We are planning on starting a garage remodel in the spring and thinking about how to do the floor. We are considering laying 2 x 4's, 16 inches a part on top of some low cinder blocks and putting insulation between all them. The beams would be connected to the sides of the garage so there would be no movement. Then on top of that putting 1 inch plywood. Is this something that would be sturdy enough for a floor?