NAME ________________
BLOCK ________________
SAMPLE BOARD FOOT PROBLEMS
A. The standard unit measurement for solid lumber is the board foot.
B. A board foot (B.F.) is equal to a volume of 144 cubic inches.
C. LUMBER THAT IS LESS THEN 1” IN THICKNESS IS FIGURED AS 1”.
D. Lumber that is between 1” and 2” in thickness is figured by quarters. (that is fourths)
E. Lumber that is between 2” and 3” is thickness is figured by the halves.
F. Abbreviations: T (thickness), W (width), L(length), “(inches), ‘(feet)
G. When the length of the board is in inches: T” x W” x L”/144 =BF
H. When the length of the board is feet: T” x W” x L’ /12 =BF
I. A calculator may be used to figure these problems.
J. To figure cost of lumber, cost x B.F. example: $3.00 x 6 bf = $18.00
1. 1” x 12” x 12” ________ 1 bf_______
2. 1” x 12” x 18” ________ 1.5 bf_____
3. 1” x 12” x 24” ________ ___ _______
4. 1” x 12” x 30” ________ ___ _______
5. 1” x 12” x 36”_________ ___ _______
6. ¼” x 12” x 12” _______ 1 bf_______
7. ½” x 12” x 18” _______ 1.5 _______
8. 5/8” x 12” x 24” _____ 2 bf _____ _
9. ¾” x 12” x 30” _______ ___ _______
10. ¾” x 12” x 36” ______ ___ _______
11. ¾” x 9” x 24” ________ ___ _______
12. ¾” x 9” x 12” ________ ___ _______
13. ¾” x 6” x12” ________ ___ _______
14. ¾” x 3” x 12” ________ ___ _______
15. ¾” x 4” x 24” ________ ___ _______
16. ¾” x 5” x 29” _________________
17. ¾” x 8” x 9” ___________________
18. ¾” x 4” x 54” __________________
19. 5/8” x 2 ½” x 32” _____________
20. ½” x 1 ½” x 38” ______________
21. 1” x 12” x 7’ ___________________
22. 1” x 6” x 8’ ____________________
3. ¾” x 4” x 9’ _____________________
24. ½” x 3 ½” x 8’ ________________
5. 5/8” x 5” x 10’ _________________
26. 1 ¼” x 12” x 12” ______________
27. 1 ¼” x 8” x 7’ _________________
28. 1 ¼” x 5” x 7’ _________________
9. 1 ½” x 7” x 10’ _________________
30. 2” x 10” x 6’ ___________________
31. 3 B.F. 1” Walnut, FAS, S2S, @ $3.00 per B.F. ______________________________________
32. 5 B.F. 1” Red Oak, FAS, S2S, 8” x 18” pieces, @ $2.50 per B.F. ___________________
33. 2 pieces 1” Pine, B and Better, 8” x 18”, @ $1.50 per B.F. _______________________
34. 1 piece 1 ¼” Maple, FAS, S2S, 8” x 10”, @$2.00 per B.F. _________________________
35. 1 Piece Birch, FAS, S2S, ¾” x 6” x 10’, @$1.60 per B.F. __________________________