Type A Deck is mostly used as a retrofit to match existing deck. This metal decking, also known as narrow rib deck, is produced in galvanized steel. 30” Cover also available.
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
80
66
55
47
41
36
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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