The lower piece is one single piece (23" x 11-1/4"), while the upper layer is made up of three pieces. The two outer pieces are glued to the lower layer to create a thick, solid work surface. I cut 3/4" x 3/8" dadoes and installed a pair of T-tracks for a fence and hold-downs. The center piece of the top layer is a removable insert which rests between the two outer pieces. Its used to back up the workpiece to prevent tearout when the bit drills through, and can also be replaced when it gets chewed up. I also cut out a notch in the back corner of the table to provide clearance for the table lift crank.
Attaching and removing the table is quick and easy. Its secured by two studded knobs and washers that fit into threaded inserts installed in the underside of the table.