Frameless Hinges are designed for use in frameless cabinets. These cabinets are essentially four-sided boxes with no frame around the opening. Frameless Hinges mount to the cabinet interior. Frameless cabinets also are sometimes called Euro-style cabinets.
Face Frame Hinges are designed for use in cabinets that have a frame (often made from 1-1/2" to 2" wide solid wood) that is attached to the front edges, or face, of the case. Face Frame Hinges mount to this face frame. This is the most common style in American cabinets.
Pie Corner Hinges also known as ''Bi-Fold Door Hinges'' are used for installing a "two-door" system in a cabinet. Typically a 170-degree European hinge is used to attach the "two-door" system to the cabinet.
Thick Door Hinges are specially designed for use with doors that are thicker than normal (up to 1-1/4'' thick).