Measure the base and height of the triangle.
Calculating countertop square footage.
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Multiply the base times height.
Divide your result by two.
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This countertop calculator will help you to estimate the square footage of a new countertop for your kitchen or bathroom.
For example say the length of the countertop is 108 and the depth of the standard countertop on a 24 deep cabinet is 25.
Enter length and width.
Countertop square foot calculator select your countertop layout.
For triangular countertops there is a simple formula to calculate square footage.
This is the area of square footage of your countertop.
Countertops square footage calculator.
108 x 25 5 2 754 divide this number by 144 2 754 144 19 12 sq ft.