UncategorizedDeck Calculator R0NY83🛠️ PROFESSIONAL DECK ESTIMATOR Deck Length (ft) Deck Width (ft) Joist Spacing 16" On Center (Standard)12" On Center (Heavy Duty) CALCULATE MATERIALSJoists (Structural): 0Decking Boards (Surface): 0Fasteners/Screws (lbs): 0*Includes 10% wastage and structural safety factor. You Might Also Like Roof Truss Calculator Florring Calcualtor RR Calcualtor cement Retirement Calculator Share This Article Facebook Email Print