Board feet can be determined when you have 3 dimensions for the board, but not with just two.
170
The board feet are approximately 8.004 cm`3
If you have a board that is 1 by 12 inches that is 10 foot long you will have 10 inches of board feet. This a math problem.
bullentin board is 3 feet, chalk board is 4 feet,
Cubic Feet = Area (ft) X Height (ft) / 4
One cord is 1,536 board feet.
40 board feet
9
Depends on the size of the board.
The board feet are approximately 8.004 cm`3
bullentin board is 3 feet, chalk board is 4 feet,
7.5 square feet
6
The tree is 339 feet away from the tree. 113X3=339
4 board feet in a 1x6x8
A 2x12x12 foot board would not be measured in square feet but cubic feet and there would be 240 feet3