You can’t have a tenon without a mortise. They go together like peas and carrots. (Or insert your favorite “go together” cliche here.) Uh, anyway, I described how to cut a tenon by hand in a previous post, and in this article, I’ll describe the process for making a mortise in a timber by hand. A mortise is basically a slot for a tenon, which is later pegged to secure the joinery. It’s simple and timeless.
Mortises are arguably more difficult to make by hand than tenons. I’ll describe how to do it with a boring machine and chisel.