How to Measure Square Footage

In this Article:Article Summary Find the Square Footage of a Space Learn a Few Tricks for Finding Square Footage Community Q&A

Knowing how to measure square footage can be very useful for real estate rental and sale purposes, and it can also help you ace your next geometry test.

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To measure the square footage of a space, separate the space into manageable parts, find the square footage of all those different parts (usually by multiplying length times width), and add the square footage of all separate parts together to find the square footage of the overall space.

1 Break down the area into manageable parts. If you’re having trouble finding the square footage, then it’s probably because you’re not working with a neat area with just one length and one width. The space might have squares jutting off in different places and could be shaped erratically. All you have to do is split up the space into even squares or rectangles. To find the square footage, or the area, of the entire space, you’ll need to find the square footage of the individual spaces and then add them all together.
- Draw faint lines separating the different sections.
- Label them A, B, and C for your convenience.
2 Measure the length and width of the first space. Using a ruler or measuring tape, find the length and width of the first space you’ve created, Space A.
- The length of the space is 12 feet (3.7 m), and the width is 15 feet (4.6 m).
3 Multiply the length of the first space by the width of the first space. To find the square footage — or the area — of the space, just multiply the length times the width, just as you would do with any rectangle.
- Ex: 12 feet (3.7 m). x 15 feet (4.6 m). = 180 square feet
4 Measure the length and width of the second space. Let’s say that the length of Space B is…