New bench leg and I used draw bored mortise and tenon joinery on all the joints on the new bench. This joinery pulls the tenon snugly into the mortise. I used no glue on any of the joints on this bench - none was needed. The same type of joinery was used to build the barn on our farm over a hundred years ago, and it's still standing, so I figure this type of joint is sound.
draw bore detail