🏗️ Deck Footing Calculator
Deck size and footing tubes
Deck length
Deck width (out from the house)
How the deck meets the house
Freestanding — footings on every side
Ledger-attached — the house carries one side
Tube diameter
8 in
10 in
12 in
Footing depth
(to below your frost line)
Waste allowance (%)
(extra for cuts, spills and uneven ground — 10% is the usual rule)
Calculate footings
Calculator by
CalcCoverage
— free DIY & home-improvement calculators