re: Breadboard ends

My understanding of the breadboard ends is that the tight hole for the drawbored peg is only in the center mortise of the breadboard end. Other mortises have elongated holes that allow for expansion and contraction of the top. Also the mortises that are not centered in the breadboard end have extra space for the tenons to move side-to-side with expansion and contraction of the top. The drawboring keeps the end tight to the top but allows the top to expand and contract.