Some types of hinge are adjustable, so doors can be realigned if they sag or shift over time. Cup hinges are designed to be totally concealed when the door of a cabinet is closed. Cup hinges generally limit the door opening to about 115 degrees. Knife hinges, like cup hinges, can be concealed when the door is closed, but aren t adjustable. Knife hinges allow the door to open almost 180 degrees.
Barrel hinges are inexpensive hinges that are generally used on framed cabinets.
A narrow cylinder is visible when the door is closed. Most aren t adjustable. Barrel hinges allow doors to open about 160 degrees. Shelves should extend the full depth of the cabinet for maximum storage. Nonadjustable shelves, though sturdy, offer no flexibility.