The sawing-in is done with a broad saw; the so-called "tenon saw" being the one most generally used.
This board should have a thickness equal to the piece to be cut from the side of the tenon.
The tenon ends are cut on the rails, care being taken to get the right angle and a good fit.
The joints may be made with dowels, or the mortise and tenon may be used, as desired.
It is put together, generally by mortise, tenon and cotter, but it has four original screws all made by hand with the file.
The mortise for the key is to be placed in the middle of the tenon.
Lay out the tenons on the ends of the rails as shown in the sketch and cut with a tenon saw and chisel.
It is very important that all tenon gauging be done from these faces.
The projection is called the tenon, and the cavity the mortise.
This will prevent the fitting of one tenon into more than one mortise.
teno- or tenon-