Cabinetry is divided into two major categories when considering construction methods – Framed and Frameless.
Framed cabinetry utilizes a 3/4″ solid wood “frame” that is dado-ed to the top, bottom and sides of the box. This frame actually extends beyond the width of the box and covers up some small portion of the inside of the box interior. Framed cabinetry gets it’s structural integrity from this frame.
Frameless cabinetry, also often called “32 Millimeter”, “European” or “Full-Access”, cabinetry does not utilize this frame technique of construction. Frameless cabinets have panels that are put together using wooden dowels and glue and the back of the cabinet is dado-ed into the top, bottom and sides of the box. It is this back panel, which in the case of UltraCraft is a full 5/8″ thick that gives structural integrity to the box.