Joist Span Calculator

Calculators

Square - round footings, walls, sidewalks, patios, pier & footing forms

Maximum joist span between beam and house or beam to beam

Deck floor materials, screws and hidden fastener calculator

Calculator 2x2 and classic Deckorators balusters

Stringer length, Angle, Projection and number of risers needed

Determine your beam and footing size based on your joist span and post spacing.

Joist Span Calculator
Based on No. 2 wood grades or better.
(Design Load = 40#LL + 10#DL, Deflection=L/360)

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