The base unit has a face frame and skeleton frame. A number of joints can be used to fasten the stiles and rails together, as shown in figure 5-9. The stiles are always mortised and the rails are always tenoned (fig. 5-10).

Wall Unit

A typical full-size wall unit is usually 12 inches deep and 30 inches high (fig. 5-11). A wall unit above a range is 18 inches high. Above a sink, it is 22 inches high, while over a refrigerator, it is only 15 inches high.

The number and spacing of shelves depend on the purpose of the cabinet. Shelves may be fixed or adjustable. Shelves are usually spaced from 3 to 12 inches according to the customer's wishes.

The wall unit, like the base unit, has a face frame on which to fit and hang doors. These face frames are usually made of 1-inch by 2-inch solid lumber. The actual size is 3/4 inch by 1 1/2 inch.

An allowance is made on the back edges of the end pieces for scribing. Mounting strips must be included in the wall units. Screws are driven through these strips to hold the cabinet on the wall.

CONSTRUCTING A BASE UNIT

Earlier we covered the steps on how to plan a procedure before constructing apiece of cabinetry. The

Figure 5-9. - Types of joints.