Foam board insulation and vibration?
Hi folks, I'd appreciate hearing your thoughts on this. For my new van build, I was planning to do a floor of foam board (the 4x8 blue or pink stuff used in S&Bs), topped with 1/4" plywood, then sh...
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I would put 1x2 sleepers down 12" OC then cut your foam board to fill in between the sleepers 3/8 plywood over that. Your foam wont break down and you'll have support for anything sitting on it. The 1x2's are nominal 3/4x 1 1/2 they should fit between the ribs in the van bed which would for a 1/2 inch foam if you want thicker go with 2x2's and go with 1" foam.
