Loading Tables
Roof Load Capacity Table
Self-Framing Shed Type Building (Imperial)
  Allowable Load (lbs/ft2)
Span (ft) .024(24GA.) .030(22GA). .036(20GA) .048(18GA.)
1:12 Slope 16 x 3 16 x 3 14 x 4 16 x 3 14 x 4 16 x 3 14 x 4
  S D S D S D S D S D S D S D
8'0" 51 104 86 129 135 273 103 153     133 199    
9'0" 40 73 68 90 106 192 81 107 137 228 105 140    
10'0" 32 53 55 66 86 140 65 78 110 166 84 102 144 218
11'0" 26 40 45 50 70 105 53 59 91 125 69 77 119 163
12'0" 22 31 37 38 59 81 44 45 76 96 58 59 99 126
13'0" 18 24 30 30 50 64 36 36 64 76 46 46 84 99
14'0'     24 24 43 51 29 29 55 61 37 37 72 79
15'0"       37 41 23 23 48 49 30 30 62 64
16'0"       32 34     41 41 25 25 53 53
17'0"       28 28     34 34 21 21 44 44
18'0"       24 24     29 29   37 37
19'0"             24 24   32 32
20'0"                         27 27
Note: Above Load Tables Are Based on:
* Uniformly distributed load
* Design in accordance with CSA specification S136
* Material to ASTM A446 grade B minimum yield point 255 Mpa (37000PSI)
* Figures in row "S" denote total loading for allowable working stress
* Figures in row "D" denote total loading for allowable deflection of 1/180th of span
* Heavier loads can be met by custom forming of panel rib depths (subject to engineering)
* The intent of this data is to aid in the preliminary design and estimating for building requirements
* Other factors, including local and regional building codes must also be met