1

Mark the two side pieces. Use a tape measure to swing arcs for the edges as shown in Figure A, then mark the holes for the pivot screws and the back dowel stop.

2

Assemble the stool with 2-in. screws. First screw the back brace to the bottom shelf, then secure this L-shape assembly to the sides. Drill the holes for the pivot screw and the back dowel stop.

3

Install the back. Screw the back to the pivot arms to create a U-shape. Drill the holes in the pivot arms, then secure the back using 2-in. bolts, washers and nuts. Don’t permanently fasten the top until you’ve “test swiveled” the back to make sure you have enough clearance.