Joist Spacing and Blocking 101

Joist Spacing and Blocking
Quick Reference Guide
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Proper joist spacing is required for proper installation. Joist spacing should never exceed 16”
on center unless using TT/AZEK Max board= 24" max. For a more rigid feel, 12” or less, may be
preferred. If adding additional framing be sure to keep all boards even and in plane
across tops.
Confirm Proper Joist Spacing
STEP TWO
for more rigid feel