No Storage Attic | Ceiling Joist 10# | 10# Live Load | 5# Dead Load |
| | Doug Fir-L SS (8-20) | Doug Fir #2 (22-28) | S-P-F #2 (8-20) | S-P-F #3 (8-20) |
| 2x4 | 12 | 16 | 24 | | | | | | | 11' 10" | 10' 9" | 9' 5" | 10' 10" | 9' 5" | 7' 8" |
| 2x6 | 12 | 16 | 24 | | | | 19' 6" | 17' 8" | 14' 10" | 18' 8" | 16' 11" | 14' 9" | 15' 10" | 13' 9" | 11' 2" |
| 2x8 | 12 | 16 | 24 | 27' 2" | 24' 8" | 21' 7" | 25' 8" | 23' 0" | 18' 9" | | | | | | |
| 2x10 | 12 | 16 | 24 | 34' 8" | 31' 6" | 27' 6" | 30' 7" | 27' 8" | 22' 7" | | | | | | |
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Limited Storage Attic | Ceiling Joist 10# | 10# Live Load | 5# Dead Load |
| | Doug Fir-L SS (8-20) | Doug Fir #2 (22-28) | S-P-F #2 (8-20) | S-P-F #3 (8-20) |
| 2x4 | 12 | 16 | 24 | | | | | | | 9' 5" | 8' 7" | 7' 2" | 7' 8" | 6' 8" | 5' 5" |
| 2x6 | 12 | 16 | 24 | | | | 14' 10" | 12' 10" | 10' 6" | 14' 9" | 12' 10" | 10' 6" | 11' 2" | 9' 8" | 7' 11" |
| 2x8 | 12 | 16 | 24 | 21' 7" | 19' 7" | 17' 1" | 18' 9" | 16' 3" | 13' 3" | | | | | | |
| 2x10 | 12 | 16 | 24 | 24' 6" | 25' 0" | 20' 11" | 22' 11" | 19' 10" | 16' 3" | | | | | | |
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No Sheetrock | Rafters 20# | 20# Live Load | 10# Dead Load |
| | Doug Fir-L SS (8-20) | Doug Fir #2 (22-28) | S-P-F #2 (8-20) | S-P-F #3 (8-20) |
| 2x4 | 12 | 16 | 24 | | | | | 9' 10" | | 10' 4" | 9' 5" | 8' 0" | 8' 7" | 7' 5" | 6' 1" |
| 2x6 | 12 | 16 | 24 | | | | 13' 9" | 11' 11" | 9' 9" | 16' 3" | 14' 4" | 11' 9" | 12' 6" | 10' 10" | 8' 10" |
| 2x8 | 12 | 16 | 24 | 23' 9" | 21' 7" | 18' 10" | 21' 0" | 18' 2" | 14' 10" | | | | | | |
| 2x10 | 12 | 16 | 24 | | | 23' 4" | 25' 8" | 22' 3" | 18' 2" | | | | | | |
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Vaulted, Sheetrock | Rafters 20# | 20# Live Load | 10# Dead Load |
| | Doug Fir-L SS (8-20) | Doug Fir #2 (22-28) | S-P-F #2 (8-20) | S-P-F #3 (8-20) |
| 2x6 | 12 | 16 | 24 | | | | | 9' 10" | | 14' 9" | 13' 5" | 11' 9" | 12' 6" | 12' 10" | 8' 10" |
| 2x8 | 12 | 16 | 24 | 21' 7" | 19' 7" | 17' 2" | 20' 5" | 18' 2" | 14' 10" | | | | | | |
| 2x10 | 12 | 16 | 24 | | | 21' 10" | 25' 8" | 22' 3" | 18' 2" | | | | | | |
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Living Area | L/360 FloorJoist 40# | 40# Live Load | 10# Dead Load |
| | Doug Fir-L SS (8-20) | Doug Fir #2 (22-28) | JSI25 2.5" Flange | JSI40 3.5" Flange |
| 2x6 | 12 | 16 | 24 | | | | 10' 9" | 9' 9" | 8' 1" |
(12-20,24') | (9-1/4-20',11-1/4-24') |
| 2x8 | 12 | 16 | 24 | 15' 0" | 13' 7" | 11' 11" | 14' 2" | 12' 7" | 10' 3" |
| 2x10 | 12 | 16 | 24 | 19' 1" | 17' 4" | 15' 2" | 17' 9" | 15' 5" | 12' 7" | 19' 8" | 17' 11" | 14' 11" | 22' 3" | 20' 3" | 17' 7" |
| 2x12 | 12 | 16 | 24 | 23' 3" | 21' 1" | 18' 5" | 20' 7" | 17' 10" | 14' 7" | 22' 10" | 20' 10" | 17' 0" | 25' 10" | 23' 6" | 20' 11" |
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Bedrooms | L/360 FloorJoist 30# | 30# Live Load | 10# Dead Load |
| | Doug Fir-L SS (8-20) | Doug Fir #2 (22-28) |
| 2x6 | 12 | 16 | 24 | | | | 11' 10" | 10' 9" | 9' 1" |
| 2x8 | 12 | 16 | 24 | 16' 6" | 15' 0" | 13' 1" | 15' 7" | 14' 1" | 11' 6" |
| 2x10 | 12 | 16 | 24 | 21' 0" | 19' 1" | 16' 8" | 19' 10" | 17' 2" | 14' 1" |
| 2x12 | 12 | 16 | 24 | 25' 7" | 23' 3" | 20' 3" | 23' 0" | 19' 11" | 16' 3" |
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Deck Floor Joists | FloorJoist 60# | 60# Live Load | 10# Dead Load |
| | 2x8 | 12 | 16 | 24 | 11' 11" | 10' 6" | 8' 7" |
| 2x10 | 12 | 16 | 24 | 15' 2" | 13' 7" | 11' 1" |
| 2x12 | 12 | 16 | 24 | 18' 5" | 15' 11" | 13' 0" |
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