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Stone Veneer Calculator

Square feet, corners and mortar for stone veneer.

Stone Veneer Calculator
length height
ft
ft
ft²
ft
%

Veneer is sold two ways: flats by the square foot and corners by the linear foot. Corners are far more expensive, and each linear foot of corner replaces about half a square foot of flat, so measuring them separately matters.

How this is calculated

  1. Gross area = length × height, minus openings.
  2. Subtract half a square foot of flats for every linear foot of outside corner, since the corner unit wraps and covers both faces.
  3. One 80 lb bag of mortar sets roughly 25 square feet of veneer, plus more for the scratch coat over lath.

Frequently asked questions

Do I need a scratch coat?

Over sheathing or framing, yes: lath plus a scratch coat. Over clean concrete or block, veneer can often be set directly.

How much extra should I order?

Ten percent. Veneer is laid to a pattern and the offcuts from fitting around openings are rarely reusable.

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