A-1 ALLOYS
A-1 ALLOYS INC.
3330 Beyer Bl. #F
San Diego, CA, 92173
Phone: 1-800-266-2569
Fax: (619) 591-2198
Email: a1sales@a1alloys.com
Website: www.birdprecision.com
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TRAKLOC® Steel Framing is a revolutionary development in cold-formed steel framing systems. Unlike traditional steel studs, which are cut to length for varying jobsite conditions, TRAKLOC® allows you to order one length member and "adjust" the length accordingly for variances in the slab. The stud consists of a traditional-style framing member combined with an interlocking adjustable component. The adjustable portion allows for telescopic length adjustments and can accommodate variances in the slab, and minor wall height differences.
TRAKLOC® Studs
TRAKLOC® Studs - Drywall
Unit of Measure
Items TRAKLOC® Studs
250TLD125-18
TRAKLOC® 0.0188 Inch (in) Design Thickness Deflection Stud 		TRAKLOC® Studs
250TLD125-24
TRAKLOC® 0.0250 Inch (in) Design Thickness Deflection Stud 		TRAKLOC® Studs
250TLD125-30
TRAKLOC® 0.0312 Inch (in) Design Thickness Deflection Stud 		TRAKLOC® Studs
250TLD125-33
TRAKLOC® 0.0346 Inch (in) Design Thickness Deflection Stud 		TRAKLOC® Studs
362TLD125-18
TRAKLOC® 0.0188 Inch (in) Design Thickness Deflection Stud
Description N/A The variable length studs Deflection (TLD) are two-piece components which allow for the telescoping feature unique to TRAKLOC®. The two-piece components arrive pre-assembled to help speed assembly. The installer simply inserts the top end of the stud in the top track and then extends the stud (telescoping) to the proper length to engage the bottom end of the stud in the bottom track.
Brands N/A A-1 Alloys ClarkDietrich® TRAKLOC®
Design Thickness N/A 0.0188 in N/A 0.0250 in N/A 0.0312 in N/A 0.0346 in N/A 0.0188 in
Yield Strength N/A 33 ksi N/A 57 ksi N/A 33 ksi N/A 33 ksi N/A 33 ksi
Area N/A 0.102 in² N/A 0.135 in² N/A 0.167 in² N/A 0.185 in² N/A 0.123 in²
Weight N/A 0.35 lb/ft N/A 0.46 lb/ft N/A 0.57 lb/ft N/A 0.63 lb/ft N/A 0.42 lb/ft
Gross Section Properties (lx) N/A 0.106 in4 N/A 0.139 in4 N/A 0.171 in4 N/A 0.188 in4 N/A 0.248 in4
Gross Section Properties (Sx) N/A 0.084 in³ N/A 0.111 in³ N/A 0.137 in³ N/A 0.151 in³ N/A 0.137 in³
Gross Section Properties (Rx)1 N/A 1.017 in N/A 1.014 in N/A 1.011 in N/A 1.010 in N/A 1.419 in
Gross Section Properties (ly) N/A 0.022 in4 N/A 0.029 in4 N/A 0.035 in4 N/A 0.039 in4 N/A 0.025 in4
Gross Section Properties (Ry) N/A 0.467 in N/A 0.464 in N/A 0.461 in N/A 0.459 in N/A 0.451 in
Effective Section Properties at Tensile Strength (Fy) (Ae) N/A 0.056 in² N/A 0.067 in² N/A 0.113 in² N/A 0.116 in² N/A 0.056 in²
Effective Section Properties at Tensile Strength (Fy) (lx) N/A 0.102 in4 N/A 0.128 in4 N/A 0.170 in4 N/A 0.187 in4 N/A 0.243 in4
Effective Section Properties at Tensile Strength (Fy) (Sx) N/A 0.070 in³ N/A 0.086 in³ N/A 0.125 in³ N/A 0.143 in³ N/A 0.091 in³
Effective Section Properties at Tensile Strength (Fy) (Mal)2 N/A 1387 in·lb N/A 2921 in·lb N/A 2475 in·lb N/A 2824 in·lb N/A 1797 in·lb
Effective Section Properties at Tensile Strength (Fy) (Mad)3 N/A 1289 in·lb N/A 2680 in·lb N/A 2515 in·lb N/A 3072 in·lb N/A 1914 in·lb
Effective Section Properties at Tensile Strength (Fy) (Vag) N/A 252 lb N/A 596 lb N/A 832 lb N/A 990 lb N/A 170 lb
Effective Section Properties at Tensile Strength (Fy) (Vanet) N/A 198 lb N/A 349 lb N/A 388 lb N/A 414 lb N/A 165 lb
Stud/Track End Reaction (Rx) N/A 40 lb N/A 96 lb N/A 106 lb N/A 103 lb N/A 53 lb
Torsional Properties (Jx1000) N/A 0.0120 in4 N/A 0.0281 in4 N/A 0.0543 in4 N/A 0.0738 in4 N/A 0.0145 in4
Torsional Properties (Cw) N/A 0.031 in6 N/A 0.040 in6 N/A 0.049 in6 N/A 0.053 in6 N/A 0.068 in6
Torsional Properties (Xo) N/A -1.000 in N/A -0.992 in N/A -0.984 in N/A -0.980 in N/A -0.873 in
Torsional Properties (m) N/A 0.598 in N/A 0.594 in N/A 0.590 in N/A 0.587 in N/A 0.540 in
Torsional Properties (Ro) N/A 1.501 in N/A 1.493 in N/A 1.485 in N/A 1.480 in N/A 1.726 in
Torsional Properties (ß) N/A 0.556 Beta N/A 0.558 Beta N/A 0.560 Beta N/A 0.561 Beta N/A 0.744 Beta
Length (Lu) N/A 31.5 in N/A 24.3 in N/A 31.4 in N/A 29.9 in N/A 31.0 in
Width N/A 2-1/2 in N/A 2-1/2 in N/A 2-1/2 in N/A 2-1/2 in N/A 3-5/8 in
Spacing N/A 12 in16 in24 in
Composite Limiting Height (L/120) at 5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 17 ft 2 in. N/A 16 ft 10 in. N/A 18 ft 5 in. N/A 20 ft 11 in. N/A 21 ft 7 in.
Composite Limiting Height (L/240) at 5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 14 ft 5 in. N/A 14 ft 10 in. N/A 16 ft 0 in. N/A 16 ft 7 in. N/A 17 ft 11 in.
Composite Limiting Height (L/360) at 5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 12 ft 7 in. N/A 13 ft 1 in. N/A 14 ft 0 in. N/A 14 ft 6 in. N/A 15 ft 8 in.
Composite Limiting Height (L/120) at 7.5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 14 ft 6 in. (Adjacent to the height value indicates that flexural stress controls the allowable wall height.) N/A 15 ft 0 in. N/A 16 ft 2 in. N/A 18 ft 3 in. N/A 15 ft 10 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/240) at 7.5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 12 ft 8 in. N/A 13 ft 0 in. N/A 14 ft 0 in. N/A 14 ft 6 in. N/A 15 ft 8 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/360) at 7.5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 11 ft 0 in. N/A 11 ft 5 in. N/A 12 ft 3 in. N/A 12 ft 8 in. N/A 13 ft 8 in.
Composite Limiting Height (L/120) at 10 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 12 ft 7 in. (Adjacent to the height value indicates that flexural stress controls the allowable wall height.) N/A 13 ft 9 in. N/A 14 ft 9 in. N/A 16 ft 7 in. N/A 11 ft 10 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/240) at 10 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 11 ft 6 in. N/A 11 ft 10 in. N/A 12 ft 8 in. N/A 13 ft 2 in. N/A 11 ft 10 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/360) at 10 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 10 ft 0 in. N/A 10 ft 4 in. N/A 11 ft 2 in. N/A 11 ft 6 in. N/A 11 ft 10 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/120) at 5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 15 ft 10 in. (Adjacent to the height value indicates that flexural stress controls the allowable wall height.) N/A 16 ft 8 in. N/A 17 ft 6 in. N/A 19 ft 0 in. N/A 17 ft 9 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/240) at 5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 13 ft 7 in. N/A 13 ft 9 in. N/A 15 ft 0 in. N/A 15 ft 1 in. N/A 16 ft 8 in.
Composite Limiting Height (L/360) at 5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 11 ft 10 in. N/A 12 ft 1 in. N/A 13 ft 2 in. N/A 13 ft 2 in. N/A 14 ft 7 in.
Composite Limiting Height (L/120) at 7.5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 13 ft 0 in. N/A 14 ft 7 in. N/A 15 ft 4 in. N/A 16 ft 7 in. N/A 11 ft 10 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/240) at 7.5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 11 ft 10 in. N/A 12 ft 0 in. N/A 13 ft 1 in. N/A 13 ft 2 in. N/A 11 ft 10 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/360) at 7.5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 10 ft 4 in. N/A 10 ft 7 in. N/A 11 ft 6 in. N/A 11 ft 6 in. N/A 11 ft 10 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/120) at 10 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 11 ft 2 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.) N/A 13 ft 3 in. N/A 13 ft 11 in. N/A 15 ft 1 in. N/A 8 ft 11 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/240) at 10 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 10 ft 9 in. N/A 10 ft 11 in. N/A 11 ft 11 in. N/A 12 ft 0 in. N/A 8 ft 11 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/360) at 10 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 9 ft 3 in. N/A 9 ft 7 in. (Adjacent to the height value indicates that flexural stress controls the allowable wall height.) N/A 10 ft 6 in. N/A 10 ft 6 in. N/A 8 ft 11 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/120) at 5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 13 ft 4 in. (Adjacent to the height value indicates that flexural stress controls the allowable wall height.) N/A 14 ft 10 in. N/A 15 ft 9 in. N/A 16 ft 7 in. N/A 11 ft 10 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/240) at 5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 12 ft 3 in. N/A 12 ft 3 in. N/A 13 ft 5 in. N/A 13 ft 2 in. N/A 11 ft 10 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/360) at 5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 10 ft 8 in. N/A 10 ft 9 in. N/A 11 ft 10 in. N/A 11 ft 6 in. N/A 11 ft 10 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/120) at 7.5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 9 ft 11 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.) N/A 13 ft 0 in. N/A 13 ft 9 in. N/A 14 ft 6 in. N/A 7 ft 11 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/240) at 7.5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 9 ft 11 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.) N/A 10 ft 8 in. N/A 11 ft 9 in. N/A 11 ft 6 in. N/A 7 11 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/360) at 7.5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 9 ft 1 in. N/A 9 ft 3 in. N/A 10 ft 4 in. N/A 10 ft 1 in. N/A 7 ft 11 in. (Adjacent to the height value indicates that shear/end reaction controls the allowable wall height.)
Composite Limiting Height (L/120) at 10 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A N/A 11 ft 9 in. N/A 12 ft 6 in. N/A 13 ft 2 in. N/A
Composite Limiting Height (L/240) at 10 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A N/A 9 ft 8 in. N/A 10 ft 8 in. N/A 10 ft 6 in. N/A
Composite Limiting Height (L/360) at 10 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A N/A 8 ft 2 in. N/A 9 ft 3 in. N/A 9 ft 0 in. N/A
Notes for Composite Limiting Height N/A
  • Allowable composite limiting heights were determined in accordance with ICC-ES AC86-2012.
  • Additional composite wall testing and analysis requirements of the SFIA Code Compliance Certification Program were observed.
  • In accordance with current building codes and AISI design standards, the 1/3 Stress Increase for strength was not used.
  • The composite limiting heights provided in the tables are based on a single layer of 5/8" Type X Gypsum Board complying with ASTM C1396 and from the following manufacturers: American Gypsum, CertainTeed, Georgia Pacific, Continental, National Gypsum or USG.
  • The gypsum board must be applied full height in the vertical orientation to each stud flange and installed in accordance with ASTM C754 using minimum No. 6 Type S fine thread Drywall bugle head screws spaced as listed below:
    • Screws spaced a maximum of 16 inch on-center to framing members spaced at 12 inch on-center.
    • Screws spaced a maximum of 12 inch on-center to framing members spaced at 16 inch or 24 inch on-center.
    • Screws spaced 16 inch on-center to the bottom track only.
  • No fasteners are required for attaching the stud to the track except as detailed in ASTM C754.
  • Stud end bearing must be a minimum of 1 inch.
  • The minimum overlap of the TSO (Outer Stud) and TSE (Inner Stud) must be 8 inches and the maximum un-lapped length of the TSE must be 4 inches.
Fully Braced Non-Composite Limiting Height (L/120) at 5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 13 ft 1 in. N/A 15 ft 0 in. N/A 16 ft 5 in. N/A 17 ft 0 in. N/A 15 ft 6 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/240) at 5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 11 ft 0 in. N/A 11 ft 11 in. N/A 13 ft 1 in. N/A 13 ft 6 in. N/A 14 ft 9 in.
Fully Braced Non-Composite Limiting Height (L/360) at 5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 9 ft 8 in. N/A 10 ft 5 in. N/A 11 ft 5 in. N/A 11 ft 9 in. N/A 12 ft 10 in.
Fully Braced Non-Composite Limiting Height (L/120) at 7.5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 10 ft 8 in. (Web stiffeners are required at the stud/track connection.) N/A 14 ft 9 in. N/A 14 ft 10 in. N/A 15 ft 10 in. N/A 12 ft 8 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/240) at 7.5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 10 ft 8 in. (Web stiffeners are required at the stud/track connection.) N/A 11 ft 8 in. N/A 12 ft 10 in. N/A 13 ft 3 in. N/A 12 ft 8 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/360) at 7.5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 9 ft 6 in. N/A 10 ft 3 in. N/A 11 ft 3 in. N/A 11 ft 7 in. N/A 12 ft 8 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/120) at 10 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 9 ft 3 in. (Web stiffeners are required at the stud/track connection.) N/A 13 ft 4 in. N/A 12 ft 10 in. N/A 13 ft 9 in. N/A 10 ft 11 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/240) at 10 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 9 ft 3 in. (Web stiffeners are required at the stud/track connection.) N/A 10 ft 8 in. N/A 11 ft 8 in. N/A 12 ft 1 in. N/A 10 11 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/360) at 10 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 8 ft 7 in. (Web stiffeners are required at the stud/track connection.) N/A 9 ft 3 in. N/A 10 ft 2 in. N/A 10 ft 6 in. N/A 10 ft 11 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/120) at 5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 11 ft 4 in. (Web stiffeners are required at the stud/track connection.) N/A 13 ft 7 in. N/A 14 ft 11 in. N/A 15 ft 5 in. N/A 13 ft 5 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/240) at 5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 10 ft 0 in. N/A 10 ft 10 in. N/A 11 ft 10 in. N/A 12 ft 3 in. N/A 13 ft 4 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/360) at 5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 8 ft 9 in. N/A 9 ft 5 in. N/A 10 ft 4 in. N/A 10 ft 8 in. N/A 11 ft 8 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/120) at 7.5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 9 ft 3 in. (Web stiffeners are required at the stud/track connection.) N/A 13 ft 4 in. N/A 12 ft 10 in. N/A 13 ft 9 in. N/A 10 ft 11 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/240) at 7.5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 9 ft 3 in. (Web stiffeners are required at the stud/track connection.) N/A 10 ft 8 in. N/A 11 ft 8 in. N/A 12 ft 1 in. N/A 10 ft 11 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/360) at 7.5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 8 ft 7 in. (Web stiffeners are required at the stud/track connection.) N/A 9 ft 3 in. N/A 10 ft 2 in. N/A 10 ft 6 in. N/A 10 ft 11 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/120) at 10 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 8 ft 0 in. (Web stiffeners are required at the stud/track connection.) N/A 11 ft 7 in. N/A 11 ft 1 in. N/A 11 ft 11 in. N/A 9 ft 6 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/240) at 10 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 8 ft 0 in. (Web stiffeners are required at the stud/track connection.) N/A 9 ft 8 in. N/A 10 ft 7 in. N/A 10 ft 11 in. N/A 9 ft 6 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/360) at 10 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 7 ft 10 in. (Web stiffeners are required at the stud/track connection.) N/A 8 ft 5 in. N/A 9 ft 3 in. N/A 9 ft 7 in. N/A 9 ft 6 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/120) at 5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 9 ft 3 in. (Web stiffeners are required at the stud/track connection.) N/A 11 ft 11 in. N/A 1Z 10 in. N/A 13 ft 6 in. N/A 10 ft 11 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/240) at 5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 8 ft 9 in. (Web stiffeners are required at the stud/track connection.) N/A 9 ft 5 in. N/A 10 ft 4 in. N/A 10 ft 8 in. N/A 10 ft 11 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/360) at 5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 7 ft 8 in. (Web stiffeners are required at the stud/track connection.) N/A 8 ft 3 in. N/A 9 ft 1 in. N/A 9 ft 4 in. N/A 10 ft 2 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/120) at 7.5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 7 ft 7 in. (Web stiffeners are required at the stud/track connection.) N/A 10 ft 11 in. N/A 10 ft 6 in. N/A 11 ft 2 in. N/A 8 ft 11 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/240) at 7.5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 7 ft 7 in. (Web stiffeners are required at the stud/track connection.) N/A 9 ft 3 in. N/A 10 ft 2 in. N/A 10 ft 6 in. N/A 8 ft 11 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/360) at 7.5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 7 ft 6 in. (Web stiffeners are required at the stud/track connection.) N/A 8 ft 1 in. N/A 8 ft 11 in. N/A 9 ft 2 in. N/A 8 ft 11 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/120) at 10 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 6 ft 7 in. (Web stiffeners are required at the stud/track connection.) N/A 9 ft 5 in. N/A 9 ft 1 in. N/A 9 ft 8 in. N/A 7 ft 9 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/240) at 10 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 6 ft 7 in. (Web stiffeners are required at the stud/track connection.) N/A 8 ft 5 in. N/A 9 ft 1 in. N/A 9 ft 7 in. N/A 7 ft 9 in. (Web stiffeners are required at the stud/track connection.)
Fully Braced Non-Composite Limiting Height (L/360) at 10 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 6 ft 7 in. (Web stiffeners are required at the stud/track connection.) N/A 7 ft 4 in. N/A 8 ft 1 in. N/A 8 ft 4 in. N/A 7 ft 9 in. (Web stiffeners are required at the stud/track connection.)
Notes for Fully Braced Non-Composite Limiting Height N/A
  • Heights are based on AISI S100-07 with S2-10 Supplement, and AISI S100-12 Specification using steel properties alone.
  • Compression flange must be continuously braced.
  • End bearing must be 1 inch.
  • The minimum overlap of the TSO (Outer Stud) and TSE (inner Stud) must be 8 inches and the maximum un-lapped length of the TSE must be 4 inches.
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/120) at 5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 12 ft 7 in. N/A 15 ft 0 in. N/A 16 ft 5 in. N/A 17 ft 0 in. N/A 14 ft 3 in.
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/240) at 5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 11 ft 0 in. N/A 11 ft 11 in. N/A 13 ft 1 in. N/A 13 ft 6 in. N/A 14 ft 3 in.
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/360) at 5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 9 ft 8 in. N/A 10 ft 5 in. N/A 11 ft 5 in. N/A 11 ft 9 in. N/A 12 ft 10 in.
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/120) at 7.5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 10 ft 3 in. (Web stiffeners are required at the stud/track connection.) N/A 13 ft 2 in. N/A 13 ft 9 in. N/A 14 ft 8 in. N/A 11 ft 7 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/240) at 7.5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 10 ft 3 in. (Web stiffeners are required at the stud/track connection.) N/A 11 ft 8 in. N/A 12 ft 10 in. N/A 13 ft 3 in. N/A 11 ft 7 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/360) at 7.5 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 9 ft 6 in. N/A 10 ft 3 in. N/A 11 ft 3 in. N/A 11 ft 7 in. N/A 11 ft 7 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/120) at 10 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 8 ft 11 in. (Web stiffeners are required at the stud/track connection.) N/A 11 ft 5 in. N/A 11. ft 11 in. N/A 12 ft 9 in. N/A 10 ft 1 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/240) at 10 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 8 ft 11 in. (Web stiffeners are required at the stud/track connection.) N/A 10 ft 8 in. N/A 11 ft 8 in. N/A 12 ft 1 in. N/A 10 ft 1 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/360) at 10 Pounds Per Square Foot (PSF) Pressure and 12 Inch (in) Spacing N/A 8 ft 7 in. (Web stiffeners are required at the stud/track connection.) N/A 9 ft 3 in. N/A 10 ft 2 in. N/A 10 ft 6 in. N/A 10 ft 1 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/120) at 5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 12 ft 7 in. N/A 15 ft 0 in. N/A 16 ft 5 in. N/A 17 ft 0 in. N/A 14 ft 3 in.
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/240) at 5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 11 ft 0 in. N/A 11 ft 11 in. N/A 13 ft 1 in. N/A 13 ft 6 in. N/A 14 ft 3 in.
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/360) at 5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 9 ft 8 in. N/A 10 ft 5 in. N/A 11 ft 5 in. N/A 11 ft 9 in. N/A 12 ft 10 in.
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/120) at 7.5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 10 ft 3 in. (Web stiffeners are required at the stud/track connection.) N/A 13 ft 2 in. N/A 13 ft 9 in. N/A 14 ft 8 in. N/A 11 ft 7 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/240) at 7.5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 10 ft 3 in. (Web stiffeners are required at the stud/track connection.) N/A 11 ft 8 in. N/A 12 ft 10 in. N/A 13 ft 3 in. N/A 11 ft 7 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/360) at 7.5 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 9 ft 6 in. N/A 10 ft 3 in. N/A 11 ft 3 in. N/A 11 ft 7 in. N/A 11 ft 7 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/120) at 10 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 8 ft 11 in. (Web stiffeners are required at the stud/track connection.) N/A 11 ft 5 in. N/A 11. ft 11 in. N/A 12 ft 9 in. N/A 10 ft 1 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/240) at 10 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 8 ft 11 in. (Web stiffeners are required at the stud/track connection.) N/A 10 ft 8 in. N/A 11 ft 8 in. N/A 12 ft 1 in. N/A 10 ft 1 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/360) at 10 Pounds Per Square Foot (PSF) Pressure and 16 Inch (in) Spacing N/A 8 ft 7 in. (Web stiffeners are required at the stud/track connection.) N/A 9 ft 3 in. N/A 10 ft 2 in. N/A 10 ft 6 in. N/A 10 ft 1 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/120) at 5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 8 ft 11 in. (Web stiffeners are required at the stud/track connection.) N/A 11 ft 5 in. N/A 11 ft 11 in. N/A 12 ft 9 in. N/A 10 ft 1 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/240) at 5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 8 ft 9 in. (Web stiffeners are required at the stud/track connection.) N/A 9 ft 5 in. N/A 10 ft 4 in. N/A 10 ft 8 in. N/A 10 ft 1 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/360) at 5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 7 ft 8 in. (Web stiffeners are required at the stud/track connection.) N/A 8 ft 3 in. N/A 9 ft 1 in. N/A 9 ft 4 in. N/A 10 ft 1 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/120) at 7.5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 7 ft 3 in. (Web stiffeners are required at the stud/track connection.) N/A 9 ft 4 in. N/A 9 ft 9 in. N/A 10 ft 5 in. N/A 8 ft 3 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/240) at 7.5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 7 ft 3 in. (Web stiffeners are required at the stud/track connection.) N/A 9 ft 3 in. N/A 9 ft 9 in. N/A 10 ft 5 in. N/A 8 ft 3 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/360) at 7.5 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 7 ft 3 in. (Web stiffeners are required at the stud/track connection.) N/A 8 ft 1 in. N/A 8 ft 11 in. N/A 9 ft 2 in. N/A 8 ft 3 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/120) at 10 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 6 ft 3 in. (Web stiffeners are required at the stud/track connection.) N/A 8 ft 1 in. N/A 8 ft 5 in. N/A 9 ft 0 in. N/A 7 ft 1 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/240) at 10 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 6 ft 3 in. (Web stiffeners are required at the stud/track connection.) N/A 8 ft 1 in. N/A 8 ft 5 in. N/A 9 ft 0 in. N/A 7 ft 1 in. (Web stiffeners are required at the stud/track connection.)
48 Inch (in) O.C. Bracing Non-Composite Limiting Height (L/360) at 10 Pounds Per Square Foot (PSF) Pressure and 24 Inch (in) Spacing N/A 6 ft 3 in. (Web stiffeners are required at the stud/track connection.) N/A 7 ft 4 in. N/A 8 ft 1 in. N/A 8 ft 4 in. N/A 7 ft 1 in. (Web stiffeners are required at the stud/track connection.)
Notes for 48 Inch (in) O.C. Bracing Non-Composite Limiting Height N/A
  • Heights are based on AISI S100-07 with S2-10 Supplement, and AISI S100-12 Specification using steel properties alone.
  • Above listed Non-Composite Limiting Heights are applicable when the unbraced length is less than or equal to (Lu) as listed in section properties.
  • End bearing must be 1 inch.
  • The minimum overlap of the TSO (Outer Stud) and TSE (Inner Stud) must be 8 inches and the maximum un-lapped length of the TSE must be 4 inches.
Compliance N/A TRAKLOC®’s ICC-ES Report # ESR-1464 is in compliance with:
  • 2015 and 2012 International Building Code® (IBC)
  • 2016 California Building Code (CBC)
  • 22017 Florida Building Code (FBC)
United States (U.S.) and Foreign Patents N/A The TRAKLOC® product line provided by ClarkDietrich® Building Systems is licensed under the following U.S. and Foreign Patents:

U.S. Patent No. 7,223,043
U.S. Patent No. 7,594,311
U.S. Patent No. 8,061,099
U.S. Patent No. 8,074,416
Japan Patent No. 4934868
Japan Patent No. 5156889
Australia Patent No. 2006201344
Australia Patent No. 2005332657
TRAKLOC® Track N/A TRAKLOC® track has two unique features. The most obvious feature of the TRAKLOC® track is the V-groove rolled into the flanges of the track to match the swaged ends of the TRAKLOC® stud. Next, are the dimples pressed into the center of the web. Together, the V-groove and the dimples provide a positive connection between stud and track without the need for mechanical fasteners.

TRAKLOC® track standard length is 10'-0". Shorter lengths are available for non-standard conditions.
Storage Requirements N/A TRAKLOC® is a dynamic system consisting of two moving parts. To maintain the telescoping feature of this system, it is important to store TRAKLOC® studs indoors, free of excessive dust and airborne particulates.
Head-of-Wall Deflection Required ? N/A Elevator Studs are not for deflection by themselves. However, deflection can be achieved by using MaxTrak® slotted deflection track or deep leg track with lateral bracing at the head of the wall.
Other Benefits Include N/A
  • Significant productivity gains. Adjustable length studs accommodate variances in the deck height without the need to measure or cut studs on the jobsite.
  • Increased safety. Less measuring and cutting results in less trips up and down ladders or scaffolds and reduced use of chop saws.
  • Noise reduction and cleaner jobsite. Eliminating chop saw use allows work to continue during the day in occupied buildings and may reduce requirement for after-hours fire watch. Less cutting results in less scrap and cleaner safer jobsite.
Features and Benefits N/A
  • Available in 18mil (25ga) 33ksi, 24mil (20EQ) 57ksi, 30mil (20ga DW) 33ksi and 33mil (20ga) 33ksi.
  • Available in 2-1/2", 3-5/8", 4" and 6".
  • For use in non-load-bearing interior walls.
  • Twists and locks into place. Studs can be installed from the ground, greatly reducing time spent climbing ladders and scaffolding.
  • Installation of TRAKLOC® is ICC-ES approved without the use of fasteners to attach the studs to the top or bottom track. ICC-ES Report # ESR-1464.
  • Significant productivity gains are possible versus conventional stud and track framing. This results in substantial installed cost savings!
  • Safer Framing System™ reduces jobsite hazards. Less time spent climbing scaffolds, ladders, lifts and bending over to install screws results in fewer job related injuries and reduced workers’ compensation costs. Less cutting of studs with noisy chop saws.
  • Allows for seismic and live-load vertical interfloor deflection in the stud, not the track. This feature eliminates the need for deflection tracks in fire-rated head-of-wall assemblies.
Addition Information N/A The TRAKLOC® deflection stud is similar to our TRAKLOC® adjustable stud, except the 12" long extension insert has slots cut out of the flanges. This allows the drywall screw to pass through the drywall and the outer portion of the stud while passing through the slot. The slot allows the drywall to be attached while still allowing for seismic and/or live-load induced inter-floor deflection at the head-of-wall joint.
  • Allows for seismic and live-load vertical inter-floor deflection
  • Tested in accordance with ASTM E-119 and ASTM E-1966
  • Approved for use in one-hour and two-hour fire-rated head-of-wall deflection assemblies
  • Intertek Warnock Hersey Design Listed
  • TRAKLOC® Deflection Stud (TLD) has a total allowable vertical (deflection) movement of 3" (1-1/2" ±)
  • Allows up to 2" of stud height adjustability
TRAKLOC® non-load bearing interior wall system is Intertek Warnock Hersey Design Listed and approved for use in both one and two-hour fire-rated head-of-wall assemblies requiring deflection in accordance with ASTM E119 and ASTM E1966. Intertek Design Listings Nos. on inside back cover.
Note N/A For SI Units: 1 inch = 25.4 mm, 1 lb = 4.45 N, 1 ksi = 6.89 N/mm².
  • Calculated properties are based on AISI S100-07 with S2-10 Supplement and AISI S100-12, North American Specification for Design of Cold-Formed Steel Structural Members.
  • Gross and torsional properties are based on full-unreduced cross section of the studs, away from punch-outs.
  • For deflection calculations, use the effective moment of inertia.
  • TSE (Inner Stud) must be 8 inches and the maximum un-lapped length of the TSE must be 4 inches.
  • 1 Stud/Track End Reaction (Rx) is the maximum end reaction (web crippling) capacity based on a minimum bearing length of 1 inch.
  • 2 The allowable moment based on local buckling (Mal) is based on the compression flange continuously braced.
  • 3 The distortional buckling moment (Mad) does not consider the beneficial effect of sheathing to rotational stiffness, Kɸ = 0.