I finally got around to putting together my 12" tall "bench on bench" or bench top joinery station elevator. I started on a blanket chest a few months ago (prior to going walkabout for a while) and got a low back pain from slightly bending over while chopping, sawing and fitting some of the mortises and tenons and decided I needed to go ahead and build something like I thought about a year ago.I had previously glued up the 24" x 12" x 3" slab months and cut out the trestle pieces months ago,but had not done the M&T work, hole drilling, etc to finish up the piece. As I recently started back on the blanket chest, I found myself moving the trestle pieces around to get them out of the way, but I was using the slab as a 3" tall elevator. I admitted it was ridiculous to keep moving the trestle pieces around, so here we are. I fabbed it up out of some semi-scrap drop off SYP (same as the bench) and finished it up today. I can remove the trestle if I want and use it in the 3" thick mode. When I use it in the 3" mode, I align the 3" slab's holdfast hole with a hole in the bench and drive the holdfast through both upper slab and lower bench holdfast holes.