Extra Biscuit and Slot Ease Corner-Bracing Woes
To clamp corner braces in cabinets, I cut biscuit slots in all three sides of the brace as shown above—two to glue the brace to the case and a third to position a temporary clamping block.
Then, I glue the brace and corner biscuits as usual and put another biscuit (with no glue) in the slot between the brace and block. A pair of short bar clamps, acting on the temporary block, keep everything snug until the glue sets.
—Frank Orthmeyer, Sioux Falls, S.D.