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Wetland Trail Design and Construction: 2007 Edition

Appendix E—Table of Board Feet

The most common sizes of boards used for boardwalk and bog bridge construction.
Size of board Length of board (ft) Finished size (inches)
6 8 10 12 14 16
1 x 6 3 4 5 6 7 8 ¾ x 5½
2 x 4 4 5.33 6.67 8 97 11 1½ x 3½
2 x 6 6 8 10 12 14 16 1½ x 5½
2 x 8 8 10.67 13.33 16 19 21 Normally rough sawn
2 x 10 10 13.33 16.67 20 23 27 Normally rough sawn
2 x 12 12 16 20 24 28 32 Normally rough sawn
3 x 4 6 8 10 12 14 16 Normally rough sawn
3 x 6 9 12 15 18 21 24 Normally rough sawn
3 x 8 12 16 20 24 28 32 Normally rough sawn
3 x 10 15 20 25 30 35 40 Normally rough sawn
3 x 12 18 24 30 36 42 48 Normally rough sawn
4 x 4 8 10.67 13.33 16 19 21 3½ x 3½
4 x 6 12 16 20 24 28 32 Normally rough sawn
6 x 6 18 24 30 36 42 48 Normally rough sawn

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