Drywall Square Foot Calculator – Instant Measurements

This tool calculates the total square footage of drywall sheets needed for your project.

Results:

How to Use the Drywall Square Foot Calculator

This calculator is designed to help you estimate the number of drywall sheets you’ll need for your project.

  1. Enter the length and height of the wall in feet.
  2. Input the total floor area of windows and doors combined, as they do not require drywall.
  3. Specify the size of the drywall sheet in square feet. By default, it is set to 32 square feet which corresponds to a standard 4×8 drywall sheet.
  4. Click on the Calculate button to see the total wall area, area covered by windows and doors, usable wall area, and the calculated number of drywall sheets needed.

Limitations

  • The calculator assumes walls are perfectly rectangular.
  • Only standard wall areas are calculated without considering curvature, slopes, or complex geometry.
  • Make sure the area specification is realistic, as negative values for the remaining area are not supported.

Use Cases for This Calculator