I’m planning on building a 10′ x 12′ shed out back. I have a couple of questions. I want to set the shed on some type of paving block and I would like to know what kind of block (size and thickness) to use, and where to find them (Home Depot?). Also how many should I use for a 10′ x 12″ shed. Also I wasn’t sure what to use for the floor, I was thinking 3/4″ ply. I’m framing the base with 2×6 pressure treated lumber. Walls will be 2×4 studs, sheathing and roof deck will be 7/16″ osb. And will be vinyl sided to match house. Apprerciate any answers.