Description
110 PCF Lightweight Concrete Composite Floor Deck
1-1/2” Composite deck is used when the slab and support to support distance are both moderate in size.
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Allowable Superimposed Load (ASD)
ClearSpan (ft. – in.)
Slab Thickness Gage 5’-0” 5’-6” 6’-0” 6’-6” 7’-0” 7’-6” 8’-0” 8’-6” 9’-0” 9’-6” 10’-0” 10’-6” 11’-0” 11’-6” 12’-0”
3-1/2”
(t=2.00)
26 PSF22 400 327 272 229 195 167 144 126 110 97 85 76 67 60 53
3-1/2”
(t=2.00)
26 PSF20 400 390 324 273 233 201 174 152 133 118 104 93 83 74 66
3-1/2”
(t=2.00)
26 PSF18 400 390 324 274 233 201 174 152 133 118 104 93 83 74 66
3-1/2”
(t=2.00)
26 PSF16 400 376 313 264 225 193 167 146 128 113 100 89 79 71 64
4”
(t=2.50)
30 PSF22 400 400 342 288 245 211 183 159 140 123 109 97 86 77 69
4”
(t=2.50)
30 PSF20 400 400 400 345 294 253 220 192 169 149 133 118 106 95 85
4”
(t=2.50)
30 PSF18 400 400 334 282 240 206 178 155 136 120 106 94 84 75 67
4”
(t=2.50)
30 PSF16 400 400 397 335 286 246 213 186 164 145 128 114 102 92 82
4-1/2”
(t=3.00)
35 PSF22 400 400 400 350 298 256 222 194 170 150 133 118 105 94 84
4-1/2”
(t=3.00)
35 PSF20 400 400 400 400 358 308 268 234 206 182 162 144 129 116 104
4-1/2”
(t=3.00)
35 PSF18 400 400 400 344 293 252 218 190 167 147 130 116 103 92 82
4-1/2”
(t=3.00)
35 PSF16 400 400 400 400 350 301 261 229 201 178 158 141 126 113 102
5”
(t=3.50)
39 PSF22 400 400 400 400 353 304 263 230 202 178 158 141 126 112 101
5”
(t=3.50)
39 PSF20 400 400 400 400 400 366 318 279 245 217 193 172 155 139 125
5”
(t=3.50)
39 PSF18 400 400 400 400 349 300 260 227 199 176 156 139 124 111 99
5”
(t=3.50)
39 PSF16 400 400 400 400 400 360 313 274 241 213 190 169 152 136 123
5-1/2”
(t=4.00)
44 PSF22 400 400 400 400 400 352 305 267 234 207 183 163 146 131 117
5-1/2”
(t=4.00)
44 PSF20 400 400 400 400 400 400 369 323 285 252 224 200 180 162 146
5-1/2”
(t=4.00)
44 PSF18 400 400 400 400 400 349 303 265 232 205 182 162 145 130 116
5-1/2”
(t=4.00)
44 PSF16 400 400 400 400 400 400 365 319 281 249 221 198 177 159 144
6”
(t=4.50)
49 PSF22 400 400 400 400 400 400 348 304 267 236 209 186 167 149 134
6”
(t=4.50)
49 PSF20 400 400 400 400 400 400 400 369 325 288 256 229 205 185 167
6”
(t=4.50)
49 PSF18 400 400 400 400 400 399 346 303 266 235 209 186 166 149 134
6”
(t=4.50)
49 PSF16 400 400 400 400 400 400 400 366 322 286 254 227 204 183 165
Notes:
- Load tables are calculated using Section Properties based on the steel design thickness shown in the Steel Deck Institute (SDI) design manual.
- Span length assumes clear spans. The center-to-center spacing of supports can be used for design as a conservative assumption.
Construction Span Table (Fy = 40 ksi) – 20 psf Construction Load
Lightweight Concrete (115 pcf)
SDI Maximum Unshored
ClearSpan
Total Slab Depth Gage 1 span 2 span 3 span Cantilever
Span
3-1/2”
(t=2.00)
26 PSF22 6’-1” 7’-2” 7’-2” 2’-0”
3-1/2”
(t=2.00)
26 PSF20 7’-3” 8’-7” 8’-7” 2’-6”
3-1/2”
(t=2.00)
26 PSF18 9’-1” 10’-5” 10’-8” 3’-3”
3-1/2”
(t=2.00)
26 PSF16 10’-9” 11’-9” 12’-1” 3’-11”
4”
(t=2.50)
30 PSF22 5’-10” 6’-11” 6’-11” 2’-0”
4”
(t=2.50)
30 PSF20 7’-0” 8’-3” 8’-3” 2’-6”
4”
(t=2.50)
30 PSF18 8’-8” 10’-0” 10’-2” 3’-2”
4”
(t=2.50)
30 PSF16 10’-3” 11’-3” 11’-7” 3’-10”
4-1/2”
(t=3.00)
35 PSF22 5’-7” 6’-7” 6’-7” 1’-11”
4-1/2”
(t=3.00)
35 PSF20 6’-8” 7’-10” 7’-10" 2’-5”
4-1/2”
(t=3.00)
35 PSF18 8’-3” 9’-7” 9’-8” 3’-1”
4-1/2”
(t=3.00)
35 PSF16 9’-9” 10’-9” 11’-1” 3’-8”
5”
(t=3.50)
39 PSF22 5’-5 6’-5” 6’-5” 1’-11”
5”
(t=3.50)
39 PSF20 6’-5” 7’-7” 7’-7” 2’-4”
5”
(t=3.50)
39 PSF18 7’-11” 9’-3” 9’-4” 3’-0”
5”
(t=3.50)
39 PSF16 9’-4” 10’-4” 10’-8” 3’-7”
5-1/2”
(t=4.00)
44 PSF22 5’-3” 6’-2” 6’-2” 1’-10”
5-1/2”
(t=4.00)
44 PSF20 6’-2” 7’-3” 7’-4” 2’-4”
5-1/2”
(t=4.00)
44 PSF18 7’-8” 8’-10” 8’-11” 2’-11”
5-1/2”
(t=4.00)
44 PSF16 9’-0” 9’-11” 10’-3” 3’-6”
6”
(t=4.50)
49 PSF22 5’-1” 5’-11” 6’-0” 1’-10”
6”
(t=4.50)
49 PSF20 5’-0” 7’-0” 7’-1” 2’-3”
6”
(t=4.50)
49 PSF18 7’-4” 8’-6" 8’-7” 2’-10”
6”
(t=4.50)
49 PSF16 8’-7” 9’-7” 9’-11” 3’-5”
7”
(t=5.50)
57 PSF22 4’-10” 5’-8” 5’-8” 1’-9”
7”
(t=5.50)
57 PSF20 5’-8” 6’-8” 6’-8” 2’-2”
7”
(t=5.50)
57 PSF18 6’-11” 8’-1” 8’-2” 2’-9”
7”
(t=5.50)
57 PSF16 8’-2” 9’-1” 9’-4” 3’-3”
The minimum exterior bearing length required is 1.50 inches.
The minimum interior bearing length required is 3.00 inches.
Notes:
- All construction load spans are calculated using loads and load combinations in accordance with ANSI/SDI C-2011, Section 2.4.A. The 20psf uniform load is the minimum required construction load. Specific construction operations may require greater construction loads.
- Bending Moment and Deflection formulae are in accordance with ANSI/SDI C-2011, Appendix A.
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