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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 15: Wet-Service Floor Joists - 60 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 |
9-5 |
9-3 |
9-1 |
7-11 |
| 16 |
8-7 |
8-5 |
8-1 |
6-10 |
| 24 |
7-6 |
7-4 |
6-8 |
5-7 |
| 2 x 8 |
12 |
12-5 |
12-2 |
11-11 |
10-0 |
| 16 |
11-3 |
11-1 |
10-6 |
8-8 |
| 24 |
9-10 |
9-7 |
8-7 |
7-1 |
| 2 x 10 |
12 |
15-10 |
15-6 |
15-2 |
11-10 |
| 16 |
14-4 |
13-11 |
13-7 |
10-3 |
| 24 |
12-7 |
11-5 |
11-1 |
8-5 |
| 2 x 12 |
12 |
19-3 |
18-10 |
18-5 |
14-1 |
| 16 |
17-6 |
16-7 |
15-11 |
12-3 |
| 24 |
15-3 |
13-7 |
13-0 |
10-0 |
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