Great job James on the before and after shots of your pallet deconstruction… I see that you keep similar boards together like I do. I also see you have some nail infested runners with notches in them. I have built four 24" X 24" shop tables that are 14’ H, 20" H, 26" H and 32" H… and I use those runners for legs. I’m 72 and the various sizes allow me to pick one that gets the piece to a comfortable work height. They really come in handy and are 100% free pallet wood.