In woodworking and cabinetry, a 1/2″ overlay refers to the amount that a cabinet door covers or overlaps the cabinet frame when it is closed.
With a 1/2″ overlay, the cabinet door is 1/2 inch wider and 1/2 inch taller than the cabinet opening. This means that when the door is closed, it overlaps the cabinet frame by 1/2 inch on all four sides.
Compared to a full overlay or 1″ overlay, a 1/2″ overlay provides less coverage of the cabinet frame when the door is closed. This can create a different visual effect and may impact the accessibility of the contents inside the cabinet.
The choice of overlay size is typically based on the desired style and function of the cabinets, as well as the preferences of the designer or homeowner.