2 1/2" Rib Panels

The 2 1/2 " Rib panel can be used to replace conventional 2 1/2" CORRUGATED siding panels while at the same time, allowing for vastly improved carrying capabilities as well as giving more of the appearance of a building panel. This shape too can roughly approximate in 28 GA the load carrying capability of 2 1/2"CORRUGATED in 24 GA.

SECTION PROPERTIES (PER FT. OF WIDTH)
GAGE PSF I Sp Sn Down
BLK GALV (in4/ft) (in3/ft) (in3/ft) load
28 0.80 0.95 0.012 0.036 0.039
26 0.95 1.10 0.015 0.046 0.048
Span Limiting UNIFORM TOTAL LOADS IN POUNDS PER SQ. FT (DEAD & ALIVE) Gage Condition Condition
Gage
Span Condition
Limiting Condition
UNIFORM TOTAL LOADS IN POUNDS PER SQ. FT (DEAD & ALIVE)
        28           SINGLE  Stress 218 138 95 71 54 43 35
1/240 98 50 29 18 12 9 6
1/180 131 87 39 25 16 12 8
  DOUBLE  Stress 234 150 104 76 59 48 37
1/240 * 121 70 44 30 21 15
1/180 * * 94 59 40 28 20
3 0R MORE  Stress 293 187 130 96 73 58 47
1/240 186 5 55 35 23 16 12
1/180 247 127 73 48 31 22 16
        26           SINGLE  Stress 276 177 123 90 69 55 44
1/240 123 63 36 23 15 11 8
1/180 164 84 49 31 21 14 11
  DOUBLE  Stress 288 184 128 94 72 57 46
1/240   152 88 55 37 28 19
1/180   * 117 74 49 35 25
3 OR MORE  Stress 360 230 160 118 90 71 58
1/240 232 110 69 43 29 20 15
1/180 303 158 92 58 39 27 20
  *LOAD THAT PRODUCES L/240 OR L/180 DEFLECTION EXCEEDS TOTAL LOAD 24 GA and 22 GA also available.

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