Spacing Between Joists


Old 10-01-08, 11:30 AM
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Spacing Between Joists

I am building a deck across a 2 foot deep 'pit' originally built around tree in my backyard. I bought concrete piers with 2x6 PT joists running the width of the pit. My question is, what is the maximum spacing between the joists? I currently have these spaced about 34-36" apart. Is this too much?

Additional info: the piers support the joists about every 3-4'. Let me know if anyone has any insight. I just want to make sure the decking will not give in between the joists.

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Old 10-01-08, 01:08 PM
Join Date: Jul 2006
Location: NH, USA
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If using 2x decking (typically 2x6), then max width is 24".
If using 5/4 decking (typical decking material), then max width is 16".
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