Wood Deck Span Calculator
Based on Canadian Wood Council Guidelines (CSA O86-14 and NBC 2015).
⚠️ Important Disclaimer
This calculator is for reference only. Always consult with a qualified structural engineer or building professional for structural design and code compliance verification. This tool does not address deck footings, railings, lateral bracing, or attachment to houses.
Deck Joist Span Calculator
Beam Selection - Supporting Single Span
Beam Selection - Supporting Two Spans
⚠️ Important Disclaimer:
This calculator is for reference only. Based on Canadian Wood Council Prescriptive Residential Exterior Wood Deck Span Guide. Always consult with a qualified structural engineer or building professional for structural design and code compliance verification.
Design assumptions: Live load 1.9 kPa (40 psf), Dead load 0.5 kPa (10 psf), No.2 grade or better
Main Index
