Square Footage Calculator
for Walls & Ceilings

  • Wall or ceiling dimensions
  • Results

In the spaces above, enter height and width measurements to calculate square footage of your application surface. Fields marked with an asterisk (*) are required.

  • 1 Box of Centennial Wood’s Reclaimed Wood Planks is equal to 20 square feet.
  • The suggested number boxes includes a recommended “overage” or “waste” factor of 15%
  • Partial boxes are rounded up to the next full box (e.g. – 4.45 boxes rounds up to 5 boxes). 

 Subtract the total square footage of all windows and/or doors from the square footage of your application surface.

  • Estimated Average Door Size = 3’ x 7’
  • Estimated Average Window Size = 3’ x 4’

If you would like assistance calculating how many boxes are needed to complete your project, please contact us.


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