Secondary framing – Metal Sales Secondary Framing User Manual
Page 42
PSF-42
Secondary Framing
© Metal Sales Manufacturing Corporation/ Subject to change without notice/ Effective Date 9/11
800.406.7387 (Corporate Office) • www.metalsales.us.com
Span in
Feet
Section
Max Lap - 2 Spans
Z-
8" x 2
1
/
2
"
Stress
Controlling, plf
14 Ga
16 Ga
16 Ga
12 Ga
Defl. (L/180)
Controlling, plf
16 156 240 435
205 286 470
Max Lap - 3 Spans
Stress
Controlling, plf
Defl. (L/180)
Controlling, plf
12 Ga
14 Ga
14 Ga
16 Ga
16 Ga
12 Ga
12 Ga
14 Ga
18 126 183 330
161 225 370
20 101 145 250
130 180 301
22 83 118
204 106
147
246 226
24 69 97 166 88
123
208 118 176
25 63 88 153 81 113
190 103 154
26 59 81 139 74
103
176 92 137
28 50 67 118
64 88 151 59 72 110
30 43 59 102
54 75 128 48 59 89
Notes:
1. Tabulated values are allowable superimposed loads. Purlin and all other load weights have not been subtracted from them.
2. Allowable loads have been calculated in accordance with 1996 AISI Specifications.
3. Bearing must be checked using actual bearing length and loads.
4. Wind loads can be obtained by multiplying tabulated values by 1.33.
5. Tabulated values are valid only if the compression flange of the section is adequately supported laterally.
Flange
Web
Flange
a
lloWable
u
niform
l
oads
in
P
ounds
Per
l
inear
f
ooT
Load TaBLeS For STandard ZeeS
(Symmetrical Flanges Only)
3'-6" Lap
Max Lap
Span in
Feet
Section
Max Lap - 2 Spans
Z-
8" x 3"
Stress
Controlling, plf
12 Ga
14 Ga
12 Ga
14 Ga
Defl. (L/180)
Controlling, plf
18 189
339 234
383
Max Lap - 3 Spans
Stress
Controlling, plf
Defl. (L/180)
Controlling, plf
12 Ga
14 Ga
12 Ga
14 Ga
20 150
264 188
309
22 121
211
155
252
24 100
172 128
213 197
25 92 157 117
196 174
26 84 144 107
181
103
154
28 72 121
91 154 82 123
30 62 104
78 132 67 99