This is the makings of a concrete workbench. I made a recent addition to the wall behind the frame which are two 4×8 foot 16gauge steel sheets. The form is A LOT of 2x4s and plywood – this was built with an excess of wood to support the unbelievable amount of concrete that is going into the bench top. The bench will be 5 and half inches thick. A lot of rebar will be going into it so I can really pound on the thing.
Building form for concrete workbench