Worm composting is an activity that can be done indoors or outdoors. It may even be done on the balcony of an apartment. Using a worm bin for composting can be an educational classroom activity as well. Red worms will turn your food waste into a rich, organic material that is an excellent soil conditioner. Using a worm bin to compost garbage will also reduce the amount of material sent to landfills, decreasing your carbon footprint.
Choose a location for your worm bin. Find an area that is in a mostly sunny area with some afternoon shade. Check to see that water does not stand in this area. Make sure that rainwater will not run off a roof into your bin. Trim bushes if they will be more than a foot away from the worm bin to make sure there is good airflow all around it.
Nail one 35-inch piece of plywood to a 23-inch piece of plywood using a hammer and nails. Nail at least three nails into each side. Place these nails at the top, center and bottom of the piece of wood.
Nail the other 35-inch piece of wood and 23-inch piece of wood together. Nail the two assemblies together to form a box shape using the hammer and nails. Make sure that the short sides are opposite one another and the long sides are opposite one another. Place nails at the top, middle and bottom of the sections to hold them tight.
Place the box assembly on the ground. Lay the 24x36-inch piece of plywood on top of the box assembly. Center the board on top of the framework. Hammer four to six nails along each edge all the way around to secure the frame of the worm bin to the bottom.
Place a 1/2-inch drill bit on your cordless drill. Make 12 holes in the bottom of the worm bin with the drill. Space the holes evenly, making four rows of three holes each. Start 4 to 6 inches from each edge when drilling holes.
Set two concrete blocks in the location you have chosen for your worm bin. Place these concrete blocks 2 feet apart. Set the worm bin on top of the concrete blocks. Try not to place the drilled holes directly over the concrete blocks if possible.
Add a compost solution of vegetable peelings, yard waste or newspaper to fill the worm bin 2/3 full. Add two or three handfuls of dirt or potting soil to the compost. Moisten this mixture slightly by sprinkling with a garden hose. Use a small garden rake to mix the compost solution well.
Throw two or three more handfuls of dirt on top of the new mixture, but do not mix in. Add 2 lbs. of red worms, which is approximately 1,000 worms. Check your compost mixture periodically and remove the waste which has been broken down and now resembles rich soil.