How to Build a Cabinet for an Outside Home Circuit Box

Set out two 1/2-by-6-by-24-inch treated plywood boards. Place them a foot apart, parallel to each other and stand them up on their long, thin sides to be the side boards of the cabinet. Stand a 1/2-by-6-by-12-inch treated plywood board against their ends to be the top of the cabinet.

Drill two holes down through the top board and into each of the side boards, for a total of four holes. Screw galvanized 2-inch wood screws through the holes to attach the top board to the side boards. Repeat on the other end of the side boards to add another 1/2-by-6-by-12-inch bottom board to the side boards.

Position a 1/2-by-2-by-11-inch treated plywood board within the frame, with its largest surface facing upward and its long, thin surface flush with the inside of the top board. Set the ends of this board, which is the attachment board, against the inside of the side boards. Move the board up so that its top surface is flush with the top surface of the side, top and bottom boards.

Drill three holes through the top board and into the attachment board and screw them together with 2-inch galvanized wood screws. Drill a hole through each side board and into the attachment board and attach them with 2-inch galvanized wood screws.

Flip the cabinet over and set a 1/2-by-12-by-25-inch treated plywood board on top of the frame. Slide two side-mount cabinet hinges in between this board, which is the door, and one of the side boards. Mark the locations for the screw holes, lifting up the cabinet door if necessary to make the markings. Drill holes where marked, and attach the hinge to the door and side board using 1/2-inch wood screws.