Type B Deck

Stainless, Galvanized, Aluminum, Painted

The Type B Wide Rib is the industry standard for industrial roofing and is as popular for floor decking. It can be produced in galvanized steel, prime painted steel, aluminum and stainless steel. All lengths are produced to custom requirements. Standard width is 36" coverage, limited availability in 30" coverage. This product has excellent load carrying capabilities. The wide rib allows for a narrow top opening, which is desired when rigid insulation is to be used on top of the deck.

SECTION PROPERTIES (Fy=33 ksi)
Gage Design Thickness Weight (psf) Ptd Weight (psf) Galv Ip(In4) In(In4) Sp(In3) Sn(In3)
22 .0295 1.58 1.61 0.1591 0.1891 0.1877 0.196
20 .0358 1.98 2.04 0.2067 0.2305 0.2327 0.2458
18 .0474 2.60 2.70 0.2981 0.3061 0.3166 0.3263
16 .0598 3.10 3.20 0.3869 0.3869 0.4063 0.4104
14 .0747 4.00 4.10 0.4845 0.4845 0.51 0.51
12 .1046 5.80 5.95 0.6819 0.6819 0.707 0.707
Section Properties calculated in accordance with AISI specifications.
Gage Span Cond Max SDI Const Sp Uniform Total Load in Pounds Per Square Foot (Dead and Live)
5’-0” 5’-6” 6’-0” 6’-6” 7’-0” 7’-6” 8’-0” 8’-6” 9’-0” 9’-6” 10’-0”
22
One
5’-9” 92 72 57 47 40 34 30



20 6’-6” 116 90 71 58 48 41 36 31


18 7’-9” 162 124 98 79 65 55 47 41 36 32
16 8’-9”
155 122 98 80 67 57 49 43 38 34
14 9’-8”
192 150 120 98 82 69 59 51 45 40
12 11’-8”


165 134 111 93 79 68 59 52
22
Two
6’-8” 100 83
69 59 51 44 39 34 31
20 7’-7” 123 102 85 73 63 54 48 42 38 34 30
18 9’-1” 165 136 114 97 84 73 64 57 50 45 41
16 10’-3”
172 145 123 106 92 81 72 64 57 52
14 11’-6”

180 153 132 115 101 89 80 71 64
12 13’-7”



183 159 140 124 110 99 89
22
Three or More
6’-8” 125 104 87 74 64 55 48 41 36 32
20 7’-7” 154 127 107 91 78 68 59 51 44 39 35
18 9’-1”
170 143 122 105 91 80 68 59 52 46
16 10’-3”

181 154 133 116 99 84 73 63 55
14 11’-6”


191 165 144 122 103 88 77 67
12 13’-7”




199 168 141 120 104 90
1. Load tables are calculated using section properties based on the steel design thichness shown in the Steel Deck Institute (SDI) design manual.
2. Loads shown in the shaded areas are governed by the live load deflection not in excess of 1/240 of the span. A dead load of 10 psf had been included.

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