Disclaimer: FootingPad® by AG-CO provides this tool to assist you in selecting the best size footing to handle the weight of the structure you are building. It uses the data you provide into known equations to determine the surface area of the footing.
If you are unsure about the data you enter or are need assistance in deck design, you should consult an engineer or other design professional. Click Here for Deck or Click Here for Pole Barn / Post Frame to see more information on the details of how this calculator works or if you want to manually calculate your footing size by post. AG-CO is not responsible for inaccurate data entry resulting in product failure due to overloading.