I would like to put a raised floor in my dinning room, only the height of a 2×4. The problem is it’s a concrete slab. I’m not sure what to put under the treated 2×4’s to get started.
I would appreciate any information you can give me.
Read my article on how and what wood floors are best installed on concrete, it should say it all. This article is available in the search box at the top of this web page and it is entitled INSTALLING HARDWOOD FLOORS ON CONCRETE SLABS.