How to Guide

The technical content of this literature is eective 4/9/15 and supersedes all previous information.Pub. No. CD-ProSTUD 4/15
clarkdietrich.com
PHYSICAL AND STRUCTURAL PROPERTIES
ClarkDietrich ProTRAK 25 (15mil) physical and structural properties
Member
Design
thickness
(in)
Fy
(ksi)
Gross Section Properties Effective Section Properties at Fy Torsional Properties
Area
(in
2
)
Weight
(lb/ft)
Ix
(in
4
)
Rx
(in)
Iy
(in
4
)
Ry
(in)
Ae
(in
2
)
Ix
(in
4
)
Sx
(in
3
)
Ma
(in-lbs)
Vag
(lb)
Jx1000
(in
4
)
Cw
(in
6
)
Xo
(in)
Ro
(in)
β
Beta
162PDT125-15 0.0158 50 0.065 0.22 0.034 0.717 0.011 0.412 0.020 0.021 0.016 464 222 0.00542 0.006 -0.881 1.208 0.468
250PDT125-15 0.0158 50 0.079 0.27 0.085 1.038 0.013 0.400 0.020 0.059 0.024 724 143 0.00657 0.015 -0.771 1.353 0.675
362PDT125-15
1
0.0158 50 0.097 0.33 0.196 1.425 0.014 0.381 0.021 0.125 0.035 1059 98 0.00805 0.034 -0.668 1.619 0.830
400PDT125-15
1
0.0158 50 0.103 0.35 0.247 1.550 0.014 0.374 0.021 0.153 0.039 1171 89 0.00854 0.043 -0.640 1.718 0.861
600PDT125-15
2
0.0158 50 0.134 0.46 0.646 2.194 0.016 0.343 0.021 0.350 0.059 1762 59 0.01117 0.108 -0.524 2.282 0.947
162PDT200-15 0.0158 50 0.089 0.30 0.050 0.752 0.039 0.663 0.020 0.025 0.015 455 222 0.00739 0.020 -1.579 1.870 0.287
250PDT200-15 0.0158 50 0.103 0.35 0.124 1.098 0.045 0.662 0.021 0.064 0.024 720 143 0.00854 0.052 -1.431 1.921 0.445
362PDT200-15
1
0.0158 50 0.120 0.41 0.277 1.516 0.051 0.648 0.021 0.137 0.036 1063 98 0.01002 0.120 -1.282 2.088 0.623
400PDT200-15
1
0.0158 50 0.126 0.43 0.344 1.650 0.052 0.642 0.021 0.168 0.039 1178 89 0.01052 0.151 -1.240 2.162 0.671
600PDT200-15
2
0.0158 50 0.158 0.54 0.864 2.338 0.058 0.608 0.021 0.389 0.060 1789 59 0.01315 0.383 -1.058 2.638 0.839
162PDT250-15 0.0158 50 0.105 0.36 0.061 0.766 0.071 0.824 0.020 0.027 0.015 455 222 0.00871 0.038 -2.058 2.345 0.230
250PDT250-15 0.0158 50 0.118 0.40 0.150 1.123 0.082 0.831 0.021 0.066 0.024 725 143 0.00986 0.096 -1.892 2.352 0.353
362PDT250-15
1
0.0158 50 0.136 0.46 0.330 1.557 0.092 0.823 0.021 0.142 0.036 1073 98 0.01134 0.220 -1.720 2.462 0.512
400PDT250-15
1
0.0158 50 0.142 0.48 0.409 1.696 0.095 0.819 0.021 0.174 0.040 1189 89 0.01183 0.275 -1.670 2.517 0.560
600PDT250-15
2
0.0158 50 0.174 0.59 1.009 2.409 0.108 0.787 0.021 0.404 0.060 1809 59 0.01446 0.697 -1.452 2.921 0.753
Notes:
– Calculated properties are based on AISI S100-07, North American Specification for Design of Cold-Formed Steel Structural Members and AISI S220-11, North American Standard for
Cold-Formed Steel Framing—Nonstructural Members.
– Effective properties incorporate the strength increase from the cold work of forming as applicable per AISI A7.2.
– Tabulated gross properties, including torsional properties, are based on full-unreduced cross section of the studs, away from punchouts.
– Tabulated gross properties, including torsional properties, are based on full-unreduced cross section of the tracks.
– For deflection calculations, use the effective moment of inertia.
– Allowable moment includes cold work of forming.
– Allowable moment is taken as the lowest value based on local or distortional buckling. Distortional buckling strength is based on a k-phi = 0.
– Web depth for track sections is equal to the nominal height plus two times the design thickness plus the bend radius. Hems on nonstructural track sections are ignored.
1 Web-height to thickness ratio exceeds 200. Web stiffeners are required at bearing points.
2 Web-height to thickness ratio exceeds 260. Web stiffeners are required at bearing and intermediate points.
ProTRAK
®
25 DRYWALL TRACK
ClarkDietrich ProSTUD 25 (15mil) physical and structural properties
Member
Design
thickness
(in)
Fy
(ksi)
Gross Section Properties Effective Section Properties at Fy Torsional Properties
Lu (in)
Area
(in
2
)
Weight
(lb/ft)
Ix
(in
4
)
Rx
(in)
Iy
(in
4
)
Ry
(in)
Ae
(in
2
)
Ix
(in
4
)
Sx
(in
3
)
Ma
(in-lbs)
Vag
(lb)
Vanet
(lb)
Jx1000
(in
4
)
Cw
(in
6
)
Xo
(in)
Ro
(in)
β
Beta
162PDS125-15 0.0158 50 0.071 0.24 0.033 0.688 0.015 0.466 0.033 0.030 0.024 719 232 104 0.00589 0.009 -1.088 1.369 0.368 24.8
250PDS125-15 0.0158 50 0.085 0.29 0.088 1.020 0.018 0.459 0.033 0.080 0.044 1198 147 141 0.00704 0.023 -0.959 1.473 0.576 24.5
362PDS125-15
1
0.0158 50 0.102 0.35 0.206 1.420 0.020 0.442 0.034 0.190 0.056 1689 100 100 0.00852 0.051 -0.837 1.706 0.760 24.3
400PDS125-15
1
0.0158 50 0.108 0.37 0.260 1.549 0.021 0.436 0.034 0.233 0.062 1870 90 90 0.00901 0.064 -0.803 1.798 0.800 24.2
600PDS125-15
2
0.0158 50 0.140 0.48 0.683 2.209 0.023 0.404 0.034 0.537 0.105 2781 60 60 0.01164 0.161 -0.666 2.343 0.919 23.6
ProSTUD
®
25 DRYWALL STUD
4