In the past, I've used old tires to support the platform for cushioning and less wear & tear on the surface beneath platform in my garage. Every so often, check to make sure platform is level and shim and or move tires around until it is level again. The platform was constructed with a base layer of 1/2" ply and a top layer of 3/4" ply with 2" x 4"s in between but not secured and not tightly packed for cushioning and less noise. Only the perimeter is screwed down, so the platform can be taken apart in minutes witha cordless drill and put back together the same. Hope this helps; HAPPY HOLIDAYS!