How many joist bolts to concrete for a 5 x 3.5 meter Merbau decking?

iffihyd

I have so far built a 5 x 3.5 meter merbau decking frame. The joist you see are spanned 3.5 meter and holding with joist hanger at both end plus 2 decking joist mini feet in between under the joist and concrete. My question is how many concrete bolts should I put per joist? My joist are 140x45 H3 MGP10.

JacobZ

Hi @iffihyd,

A warm welcome to the Bunnings Workshop community and thank you for your question.

Nice work with your frame, it's looking good.

There's not a definitive amount I can point to as they are just holding the deck in place, they aren't supporting it in the same way the pedestals are.

I'd suggest 2-3 along every second joist is a good amount.

Let me know what you think.

Jacob