Final answer:
To find the board feet in a 2x8-20 piece of lumber, you multiply the width by the thickness by the length (in feet) and then divide by 12, resulting in 26.67 board feet.
Step-by-step explanation:
The question is asking about the calculation of board feet in lumber, which is a common term used in woodworking and construction. To calculate board feet for a piece of lumber, we use the formula: board feet = (width in inches × thickness in inches × length in feet) / 12. In the example given, we have a 2x8-20 piece of lumber, which means it is 2 inches thick, 8 inches wide, and 20 feet long.
To find the board feet:
First, multiply the width (8 inches) by the thickness (2 inches) which equals 16 square inches.
Then, multiply this by the length (20 feet).
Finally, divide by 12 to convert the measurement to board feet.
Therefore, the calculation would be ((2 × 8) × 20) / 12, which equals 26.67 board feet.