How kitchen cabinets are made?

The basic cabinet is, essentially, a box made of plywood (typically ¾”).  This box is called a carcase.  The carcase is then trimmed with doors, hinges, and appropriate hardware.  The carcase is usually held together with either dadoes or rabbets, pieces of wood that fit into associated-shaped holes, and then glued together for maximum strength holding.
The general process of building a cabinet includes the following steps:

1. Measurements – the area where the cabinets will be installed should be measured, this includes height, depth, and length, width dimensions.  In addition, it will include area above and below the cabinet.
2. Selection – Selection of wood type, finish, and other details will be made by the customer.
3. Building – The cabinets will be built according to the customer’s specifications:

1. The wood is cut to the correct dimensions
2. The pieces of wood are then “put together” (according to the manufacturer, this includes the aforementioned dadoes, rabbets, and, in some cases, screws).
3. The backing is left unfinished, but the rest of the cabinet is then finished.
4. Hinges are installed – typically on the inside of the cabinet so that they are not seen.
5. Other hardware is either installed at the cabinet maker or factory or is installed on-location.
3. Shipment – The finished cabinet(s) are shipped to the location they were ordered from for installation.