Study the drawing and make out a bill of lumber, noting what work must be done in order to proceed intelligently with the work.

The outside size of the door is 9 inches by 12 inches, and the width of the stiles is 2 inches. The width of the top rail is 1½ inches, and the width of the bottom rail is 2 inches, so that (allowing a little on the length of the rails so that the tenons would project through the stiles about ⅛ inch, and the stiles would project beyond the rails about ½ inch, leaving what is known to workmen as horns) the bill of lumber would be:

Bill of
Lumber 		2 pieces 13 in × 2 in × 1 in.
1 piece9¼ in × 2 in × 1 in.
1 piece9¼ in × 1½ in × 1 in.

Fig. 106.

It must also be taken into consideration that the door must be planed on the edges and the ends when it is all put together; it will be necessary to allow for this work when the material is being planed; having the stiles and rails a little over size in width will provide for this.

The laying out of this exercise is important, for there are several things to be considered; we must first find out the depth of the rabbet and the width of the molding before we proceed to lay out the work.

It will be seen from section drawing [A, Fig. 107], that the molding from the edges of the piece to the quirk is ⁵/₁₆ inch, (this is the depth that the molding plane cuts); the rabbet is also the same depth; the opening between the stiles is 5 inches; to this must be added the depth of the molding and rabbet on both sides, which makes the distance between the shoulders of the rails 5⅝ inches.

A simple rule to follow in laying out work, where pieces are in pairs or right and left, is to place the pieces together with their faces out and their edges up.

Placing the rails in this position, lay out the rails. At the end draw a line across the edges. (It must be remembered that when the pieces were sawed out, they were left a little longer than the width of the door, so that the position of the first line is to be determined by the amount of extra stock left). From this line measure off the width of the door and mark across the other end. From these lines measure in the width of the stiles, which is 2 inches; this gives the width of the opening.