Siding Linear Feet Calculator
Add each exterior wall's length to find your home's total linear feet — useful for estimating starter strip, fascia, or any trim priced by the linear foot rather than by area.
Wall lengths
Add each exterior wall's length. Height isn't needed for this calculation.
Total linear feet
Linear feet vs. square feet
Square feet measures area (used for siding panels and boards); linear feet measures length along a single line (used for trim like starter strip, fascia board, and some types of flashing). A home's total wall linear feet is simply the sum of every exterior wall's length, regardless of height.
This is a planning estimate
Frequently asked questions
What is linear feet in siding?
Linear feet measures length along a single line, used for materials like starter strip and fascia. It’s different from square feet, which measures area for panels and boards.
How do I find my home’s total linear feet?
Add up the length of every exterior wall, ignoring height. This calculator does that for you as you enter each wall.
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