Need Shop Floor advice

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Forum topic by Manitario posted 06-03-2011 04:33 AM 1120 views 0 times favorited 1 reply Add to Favorites Watch
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2630 posts in 2904 days

06-03-2011 04:33 AM

Topic tags/keywords: shop floor question

My wife and I have purchased a new house with a marginally larger garage than what I have now (currently 13×23, moving to 17×30). Thankfully she doesn’t want to do anything silly like park a car in the garage, and has given it over to be my workshop. My current garage has a pressure treated plywood floor, with no underlying concrete pad. I love having the wood to walk on, and it has mostly worn well, although there is some flex where the TS is. My question: the new garage has a concrete floor, which I’d like to build a sub floor on with a 2×4 base on 16” centres; should I use 3/4 ply for the floor or could I get away with using 3/4 OSB…As well, would insulating the floor with rigid foam board make much of a difference in an otherwise heated garage, and if I did use the foam board, could I get away with 24” centres as the rigid foam board is not really compressible? If money was no object, I’d use 12” centres and foam board and 3/4 pressure treated ply with a smooth 1/4 ply overlay…but like a lot of things, money is limited…

-- Sometimes the creative process requires foul language. -- Charles Neil

1 reply so far

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Jim Finn

2657 posts in 2943 days

#1 posted 06-03-2011 04:54 AM

When I built the wooden floor in my workshop I used 2×4’s 16” on center and 12” on center where I planed to put the table saw. I used 3/4” tounge and gruve ply with no finish. Works well for me. No need for insulation here in Texas and I am not sure it would be worth the bother where I used to live in Wisconsin. Wood is a pretty fair insulator as is the air space.

-- Website is No PHD just a DD214 and a GED

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