Converting Board Foot to Linear Foot

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Converting board feet to linear feet involves understanding the relationship between these two measurements. A board foot measures the volume of lumber, while a linear foot measures its length. To make this conversion, you need to know the dimensions of the board (thickness and width).

Formula to Convert Board Foot to Linear Foot:
Linear Foot = (Board Foot × 12) ÷ (Thickness in inches × Width in inches)

Steps to Calculate:
Know the Dimensions:

Thickness (in inches)
Width (in inches)
Apply the Formula:
Multiply the number of board feet by 12, then divide by the product of the thickness and width.

Example:
You have 10 board feet of lumber that is 2 inches thick and 6 inches wide:

Linear Foot = (10 × 12) ÷ (2 × 6)
Linear Foot = 120 ÷ 12 = 10 feet
This means 10 board feet of this lumber equals 10 linear feet.

Quick Tip:
A Board Foot to Linear Foot Calculator can save you time and reduce errors!
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Ludie Schultz, Sr.