Board Feet Calculator · Free calculator

Board Feet Calculator

Enter thickness, width, length and piece count to get total board feet with waste, linear feet and cost. The chart covers every common nominal size.

Quick answer

LIVE

Total board feet

88.00BF

incl. 10% waste · 80.00 BF net

BF per piece

8.00BF

Linear feet

80.0LF

Actual size

1.5" × 5.5"

Est. cost

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Size	8 ft	10 ft	12 ft	14 ft	16 ft	20 ft
1x4	2.67	3.33	4.00	4.67	5.33	6.67
1x6	4.00	5.00	6.00	7.00	8.00	10.00
1x8	5.33	6.67	8.00	9.33	10.67	13.33
1x12	8.00	10.00	12.00	14.00	16.00	20.00
2x4	5.33	6.67	8.00	9.33	10.67	13.33
2x6	8.00	10.00	12.00	14.00	16.00	20.00
2x8	10.67	13.33	16.00	18.67	21.33	26.67
2x10	13.33	16.67	20.00	23.33	26.67	33.33
2x12	16.00	20.00	24.00	28.00	32.00	40.00
4x4	10.67	13.33	16.00	18.67	21.33	26.67
4x6	16.00	20.00	24.00	28.00	32.00	40.00
6x6	24.00	30.00	36.00	42.00	48.00	60.00

One board foot = 12" × 12" × 1" = 144 cubic inches.
Use nominal sizes for softwood; use rough thickness (4/4, 5/4, 8/4) for hardwood.

A volume of wood 12" × 12" × 1" (144 cubic inches).

Thickness (in) × width (in) × length (ft) ÷ 12. A 2x6x8: 2 × 6 × 8 ÷ 12 = 8 BF.

Nominal for softwood dimensional lumber (2x4, 2x6). For hardwood, the rough-sawn thickness (4/4 = 1").

5.33 board feet.