You don’t have to live in an apartment, condominium or other location with minimal garden space to enjoy the use of garden boxes. Place them throughout the garden or landscaping to create added color, shape and design. Use them with any style of landscaping, such as formal, whimsical or modern. The way they are finished will dictate what type of garden they fit into best, whether they are left natural, stained or painted.
Use your tape measure to mark off two lengths of 24 inches on the lumber. Cut the lumber where you have marked. These two pieces make up the front and back of the garden box.
Mark off two lengths of 10 1/2 inches. Cut the wood at the marks. These two pieces make up the sides of the garden box.
Form the four boards into a frame shape by standing the front and back pieces on edge, parallel to one another. Set a side piece, on edge, at each end between the longer boards.
Brush glue on all four edges of the side boards. Press the front and back boards against the glue in the same frame-shaped configuration. Let the glue adhere the frame together overnight.
Join the frame shape together permanently. Connect the screwdriver attachment to the drill. Attach four screws, through the left side-end of the front board, with the drill. Place them equally across vertically. The screws will go all the way through the top board and connect into the edges of the side board. Repeat this process at the opposite end of the front board and at both ends of the back board.
Place the wood frame on top of the plywood. Mark around the frame. Remove the frame and cut around the markings on the plywood. This is the bottom to the garden box.
Spread glue on all the edges of one side of the wood frame. Place the cut plywood over the top of the wood frame. Place a brick or other equally heavy object on top of the plywood. Allow it to dry for four or five hours.
Join the bottom of the garden box permanently to the wood frame by placing a screw about every 4 inches. Using your drill, work the screw all the way through the plywood and attach it to the edges of the frame where it has been glued.
Use a 1/2-inch drill bit attachment to create five or six drainage holes across the plywood, Without drainage holes, water would collect at the bottom of the box, harming the plants' roots.