If you've ever come home from the lumber yard with way too much wood or not enough, you know the pain. A board foot is a tricky unit. It's not just length. It's thickness and width too. This board foot calculator does the math for you. Enter your dimensions, and you'll know exactly how many board feet you're buying or selling. No more overpaying or running back to the yard. How to Use This Calculator Enter the length of your board in feet or inches. Enter the width in inches. Enter the thickness in inches. Tell the calculator how many boards you have. Click calculate. You'll see: Total board feet Board feet per piece A rough cost estimate if you enter a price per board foot The Manual Formula (If You Want to Know) Board feet equals thickness in inches times width in inches times length in feet, divided by 12. Example: A 2x4 that is 8 feet long. Two inches thick times four inches wide equals eight. Eight times eight feet equals 64. Divide by 12, you get 5.33 board feet. That's for rough lumber.…