Cut 8-foot timbers into 4-foot sections or have a lumberyard do this.
Clear a level area measuring 4 by 4 feet to set up your compost bin. Set two cut timbers, flat side down, parallel on the ground about 3 1/2 feet apart from each other.
Stack two more timbers, flat side down, on top of the first two timbers to complete a square. Continue stacking the remaining timbers in this pattern to create a bin a little more than 3 1/2 feet square and about 4 feet high.
Add leaves and grass clippings as well as kitchen scraps other than meat and dairy products.
Pull the timbers apart at the start of the new growing season. Move the compost to your garden and start over.