Linear Foot Calculator
Convert square footage to linear feet based on material width
Frequently Asked Questions
A linear foot is simply a measurement of length — 12 inches — with no width or area component. It's used for materials sold by length rather than area, like lumber, trim, fencing, and flooring boards.
Divide the total area (in square feet) by the material's width (converted to feet). For example, 200 sq ft of flooring using 6-inch-wide boards (0.5 ft) needs 200 ÷ 0.5 = 400 linear feet of board.
Suppliers for materials like lumber, fencing, and some flooring price and package by linear foot, not square foot — so you need to know the total length of material required, not just the area it covers.
Yes — this calculator includes a waste factor field. 10% is a common default for straightforward runs; add more for projects with lots of cuts, angles, or pattern-matching.