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| Design Values & Spans for Pressure-Treated Southern Pine |
TREATED SOUTHERN PINE SPAN TABLES
Decks; Moisture Content exceeds 19%
Maximum Spans given in feet and inches; inside to inside of bearings
| Table 16: Wet-Service Floor Joists - 100 psf live load, 10 psf dead load, l/360 deflection |
Size
inches |
Spacing
inches on center |
Grade |
| Select Structural |
No. 1 |
No. 2 |
No. 3 |
| 2 x 6 |
12 |
7-11 |
7-9 |
7-6 |
6-3 |
| 16 |
7-2 |
7-1 |
6-6 |
5-5 |
| 24 |
6-4 |
6-1 |
5-3 |
4-5 |
| 2 x 8 |
12 |
10-5 |
10-3 |
9-8 |
8-0 |
| 16 |
9-6 |
9-4 |
8-4 |
6-11 |
| 24 |
8-4 |
7-8 |
6-10 |
5-8 |
| 2 x 10 |
12 |
13-4 |
12-10 |
12-6 |
9-5 |
| 16 |
12-1 |
11-1 |
10-10 |
8-2 |
| 24 |
10-4 |
9-1 |
8-10 |
6-8 |
| 2 x 12 |
12 |
16-3 |
15-4 |
14-8 |
11-3 |
| 16 |
14-9 |
13-3 |
12-8 |
9-9 |
| 24 |
10-4 |
10-4 |
10-4 |
8-0 |
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