How many board feet in a 1x10x8?
By the name (nominal)
6.67 bd ft
1 × 10 in × 8 ft
By the actual dry size
4.63 bd ft
3/4 × 9-1/4 in × 8 ft
From the standard, NIST PS 20-25
The math
- A board foot is 144 cubic inches: a piece 1 in thick, 12 in wide and 1 ft long. So board feet = thickness (in) × width (in) × length (ft) ÷ 12.
- By the name: 1 × 10 × 8 ÷ 12 = 6.67 bd ft.
- A dry 1x10 is dressed to at least 3/4 × 9-1/4 in under the softwood lumber standard, so the wood you get is 0.75 × 9.25 × 8 ÷ 12 = 4.63 bd ft.
- A yard that quotes softwood in board feet may count either size; ask which one it prices on.
What a 1x10x8 weighs
The weight of the dressed board, 0.385 cubic feet, at 12% moisture content: volume × the Wood Handbook’s density, 62.43 lb/ft³ × its specific gravity at 12% × 1.12. Wood wetter than 12% weighs more; the wood weight calculator works it out at any moisture content.
| Species | Specific gravity (12%) | lb/ft³ | Weight |
|---|---|---|---|
| Douglas-fir (coast) | 0.48 | 33.6 | 12.9 lb |
| Southern pine (loblolly) | 0.51 | 35.7 | 13.7 lb |
| Western hemlock | 0.45 | 31.5 | 12.1 lb |
| Eastern white pine | 0.35 | 24.5 | 9.4 lb |
| White spruce | 0.36 | 25.2 | 9.7 lb |
One source: USDA Forest Products Laboratory, the authority for species properties it measured
A 1x10 in other lengths
| Board | Nominal bd ft | Actual bd ft |
|---|---|---|
| 1x10x8 | 6.67 | 4.63 |
| 1x10x10 | 8.33 | 5.78 |
| 1x10x12 | 10 | 6.94 |
| 1x10x14 | 11.67 | 8.09 |
| 1x10x16 | 13.33 | 9.25 |
The 1x10’s dry and green sizes, in inches and mm, are on the 1x10 actual size page. Every board side by side is on the board feet chart, and a whole order, with cost and waste, goes in the board foot calculator.
Work it out for your project
- Estimate the lumber for a whole project
List the parts, get the boards and board feet to buy, with waste.