I had bought some folding plastic trestles from B&Q years ago which normally hang on the wall in the workshop. OK, be honest, it's a garage, and it has a lot of stuff in there that's "not the workshop" and all I had room for was a Black & Decker workmate which has got a bit wobbly with age, and also suffered from the circular saw when I was fitting the kitchen. Recently I was planing the top of a slab table with the slab resting on two trestles, and I thought I might be able to use something like that as a bench which would be storable when not in use. Most of my work is on the lathe rather than the bench, but a project to make an large urn which also needed me to make a running steady really needed a decent work surface. When I was picking up a half sheet of 19 mm plywood from B&Q for the steady I also picked another one and a couple of lengths of 57 x 38 mm timber with rounded edges which they have for general construction joinery at a reasonable price. I made a frame which is glued and screwed to the underside of the table, and a couple of extra cross members just by each trestle. The trestle bar is slightly longer than the available width, which turned out to be a good thing as I cut a couple of mortices which are a fairly snug fit on the trestles, and the whole thing is quite steady and at a decent height. The frame around the edge is nice and stiff to use F clamps (I love these! I got them when fitting the kitchen to hold a length of wood as a circular saw guide when cutting chipboard panels for filler pieces. Cut from the back, and you get a beautiful straight edge with no tearing of the veneer on the face side). This technique was how I held a piece of ply to router the slots for the steady arms. A half board turns out to be quite a nice size for a small bench, and if necessary I can actually screw stuff to it to hold it in place.