Charles Crawford created an upcycled bench using IKEA LACK coffee tables found on Craigslist, cut in two. He used expanding insulation foam and latex paint for waterproofing the openings created by the cut.
Each table has uniform locations where the legs screw in which make perfect pilot holes for drilling out a section from each corner. Two 3/4″ steel rods slide right through the holes and support the whole thing. The backrest (and rear slanted detail) is made of the tables’ legs screwed right into one another.