When filled with flowers or shrubs, wooden planters add interest to landscaping, patios, porches or decks. They can also be filled with vegetables if you have a small growing area. An apartment landing, for example, can grow quite a few vegetables out of wooden planters, as long as there is enough direct sunlight. Building wooden planters is quite easy if you have some basic woodworking skills and tools.
Measure, mark and saw two boards for the front and back of the wooden planter, 18 inches each. Measure, mark and saw boards for the sides, 8 inches long. Redwood and cedar lumber are the most rot-resistant. However, you may use any lumber that is available.
Form a box-shaped frame with the cut boards. Place the front and back 18-inch boards parallel, with the 8-inch boards inside them, crosswise at the ends.
Use galvanized (rust-resistant) screws, the drill and screwdriver attachment to connect the boards. Work the screws through the ends of the front and back boards, into the sides of the shorter boards, on all four sides. Use four to five screws at each end.
Measure the box-shaped frame, length and width. It should be approximately 18 inches long and 9½ inches wide. However, you will want an exact measurement.
Mark the exact measurements of the box-shaped frame onto a piece of plywood. Use the saw to cut around the plywood markings.
Place the plywood on top of the box-shaped frame. Screw the plywood to the frame, attaching a screw every 3 or 4 inches, all the way around.
Make drainage holes through the plywood, using the drill and a ½-inch drill bit. Make about eight to 10 holes, randomly spaced.
Brush on exterior paint or sealer over the finished wooden planter, if you desire. Paint inside and out, for maximum protection.