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How to Measure and Calculate Residential Square Footage

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Calculating Combination Shapes

Measuring Square Footage
Split irregular shapes into easy-to-calculate areas.
© Janet Wickell
The dimensions of nearly any house or room can be split into multiple shapes to make calcuations easier. The area above can be split into a square and a triangle.

Take additional measurements of important segments if you notice that odd shapes are emerging as you sketch the house.

  1. Make a Sketch of the Home
  2. Measuring Guidelines for Special Circumstances
  3. Using Your Measurements to Calculate Square Footage
  4. Calculating Combination Shapes
  5. Calculating Circular Shapes and Octagons

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