There are four main ways that door hinges are installed:


Full mortise – For these, the door hinge is designed to have a leaf each installed on the door and the frame, with each one sunk into the wood in a spot that's been carved to fit it.

Half mortise – In this case, the leaf that's installed on the door side is sunk into the wood in a spot carved to fit it, while the leaf installed on the door-frame side is connected to the surface of the frame.

Full surface – Full surface mounting occurs when both the leaf on the door and the frame are connected to the surface of the wood.

Half surface – This is essentially the opposite of half mortise, it's when the leaf attached to the door is applied to the surface and the one attached to the frame is installed in a spot carved to fit it.
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