Square Feet to Linear Feet Calculator

Divide your floor’s square footage by the exposed (visible) width of each flooring board, not necessarily its full milled width, since some flooring types have a tongue-and-groove overlap that’s hidden once installed.

Yes — a wider board covers more area per linear foot, so it takes fewer total linear feet of a wide board to cover the same square footage compared to a narrower board.

Use the exposed reveal width printed on your siding product’s spec sheet, which is typically narrower than the panel’s full manufactured width due to overlap between courses.

No — this calculator gives the exact linear footage to cover the stated area with no waste. Add your own waste allowance percentage on top of this result for cuts, trimming, and pattern matching.

Yes — multiply the linear feet by the material width to get back to square feet; that’s the reverse of the calculation used here.

Once flooring or siding is installed, part of each board is often hidden beneath the next board’s overlap or joint, so using the exposed (visible) width gives a more accurate linear-footage figure than the board’s full manufactured width.

The formula itself is the same regardless of flooring material — only the exposed width value changes, so check your specific product’s spec sheet for its exposed width before calculating.

For random-width flooring, use the manufacturer’s stated average coverage per linear foot if provided, since a single fixed-width formula doesn’t directly apply to mixed-width bundles.

Yes — the same area-divided-by-width formula works for any material sold in fixed-width linear runs, including baseboard, casing, and similar trim profiles measured by their face width.