I'm planning to building an entry door for my shop. The styles and rails will be 8 quarter by 4" vertical grain Douglas fir. The bottom rail will be 8" wide. What size of loose tenons or multiple tenons should I use?
I was thinking of using double ½" thick tenons 3" wide, spaced ½" apart. That follows the rule of thumb I have seen that the tenon should never be more than 6 times its thickness.
Does anyone have advice about wood species to use for the loose tenons? I could use up some hardwood scraps or use the fir cut-offs.
Any advice would be appreciated. This is my first project of this kind.
Ted