RabbetSpace

Rabbet or rebate depth extenders strips, to secures the art and finish off the back of the frame quickly, easily, and neatly.
RabbetSpace is a neutral pH plastic rabbet depth extender used on the back of wood picture frames to extend the depth of shallow rabbets. This comes in handy when doing "Spacer Picture Framing" in ready-made frames or refurbished frames as the rabbets are usually too shallow to accept the combined thickness of the glass, mount or mat boards, spacer, and backing board. RabbetSpace is easily screwed to the back of the frame and comes in 4 sizes from 3mm (1/8”) to 12.5mm (1/2”) extensions.