Fitting Mortise and Tenon Joints
George VondriskaGeorge Vondriska demonstrates the best way to get a snug, flush fit on your mortise and tenon joints. You should use a sharp chisel to pare away slices from the top, bottom or sides of your tenon until it fits into the rounded mortise. This is essentially a guess-and-check procedure, meaning you will shave the wood little-by-little until the joints are perfectly flush.