

 casing head transport, including 

 aircraft refuelers), all materials.................... 15 6,258 r/ 6,598 r/ 6,453 6,288 r/ 6,355 r/ 6,374

3362121033 Coated for chemicals and acids, 

 all materials /6............................................ 11 9,320 r/ 9,690 9,525 8,653 9,643 9,851

3362121031 For asphalt, all materials /6..........................8 (D) (D) (D) (D) (D) (D)

3362121035 All other, including noncoated 

 for chemicals and acids, high 

 pressure, food and milk, sanitary, 

 cryogenics, all materials............................18 r/ 3,394 r/ 3,861 r/ 3,939 r/ 3,536 r/ 3,962 r/ 5,023

3362121041 Platform........................................................ 35 r/ 31,955 36,307 35,571 35,112 r/ 34,977 35,943

All other trailers.................................................. (NA) 85,401 83,510 88,095 84,210 81,796 87,868

3362121037 Bulk commodity and dry materials,

 including pneumatic and mechanical

 discharge, both tank and hopper

 types (except van)..........................................16 r/ 7,294 r/ 7,270 r/ 7,195 r/ 7,305 r/ 7,313 r/ 7,270

3362121039 Pole, logging and pipe.......................................17 r/ 1,508 r/ 1,569 r/ 1,542 r/ 1,498 r/ 1,589 r/ 1,617

 Low-bed heavy haulers, over 10-ton

 capacity, excluding tilt-bed

 trailers..........................................................(NA) 32,479 32,258 39,368 31,735 30,078 29,157

3362121043 Under 40-ton capacity...................................... 39 r/ 14,520 r/ 13,788 r/ 14,097 r/ 12,962 r/ 13,187 r/ 13,159

3362121045 40-ton capacity and over.................................... 33 r/ 17,959 r/ 18,470 r/ 25,271 r/ 18,773 r/ 16,891 r/ 15,998

 Dump trailers and dump chassis,

 highway type (rear, side, and 

 bottom dump, including 

 nonpneumatic hoppers).................................. (NA) 29,156 28,334 26,249 28,569 28,434 34,306
Continued 3

Table 5. Value of Shipments of Truck Trailers by Month and Type of Trailer: 1997

[Value in thousands of dollars]

Product No. of

code Product description cos. Jul. Aug. Sep. Oct. Nov. Dec.

3362121047 For materials................................................. 43 r/ 19,550 r/ 19,962 r/ 18,260 r/ 21,371 r/ 18,091 r/ 21,951

3362121049 For other, including demolition

 and excavation..........................................20 r/ 9,606 r/ 8,372 r/ 7,989 r/ 7,198 r/ 10,343 r/ 12,355

3362121051 Automobile transport trailers /7.......................... 8 (D) (D) (D) (D) (D) (D)

3362121055 All other trailers and chassis 

 (except detachable trailers and 

 detachable trailer chassis) /7............................ 30 14,964 14,079 r/ 13,741 r/ 15,103 r/ 14,382 r/ 15,518

3362121057 Detachable trailer bodies

 (containers), sold separately.............................. 11 r/ 7,784 r/ 6,747 r/ 7,718 r/ 7,330 r/ 8,111 r/ 6,776

3362121059 Detachable trailer chassis and 

 running gear, sold separately......................... 16 r/ 7,184 r/ 8,364 r/ 7,542 r/ 7,605 r/ 8,645 r/ 9,325

3362121053 Dollies and converter gear..............................22 r/ 1,624 r/ 1,618 r/ 1,533 r/ 1,510 r/ 1,527 r/ 1,567

 - Represents zero. D Withheld to avoid disclosing data for individual companies. FRP Fiberglass reinforced plastics/plywood. 

NA Not available. r/Revised by 5 percent or more from previously published data.

 1/Product codes 3362121001, 3362121003 and 3362121005 are combined with product code 3362121015 to avoid disclosing data 

for individual companies.

 2/Product codes 3362121063, 3362121065 and 3362121067 are combined with product code 3362121069 to avoid disclosing data 

for individual companies.

 3/Product code 3362121007 is combined with product code 3362121021 to avoid disclosing data for individual companies.

 4/Product code 3362121009 is combined with product code 3362120111 to avoid disclosing data for individual companies.

 5/Product codes 3362121013 and 3362121027 are combined with product code 3362121071 to avoid disclosing data for individual 

companies.

 6/Product code 3362121031 is combined with product code 3362121033 to avoid disclosing data for individual companies.

 7/Product code 3362121051 is combined with product code 3362121055 to avoid disclosing data for individual companies.
Table 6. Quantity and Valule of Shipments of Truck Trailers and Vans by Type

 of Material: 1998 and 1997

[Quantity in units. Value in thousands of dollars]

Total FRP and steel/1 Aluminum

Month Quantity Value Quantity Value Quantity Value

1998

 Total .......... 199,690 3,626,635 28,873 478,979 170,817 3,147,656

January ................. 14,802 261,021 2,434 39,779 12,368 221,242

February ................ 15,600 277,674 2,425 42,304 13,175 235,370

March .................... 17,010 309,595 2,512 41,119 14,498 268,476

April ...................... 16,499 304,563 2,384 41,518 14,115 263,045

May ....................... 16,606 302,726 2,552 42,240 14,054 260,486

June ...................... 17,164 309,468 2,423 39,517 14,741 269,951

July ....................... 14,786 270,668 2,341 38,496 12,445 232,172

August .................. 17,305 317,266 2,372 39,042 14,933 278,224

September............. 17,958 327,903 2,344 38,473 15,614 289,430

October ................. 18,024 330,227 2,350 38,686 15,674 291,541

November ............ 17,109 311,019 2,354 38,614 14,755 272,405

December ............ 16,827 304,505 2,382 39,191 14,445 265,314

1997

 Total .......... 162,557 2,738,355 17,796 262,675 144,761 2,475,680

January ................. 11,977 198,611 1,396 20,405 10,581 178,206

February ............... 12,357 204,524 1,524 21,791 10,833 182,733

March .................... 13,126 218,209 1,447 21,370 11,679 196,839

April ...................... 13,231 225,356 1,425 21,306 11,806 204,050

May ....................... 13,477 229,601 1,410 20,987 12,067 208,614

June ...................... 13,522 227,445 1,459 21,825 12,063 205,620

July ....................... 12,959 217,323 1,484 21,784 11,475 195,539

August .................. 14,560 243,422 1,504 22,932 13,056 220,490

September............. 15,067 252,520 1,709 24,056 13,358 228,464

October ................. 13,126 218,209 1,447 21,370 11,679 196,839

November ............ 13,955 241,318 1,426 21,012 12,529 220,306

December ............ 15,200 261,817 1,565 23,837 13,635 237,980

 1/FRP and steel vans are combined to avoid disclosing data for individual companies.