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| Designation (Width x lbs/ft) | Nominal Size Depth x Width (inches x inches)) | Allowable Uniform Load (lbs) | |||||||||
| Span (ft) | |||||||||||
| 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | ||
| W8 x 10 | 8 x 4 | 15600 | 12500 | 10400 | 8900 | 7800 | 6900 | ||||
| W8 x 13 | 8 x 4 | 19900 | 15900 | 13300 | 11400 | 9900 | 8800 | ||||
| W8 x 15 | 8 x 4 | 23600 | 18900 | 15800 | 13500 | 11800 | 10500 | ||||
| W8 x 18 | 8 x 5 1/2 | 30400 | 24300 | 20300 | 17400 | 15200 | 13500 | ||||
| W8 x 21 | 8 x 5 1/2 | 36400 | 29100 | 24300 | 20800 | 18200 | 16200 | ||||
| W8 x 24 | 8 x 6 1/2 | 41800 | 33400 | 27800 | 23900 | 20900 | 18600 | ||||
| W8 x 28 | 8 x 6 1/2 | 48600 | 38900 | 32400 | 27800 | 24300 | 21600 | ||||
| W10 x 22 | 10 x 5 3/4 | 30900 | 26500 | 23200 | 20600 | 18600 | 16900 | ||||
| W10 x 26 | 10 x 5 3/4 | 37200 | 31900 | 27900 | 24800 | 22300 | 20300 | ||||
| W10 x 30 | 10 x 5 3/4 | 43200 | 37000 | 32400 | 28800 | 25900 | 23600 | ||||
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