doesn't really matter but smaller boards are easier to maneuver like a size 6 or 7's are good
depends how long it is
The word skate has one syllable.
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.
4
2
A board foot is a unit of measure for lumber volume equal to 144 cubic inches, which is equivalent to a board that is 1 inch thick, 12 inches wide, and 12 inches long.
2. Skate and Board
8.25 square feet.
170
Multiply 12 by 7 =84
19.6 / 4 = 4.9 inches per piece.
A "board foot" is 1 inch thick, 12 inches wide, 12 inches long. A 12 ft 2x4 would be 8 board ft- 1/3 the width, but 2X the thickness.