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By clicking below, you agree that the use of this design aid is for estimating purposes only. Results are not valid for use & no construction or design shall be performed without the review and certification by a registered professional engineer.
No warranty or guarantee whatsoever is offered with any results obtained herein.
This calculator allows you to find the necessary footer or slab size for a given patio, sunroom, or canopy system.
Patio Footing Sizing Calculator