How to Build a Compost Bin From Pallets With a Plastic Drum

Drill six to seven holes in the sides of your plastic drum for air circulation. Compost "cooks" faster with adequate access to air, particularly at the bottom of the pile. Put the setup in a flat, even site where it gets indirect sun and shelter from rain and wind. Exposure to the elements upsets the moisture and temperature of a healthy compost pile. The pallets around the bin should sit flat to avoid tipping.

Fill the drum one-third full of garden soil as your base. Use soil anytime you want to "start" compost, or to soak up excess water in the pile. Add yard scarps like grass, leaves, wood and dead foliage, and kitchen and house scraps like fruit, pasta, bread, coffee grounds, eggshells, paper, cardboard and tissue. Don't add weeds or mushrooms, as these sprout in compost piles, and avoid meat, fish or egg products as these attract pests. Use a wide selection of ingredients for healthy, balanced compost.

Mix compost starter or bone meal into the pile to start the breakdown process and water the pile until it's moist throughout. Use a shovel or garden fork to turn the pile. The micro organisms that break down the organic matter need both moisture and air to survive and do their work. Reach all the way to the bottom of the bin to turn all matter.

Feed and water the pile every week. Once-a-week feedings lead to quicker cooking and better balance in compost piles. Never let the pile go dry or get soupy, as either will kill the micro organisms. Turn the pile at least once or twice a day, and more often for quicker composting; more air circulation leads to quicker cooking. Expect the compost to heat as it breaks down.

Use the compost when it turns dark and crumbly, and reaches a soil-like appearance. Scoop finished compost out for the garden, and leave unfinished compost to cook longer.