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-, - ,~ ~._-- .. .. MAXIMUM ROOF BEAM SPANS -= IN DECIMAL FEET SCREEN ROOF I SCREEN WALLS EXAMPLE: WIND 110 MPH DEFLECTION Ll60 POOL ENCLOSURE < -----....1 COLUMN USED ,.---..--..- > a 8 . WALL a ROOF (F) (G) (H) (I) (J) (K) (L) (M) (N) BEAM SPACING 2x3 2x3 2x4 2x4 2x4 2x6 2x7 2x8 2x9 &1 USED PB SMS PB SMS 5MB 5MB 5MB 5MB 5MB 4'-()" 18.42 19.08 19.25 19.25 19.25 19.25 19.25 19.25 19.25 D (H) 5'-0' 17.08 17.58 17.75 17.75 17.75 17.75 17.75 17.75 17.75 III 2x4 6'-()" 16.08 16.58 16.75 16.58 16.75 16.75 16.75 16.75 16.75 PB 7' -0' 15.25 15.58 15.75 15.75 15.75 15.75 15.75 15.75 15.75 8'-()" . , "..14.58 14.92 15.08 15.08 15.08 15.08 15.08 15.08 15.08 &111 g'-()" 13.92 14.42 14.42 14.42 14.42 14.42 14.42 14.42 14.42 4'-()" 21.08 21.75 21. 92 21.75 23.42 23.42 23.42 23.42 23.42 Is: (J) S'-()" 20.08 20.08 20.25 20.08 21.58 21.58 21.58 21.58 21.58 -= 2x4 6'-()" 18.42 18.75 16.92 16.92 20.25 20.25 20.25 20.25 20.25 5MB 7'-()" 17.42 17.92 17.92 17.92 19.06 19.08 19.08 19.08 19.08 IE: 8'-0' 16.75 17.08 17.08 17.08 18.25 18.25 18.25 18.25 18.25 , 1 I 9'-0' 16.08 16,42 16.42 16.42 17.42 17.42 17.42 17.42 17.42 4'-0' 28.08 28.58 28.75 28.58 29.92 31. 92 31. 92 31. 92 31.92 lie: ;tl (K) 5'-0' 26.08 26.42 26,58 26.58 27.58 29.25 29.25 29.25 29.25 11-- " 2X6 6'-0' 24.58 24,92 24.92 24.92 25.92 27.42 27.42 27.42 27.42 5MB 7' -0- 23.25 23,58 23.75 23.58 24.42' 25.92 25.92 25.92 25.92 8'-0' 22.25 22.58 22.58 22.58 23.42. . 24.58 24.58 24.58 24.58 lac , 9'-0- 21.42 21.58 21,75 21.75 22.42 23.58 23.58 23.58 23.58 tar: . 4'-0' 31.58 32.08 32.08 32.08 33.08 34.92 35.92 35.92 35.92 Is: ; (L) 5'-()" 29.42 29.58 29.75 29.75 30.58 32.25 33.08 33.08 33.08 2x7 6'-0' 27.58 27.92 27.92 27.92 28. 75~ 30.08' 30.92 30.92 30.92 lie 5MB 7'-0' 26.25 26.42 26.58 26.58" 27~25 28.42 29.25 29.25 29.25 : I 8'-0' 25.08 25.25 25.42 25.42 26.08 27.08 27.75 27.75 27.75 9'-0' 23.92 24.25 24.25 24.25 24.92 26.08 26.58 26.58 26.58 .- , , , 4'-0' 38.25 38.58 38.58 38.58 39.42 40.92 41.75 44.25 44.25 III: eM) 5'-0' 35.42 35.75 35.75 35.75 36.58 37.75 38.58 40.75 40.75 2x8 6'-0' 33.42 33.58 33.75 33.58 34.25 35.42 36.08 37.92 37.92 5MB 7'.0' 31.75 31.92 31.92 31.92 3~58 33.58 34.08 35.92 35.92 /-= I 8'-0' 30.25 30.58 30.58 30.58 31.08 32.08 32.58 34.08 34.08 9'-0' 29.08 29.25 29.42 29.42 29.92 30.75 31.25 32.75 32.75 1-= , 4'-0' 41.92 42.25 42.25 42.25 43.08 44.42 45.08 47.42 48.42 (N) 5'-()" 38.92 39.08 39.25 39.08 39.92 41.08 41.75 43.58 44.58 -= 2x9 6'-0' 36.58 36.75 36.92 36.75 37.42 38.42 39.08 40.75 41.58 Ie 5MB 7' -0' 34.92 34.92 34.92 34.92 35.58 36.42 . 36.92 38.58 39.25 8'-0- 33.25 33.42 33.42 33.42 33.92 34.75 35.25 36.75 37.42 9'-0' 31. 92 32.08 32.08 32.08 32.58 .~ 33.42 33.92 35.08 35.75 1-= INTERPOLATION BETWEEN VALUES IS PERMISSIBLE" . II: . I -= a:: I 52 ~ ALUMINUM STRUCTURES MASTER PLAN ,Ie: '" ~ ENGltEERING, INC. @ COPYR)GHT At. INC, 1994 ,...,. ..~-. - - - - , ~. /.:,: t"" "., ' } . ,'tf .. - ~..