Spike's Calculators


Shed Roof Square Footage Calculator

Calculate the square footage of a Shed style roof using imperial measurements.

Spike VM

After a flat roof, a shed roof is one of the the easiest roofs to calculate square footage of. Simplicity in form and design, the Shed roof shows up more and more in modern architecture.

Shed style roof
Length B has to be the wall that slopes for this calculator to work.

Shed Roof Square Footage

Building Length A ft inch
Building Length B ft inch
Side Overhang inch
Front Overhang inch
Rear Overhang inch
Roof Pitch /12


Roof Area ft²
Roof Angle °
Roof Slope %


  1. Enter the length A of the building. (feet+inches)
  2. Enter the length B of the building. (feet+inches)
  3. Enter the side overhang. (inches)
  4. Enter the rear overhang. (inches)
  5. Enter the front overhang. (inches)
  6. Enter the pitch of the roof. (rise /12")
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