Place the 1-by-2s on a worktable. Apply glue to the ends of the 15-inch pieces, place them between the 30-inch pieces, one at each end and clamp them tightly with the bar clamps.
Set the table saw fence at 12 inches and set the angle of the blade to 45 degrees. Next, cut one of the 30-inch edges of the two 12-inch side panels. Then set the table saw fence at 3 inches and cut both of the 30-inch edges of the 3-inch back.
Place the four 30-inch panels on a worktable. Measure up from the short edges and make a mark at 1½, 11 and 20½ inches. Place the framing square on the marks and draw lines across the width of the panels. The 1½-inch mark is the bottom shelf. The shelves will install underneath each line.
Apply wood glue to the 20½-inch edges of the shelves and secure them to both of the 20½-inch wall panels with the 4d (penny) finish nails. Next, apply glue to the 11¼-inch edge of the shelf and secure the 12-inch side panels to them with the 4d finish nails. Be certain the 45-degree edge is towards the front of the cabinet. Apply glue to the 3-inch back of the shelves and secure the 3-inch back to the shelves with the 4 penny finish nails
Remove the bar clamps from the frames built in Step 1 after the glue is dry, and sand it with the belt sander. Be sure not to sand across the grain.
Drill pilot holes where the frame meets the cabinet with the 1/16-inch drill bit. Be sure to align the pilot holes on the frame ends with the 12-inch panels. Apply glue to the front edges of the cabinet everywhere the frame will meet it. Secure the frame to the cabinet with the 4d finish nails. Set all nail heads and fill the holes with wood putty.
Install the hinges on the cabinet door per manufacturer's instructions. Then install the door onto the frame.
Things You Will Need
- Two pieces 1-by-2-by-30-inch lumber (frame ends)
- Two pieces 1-by-2-by-15-inch lumber (frame rails)
- Wood glue
- Two 24-inch bar clamps
- Table saw
- Two pieces 12-by-30-by-¾-inch plywood side panels
- One piece 3-by-30-by-¾-inch plywood back
- Two pieces 20½-by-30-by-¾-inch plywood wall panels
- Framing square
- 4d (penny) finish nails
- Four 6-sided plywood shelves (20½-by-20½-by-11¼-by-11¼-by-16-by-3-inches)
- Variable speed drill
- 1/16-inch drill bit
- Clean excess glue immediately with a damp cloth. Stop driving the nails within ¼-inch from the frame to avoid hammer marks. Use the nail set to finish driving the nails. Sand the door with 100 grit sand paper.