This is the first set of pics. Material used was 3x3 aluminum angle, s/s 1/2" nuts and bolts, and 3/4 plywood. 3 pieces of plywood laminated together to equal a thickness of 2 1/4". Tools used were, a circular saw, drill, a tape measure, and a small drill press. Being able to read a tape measure and getting lucky helps too. This was built on the tail gate of my p/u truck.