Measure in feet (or meters) and round up to the nearest foot (or meter).
Tip: If the wall is not a perfect rectangle (e.g. has a sloped ceiling), measure the highest and lowest points and we'll help you adjust.
Tip: If there's more than one door, repeat and enter all measurements.
Tip: If there's more than one window, repeat and enter all measurements.
Gap measurement guide
Tip: Consider your desired aesthetic and the style of your project when choosing the gap size
Corner stone is calculated in lineal feet (or meters), not square footage.
To measure, simply record the height of each wall or section where corner pieces will be installed. If you have multiple corners on one wall, add the heights together.
Don’t worry about the width or how the corners wrap — we’ll handle that part. Just focus on the vertical measurement.