Bus Floor Gauge

16 gauge is best.
If you use 18 ga it will flex and pop when you step on it. 16ga is thicker and won't flex.

18 ga, if that's all you got, then use it but if your doing large sections, 16 is better.
 
16 gauge is best.
If you use 18 ga it will flex and pop when you step on it. 16ga is thicker and won't flex.

18 ga, if that's all you got, then use it but if your doing large sections, 16 is better.

I think anything from 14 to 20 will work fine if you're building a subfloor with 3/4" plywood over top of it anyway.
 

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