Type A Deck

Type A Deck is mostly used as a retrofit to match existing deck. This meal decking, also known as narrow rib deck, is produced in galvanized steel.

Section Properties (Fy=33 ksi)
Gage Design
Thickness		 Weight (psf) In(In4) In(In4) Sp(1n3) sn(1n3) Download
Ptd Galv
22 0.0295 1.65 1.70 0.144 0.143 0.132 0.131
20 0.0358 2.09 2.15 0.175 0.175 0.160 0.1-59
18 0.0474 2.71 2.80 0.232 0.232 0.211 0.211
16 0.0598 3.30 3.40 0.294 0.294 0.266 0.266
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)
4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 7'-0" 7'-6" 8'-0" 8'-6" 9'-0"
22 One 5'-5" 108 85 69 57 48 41 35 30      
20 6'-0" 131 104 84 69 58 49 43 37 32    
18 6'-11" 174 137 111 92 77 65 54 46 39 34 30
16 7`-9"   173 140 116 97 0 - 55 47 41 -
22 Two 6'-4" 108 85 69 -57 48 40 35 30      
20 7'-0" 131 103 84 69 58 49 42 37 32    
18 8'-1" 174 137 111 92 77 66 56 49 43 38 34
16 9'-1"   173 140 116 97 83 71 62 54 48 43
22 Three or More  6'-4" 135 106 86 71 60 51 44 38 33    
20 7'-0" 164 129 105 86 73 62 53 46 41 36 32
18 8'-1 "   172 139 115 96 82 71 62 54 , 48 43
16 9'-1"     175 145 122 104 89 78 68 60 54
Notes:
1. Load tables are calculated using section properties based on the steel design thickness 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 has been included.

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