Determining the area to cover is very easy, simply multiply your measurements for length and width to determine the area of your kitchen project in square inches.Example: Height: Measurement = 26″ (inches) Width: Measurement = 53″ (inches) Surface area: Measurement = 23″ x 53″ = 1,378 sq inches(Don’t forget about calculating the sides to be covered and do not account for loss we’ll add 30% so you have plenty)