You don't need to spend a lot of money to build a grow box, in fact, your only cost will be a box of wood screws. There are three sizes of grow boxes that can be built using either a twin, queen or king size bed box frame. They can be doctored to look great and because of their unique design, they have natural drainage ability. The benefits of using this type of grow box is also good for the environment. New wood isn't used to build the grow box and the bed box frame is kept out of the landfill.
- Skill level:
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Things you need
- Utility knife
- Tape measure
- Circular saw
- Electric screw gun
- 1-pound of 2-inch wood screws
Find a box spring or box base. These can often be found on free stuff websites such as craiglist or freecycle or your local newspapers classified ads. Drive around your area and look at each dumpster you pass. Many people dump their mattresses and box springs here and all you have to do is pull it out and strap it to the top of your car or throw it into your pickup truck bed.
Place the box spring on the ground so that the side that the mattress would normally lay on is facing upward. This side will have a layer of fabric and possibly cardboard over it. Cut this layer out using a utility knife starting at the edge and cutting around the entire frame. Throw this layer in the trash.
Measure the side width and length of the box spring with a tape measure on all four sides to determine how long a piece of plywood you'll need to screw on. You need four pieces of plywood total to surround the box frame sides. Cut these pieces out using a circular saw and then screw them to the sides of the box frame with an electric screw gun. Screw in several 2-inch screws every 6-inches around each plywood side.
Place the grow box in the area you want to plant stuff and fill it with soil.
Tips and warnings
- If there was a layer of cardboard on the box spring, you can cut up the cardboard in pieces and mix it with the soil you put in the grow box for compost.