Don work gloves, safety glasses and a dust mask to protect your skin, eyes and lungs.
Measure four 1-by-12-by-12-inch pine wood cabinet panels. Cut out the panels with a hand saw. Measure two 1-by-10-by-12-inch pine wood cabinet panels. Cut out the panels with the hand saw. Sand the panels with 80 to 120 grit sand paper.
Construct a 12-by-12-inch cabinet with five of the six panels. Secure the panels with 1 1/2-inch wood screws. Insert a screw into each cabinet edge every six inches. Keep one of the 12-by-12-inch panels separate.
Attach two evenly spaced 1-inch brass hinges on the left edge of the remaining 12-by-12-inch panel with 3/8-inch screws. Connect the free side of the hinges to the open left edge of the cabinet.
Bond a 1/2-inch magnet to the right edge of both the cabinet door and the right cabinet edge at center with permanent epoxy. The bottom cabinet is now complete.
Cut two 1-by-12-by-48-inch pine wood side cubby panels, one 1-by-10-by-48-inch pine wood back cubby panel and one 1-by-12-by-12-inch pine wood top cubby panel. Sand all panels with 80 to 120 grit paper.
Place the 10-by-48-inch piece onto a flat surface so a short edge is facing you. Stand one of the 12-by-48-inch panels on its long edge. Fit the long edges of the two panels together on the left side of the 10-by-48-inch panel to create a letter "L" shape. Attach the two pieces inserting one 1 1/12-inch screw every 6 inches along the flush edges. Repeat the attachment process with the second 12-by-48-inch panel on the right edge to create a letter "U" shape.
Fit and attach the 12-by-12-inch panel to the open side on the far end of the letter "U" with 1 1/2-inch screws. The body of the cubby is now complete.
Coat both the cabinet and cubby with wood stain in a well-ventilated area. Allow 24 hours for each piece to dry.
Stand the open end of the cubby atop the cabinet. Evenly space and attach six 2-inch metal "L" brackets to the inside base of the cubby and the top of the cabinet with 3/8-inch screws. Attach three evenly spaced coat hooks to the cubby walls with 3/8-inch screws.