I built these from de-nailed and planed oak pallets. It has a simple mortise and tenon joint and a polyurethane finish. I filled in the knot holes with epoxy on the seat. I'm thinking about a chair set to go with this.
This would be a beautiful knock-down bench to take LARPing or glamping. - Traveling Work Bench You would possibly assume that the majority of the extra value is available in getting the electrical power tools.