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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 14: Wet-Service Floor Joists - 40 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 |
10-9 |
10-7 |
10-4 |
9-4 |
| 16 |
9-9 |
9-7 |
9-5 |
8-1 |
| 24 |
8-7 |
8-5 |
7-10 |
6-7 |
| 2 x 8 |
12 |
14-2 |
13-11 |
13-8 |
11-11 |
| 16 |
12-11 |
12-8 |
12-5 |
10-3 |
| 24 |
11-3 |
11-1 |
10-2 |
8–5 |
| 2 x 10 |
12 |
18-1 |
17-9 |
17-5 |
14-0 |
| 16 |
16-5 |
16-2 |
15-10 |
12-2 |
| 24 |
14-4 |
13-6 |
13-1 |
9-11 |
| 2 x 12 |
12 |
22-0 |
21-7 |
21-2 |
16-8 |
| 16 |
20-0 |
19-8 |
18-10 |
14-6 |
| 24 |
17-6 |
16-1 |
15-5 |
11-10 |
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