Corporate Headquarters
13191 Crossroads Pkwy N., Ste 325
City of Industry, CA 91746
Phone: 800.775.2362
Fax: 626.330.7598
www.cemcosteel.com

Manufacturing Facilities
City of Industry, CADenver, COFt. Worth, TX
Pittsburg, CA

Structural Engineering/Design
1001-A Pittsburgh Antioch Hwy
Pittsburg, CA 94565
Phone: 800.775.2362
Fax: 626.330.7598
www.cemcoengineering.com

Technical Services
13191 Crossroads Pkwy N., Ste 325
City of Industry, CA 91746
Phone: 800.416.2278
Fax: 626.249.5004

362VS125-30 VIPERSTUD
Geometric Properties
3-5/8"
1-5/8" x 1-1/4" flange, 30
15 mil ViperStuds are manufactured from standard G40 hot-dipped galvanized steel. G60 and G90 coatings are available throughspecial order, and may require up-charges and extended lead times.

Steel Thickness

49°

Model No.

DesignThickness(in)Minimum
Thickness(in)

Yield(ksi)“W”
Web Sizes(in)Coating362VS125-30

0.03120.0296

33

3-5/8

G40

4,5Flange(in)“L”
Return Lip
(in)

1-1/4

1/4

“L” (LIP)
1/4"
6.35mmNotes: 1. Uncoated steel thickness. Thickness is for carbon sheet steel. 2. Minimum thickness represents 95% of the design thickness
and is the minimum acceptable thickness. 3. Knockout size for 3-5/8” Stud is 1-1/2” x 2-1/2”. 4. Per ASTM C645 & A1003, Table 1.
5. G60 and G90 available upon request. Will require extended lead time and upcharge.

7/64"
2.78mmColor Code (painted on ends): 30 mil: Pink
“W”(WEBDEPTH)ASTM & Code Standards:
n ASTM A653/A653M, A924/A924M, A1003/1003, C645 & C754
n ICC-ES & SFIA Code Compliance Certification Programn ICC ESR-2620■ CBC: 2016, 2019, 2022
■ IBC: 2015, 2018, 2021
■ AISI: S100, S220

STEEL DESIGNTHICKNESS

LEED v4 for Building and Design Constructionn MR Prerequisite: Construction and Demolition Waste Management Planning.
n MR Credit: Construction and Demolition Waste Management.
n MR Credit: Building Product Disclosure and Optimization – Sourcing of Raw Materials, Option 2.
n MR Credit: Building Product Disclosure and Optimization – Environmental Product Declarations, Options 1 & 2.
n MR Credit: Building Product Disclosure and Optimization – Material Ingredients, Option 1.
n MR Credit: Building Life-Cycle Impact Reduction, Option 4.
1¼"

362VS125-30 ViperStud Properties
Gross Properties

Design(in)Min(in)0.0312 0.0296

Yield Weight Area(ksi)(lb/ft) (in2)
33

0.67

lx(in4)rx(in)ly(in4)

Effective Properties

ry(in)

lxd
(in4)

Sx
(in3)

0.197 0.391 1.410 0.037 0.431

0.385

0.172

Notes: 1. Nominal Moments for Viper25 are based on testing.
Allowable moment (Ma) is calculated with safety factor of 1.81
in accordance with chapter F of AISI S100-16/S2-20 specification.
2. Nominal moment for Viper20, Viper 30mil, Viper 33mil andMoment
Allowable Local Buckling
Moment Nominal Moment 2Viper
Ma (in-k)
Mnl (in-k)
3.39

5.67

conventional studs are based on calculations per AISI S100-16/S2-20.
3. Section properties are in accordance with AISI S100-16/S2-20.
4. Web depth-to-thickness ratio exceeds 200. 5. Web depth-tothickness ratio exceeds 260. 6. ViperStud is considered fully braced

Distortional
Buckling Nominal
Moment2 Viper
Mnd (in-k)

Nominal Moment
for Conventional
Studs 3Mn (in-k)

CriticalUnbraced
Length7
Lu (in)5.85

5.14 (30 mil)29.7

when the unbraced length is less than listed Lu. 7. KΦ assumed to be
zero for distortional buckling moments.

Non-Composite Limiting Heights – Braced at 48” O.C.
Depth
(in)
3-5/8

Gauge
205 PSF

7.5 PSF

10 PSF

MemberDesignation

Design(in)

Min
(in)

Yield
(ksi)

Spacing(o.c.)

L /120

L /240L /360L /120

L /240L /360L /120

L /240L /360362VS125-30

0.03120.029633

1220'-0" f17'-2"

15'-0"

16'-4" f15'-0"

13'-1"

14'-2" f13'-8"

11'-11"362VS125-30

0.03120.029633

1617'-4" f15'-7"13'-8"14'-2" f13'-8"11'-11"12'-4" f12'-4" f10'-10"362VS125-30

0.03120.02963324

14'-2" f13'-8"11'-11"11'-7" f11'-7" f10'-5"10'-0" f10'-0" f9'-6"Notes: 1. Limiting heights are in accordance with AISI S100-16/
S2-20 using all steel non-composite design. 2. Limiting heights areestablished by considering flexure, shear, web crippling and deflection.
3. Lateral-Torsional buckling moments are based on section F of AISI
S100-16/S2-20, with max discrete bracing of 48” o.c. 4. For webcrippling, when h/t≤ 200, the web crippling values are computed
based on section G6 of AISI S100-16/S2-20, when h/t>200, the web
crippling values are based on testing with a bearing length of 1”.

5. No web stiffeners are required for studs with h/t < 200, webcrippling and shear values have been confirmed by testing. 6. The
factory punchouts are in accordance with AISI standards. The distancefrom the center of the last punchout to the end of the stud is 12”.
7. Use non-composite tables when 1/2 inch gypsum board, horizontalboard, RC channel, furring channel, or sound clips are used. 8. Review
fire rated assemblies for additional requirements.

“f” - flexure controls; “s” - shear controls; “w” - webcrippling controls. No letter next to the number means
deflection controls.

This technical information reflects the most current information available and supersedes any and all previous publications effective February 20, 2024.

Corporate Headquarters
13191 Crossroads Pkwy N., Ste 325
City of Industry, CA 91746
Phone: 800.775.2362
Fax: 626.330.7598
www.cemcosteel.com

Manufacturing Facilities
City of Industry, CA
Denver, CO
Ft. Worth, TX
Pittsburg, CA

Structural Engineering/Design
1001-A Pittsburgh Antioch Hwy
Pittsburg, CA 94565
Phone: 800.775.2362
Fax: 626.330.7598
www.cemcoengineering.com

Technical Services
13191 Crossroads Pkwy N., Ste 325
City of Industry, CA 91746
Phone: 800.416.2278
Fax: 626.249.5004

362VS125-30 VIPERSTUD

PAGE 2

Non-Composite Limiting Heights – Fully Braced
Depth(in)

Gauge

3-5/8

205 PSF

7.5 PSF

10 PSF

MemberDesignation

Design(in)Min(in)Yield(ksi)

Spacing(o.c.)

L /120

L /240L /360L /120

L /240L /360L /120

L /240L /360362VS125-30

0.03120.029633

1221'-4" f17'-2"15'-0"17'-5" f15'-0"13'-1"15'-0" f13'-7"11'-11"362VS125-30

0.03120.029633

1618'-5" f15'-7"13'-7"15'-0" f13'-7"

11'-11"13'-0" f12'-5"10'-10"362VS125-30

0.03120.029633

2415'-0" f13'-7"11'-11"12'-4" f11'-11"10'-5"10'-7" f10'-7" f9'-5"Notes: 1. Limiting heights are in accordance with AISI S100-16/S2-20
using all steel non-composite design. 2. Limiting heights are established by considering flexure, shear, web crippling, and deflection. 3.
For bending, studs are assumed to be adequately braced to develop fullallowable moment. Studs are considered fully braced when unbraced
length is less the Lu. See section properties table on page 5 for Lu
values. 4. For web crippling, when h/t ≤ 200, the web crippling values
are computed based on section G6 of AISI S100-16/S2-20, when h/t“f” - flexure controls; “s” - shear controls; “w” - webcrippling controls. No letter next to the number means
deflection controls.

> 200, the web crippling values are based on testing with a bearing
length of 1”. 5. No web stiffeners are required for studs with h/t <200, web crippling and shear values have been confirmed by testing.
6. The factory punchouts are in accordance with AISI standards. The
distance from the center of the last punchout to the end of the studis 12”. 7. Use non-composite tables when 1/2 inch gypsum board,
horizontal board, RC channel, furring channel, or sound clips are used.
8. Review fire rated assemblies for additional requirements.

Allowable Composite Heights for Non-Load Bearing Walls
Depth
(in)
3-5/8

205 PSF

7.5 PSF

10 PSF

MemberDesignation

Design(in)

Min
(in)

Yield
(ksi)

Spacing(o.c.)

L /120

L /240L /360L /120

L /240L /360L /120

L /240L /360362VS125-30

0.03120.029633

1223'-3"

18'-6"

16'-2"

20'-4"16'-2"14'-1"

18'-6"

14'-8"

12'-10"362VS125-30

0.03120.029633

1621'-2"

16'-9"

14'-8"

18'-6"

14'-8"

12'-10"16'-4"

13'-4"

11'-6"

362VS125-30

0.03120.0296

33

24

18'-6"

14'-8"

12'-10"15'-4"

12'-10"11'-0"

13'-4"

11'-6"

9'-11"

Gauge

Notes: 1. Sheathing, as specified in Section 3.2.2, must be attached
to both faces of the wall for the full height of the wall with the long
dimension parallel to the studs. 2. Sheathing must be fastened to thestuds with fasteners as specified in Section 3.2.3 and installed perSection 4.2.1. 3. Placement of joints in the gypsum sheathing must bein accordance with Sections 4.6.3 and 4.6.4 of GA-216 or Section 7.5 ofASTM C840. 4. The bottom and top tracks are xxxVT125 (solid flangetrack). A minimum 30 mil slotted flange track (xxxCST250 or xxxSLT250)
may be used for the top track. 5. End-bearing must be a minimum of 1
inch for xxxVT125 (solid flange track) and 1-5/8 inches for xxxCST250
or xxxSLT250 (slotted flange track). 6. Notes 1, 2, & 3 are referenced inICC ESR 2620 page 5. 7. For any other top tracks not listed in note 4,please contact technical services for assistance. 8. For GWB installedhorizontally, see table for “Non-Composite Limiting Heights- FullyBraced” (see above).

Allowable Ceiling Spans
L /240

4 PSF Lateral Support of Compression Flange

MemberFyksi362VS125-30

33

Unsupported Joist Spacing(in.) O.C.

6 PSF Lateral Support of Compression Flange

Midspan Joist Spacing(in.) O.C.

Unsupported Joist Spacing(in.) O.C.

1216

24

1216

24

1216241216

24

11’-4”f10’-6”f9’-5”f16’-0”f14’-10”f13’-3”f10’-2”f9’-5”f8’-6”f14’-4”f13’-3”f11’-9”f

L /360

4 PSF Lateral Support of Compression Flange

MemberFyksi

362VS125-30

33

Midspan Joist Spacing(in.) O.C.

Unsupported Joist Spacing(in.) O.C.

6 PSF Lateral Support of Compression Flange

Midspan Joist Spacing(in.) O.C.

Unsupported Joist Spacing(in.) O.C.

Midspan Joist Spacing(in.) O.C.

1216241216241216241216

24

11’-4”f10’-6”f9’-5”f16’-0”f14’-9”

12’-11”

10’-2”f9’-5”f8’-6”f14’-2”

12’-11”11’-3”

Notes: 1. Ceiling Spans are in accordance with AISI S100-16/S2-20
using all steel non-composite design. 2. Ceiling Spans are establishedby considering flexure, shear, web crippling and deflection. 3. For webcrippling, when h/t ≤ 200, the web crippling values are computed
based on G6 of AISI S100-16/S2-20. When h/t > 200, the web crippling values are based on testing with a bearing length of 1”. 4. No
web stiffeners are required for studs with h/t < 200, web cripplingand shear values have been confirmed by testing. 5. All values arefor simple spans, with compression flange either unbraced or braced
at midspan. 6. Ceiling spans are based on total load of assembly, notincluding storage or live load for accessible ceilings. 7. The factory
punchouts are in accordance with AISI standards. The distance fromthe center of last punchout to the end of the stud is 12”.

“f” - flexure controls; “s” - shear controls; “w” - webcrippling controls. No letter next to the number means
deflection controls.

CEMCO cold-formed steel framing products contain 30% to 37% recycled steel.
n Total Recycled Content: 36.9% n Post-Consumer: 19.8%
n Pre-Consumer: 14.4%
CSI Division:n 09.22.16 – Non-Structural Metal Framing
Check the updated list of Certified Production
Facilities at Intertek’s website at
http://www.intertek.com/building/sfia

AApprovedpproved

This technical information reflects the most current
information available and supersedes any and all
previous publications effective February 20, 2024.
02/20/2024 AT