set of three welded steel box trusses, pre-drilled and assembled together with two ply 1in marine plywood and recycled industrial rubber conveyor belt flooring.
assembly of foundation pad, post-excavation; dry stone aggregate fill inside recycled car tire stack with concrete capdig a hole 1x1x1 meters volume below-grade; do not eat food next to excavation if contaminated site like Agbogbloshiestack recycled car tires with side walls cut out and dry stone aggregate infill, incremental backfill with site materialone trip of 5/8in granite stone aggregate used for foundation pads plus site fill