Measure the length of the space in feet
Measure the width of the space in feet
Multiply the length by the width
Use the formula: square feet = length × width
For irregular shapes, divide the area into smaller rectangles, find each square footage, then add them together
For triangles, use the formula: square feet = 0.5 × base × height
For circles, use the formula: square feet = 3.1416 × radius × radius
Convert inches to feet before calculating if needed
Convert yards to feet before calculating if needed