A grow box is ideal for either a small or large household, whether the grower wants to stock it up with fruits, flowers or vegetables. Grow boxes can be placed on a patio (to be portable), secured to a window, or saved for small areas. One of the most important things to keep in mind when building a homemade grow box is to measure things correctly, and make sure they are firmly put together to last a long time. Ensure that your grow box is durable, and personalize it for your needs.
Wear protective gloves, eyewear and dust mask. Begin by constructing the front and back of the grow box. Use the circular saw to cut two boards that are 30 inches long from the 6-foot-by-1-inch-by-8-inch board.
Cut out the bottom section of the grow box. Use the saw to cut one 30-inch-long piece from the 4-foot-by-1-inch-by-8-inch board. Cut when the bevel of the saw is at 10 degrees, then cut it so the wooden board is 5 inches at the widest diameter.
Construct the sides of the homemade grow box from the wooden scraps. Use the saw to cut two pieces. They each should measure around 5 7/8 inches at the top to 5 inches at the bottom. Cut it carefully so it tapers between the two measurements.
Pick up all the pieces and fit them together without securing them as best you can. You may need an extra pair of hands for this. Trim off any jutting edges and sand down the sides to get rid of any roughness.
Use the clamps to secure the sides to the bottom, front and back of the grow box. Use wood glue to seal them together. Push them firmly together in order to make sure they are secure and fit well. Let dry overnight.
Use the drill the next day to create drainage holes up through the bottom board after the wood glue has dried. Make enough holes that are evenly spaced apart over the whole bottom, about 1/2 inch thick.
Stain or paint your homemade grow box if you desire. Match it to your house, or personalize it with stencils or embellishments such as faux butterflies or flower petals.