First, make sure that rabbits are the only animals you need to exclude. Many kinds of animals work at night, so it's sometimes hard to identify culprits. A rabbit fence won't keep out raccoons or deer, so use clues, such as footprints or droppings, for identification. Then, determine what area you want to fence against rabbits. Using 6-inch-long wooden stakes, put a stake in each corner of the area and stretch string between them. Then dig a 6- to 8-inch wide and 6-inch deep trench under the string with a garden spade.
Putting in Posts
If cottontails or brush rabbits are the only rabbits you need to keep out, choose wooden 2-inch posts that are about 3 1/2 feet long. To keep out jackrabbits, you'll need 4 1/2-foot-long posts. Using a mallet, drive a stake in the ground in each corner, putting it about 8 inches into the ground past the depth of the trench. If the sides of the fenced area are long, add posts about every 4 feet, evenly spaced between the corner posts.
Rabbits can chew through plastic and wooden fencing materials, so you'll need 48-inch-wide wire fencing such as 1-inch mesh poultry netting. Any fencing should extend 2 feet above ground for cottontails and brush rabbits and 3 feet above ground for jackrabbits. Wear gloves to protect your hands while working with wire mesh. Unroll the fencing and stretch it tightly against the posts. To keep rabbits from digging under the fence, bend the bottom 6 to 10 inches of wire against the bottom of the trench to form a J or L shape with the edge pointing outward to keep rabbits out.
Making a Gate
For 2-foot-tall fences, simply step over the fence, taking care not to trip. To bring in tools or wheelbarrows or for the jackrabbit fence, create a 4-foot-wide gate in the last section of poultry netting installed. After pulling the last length of netting to meet the final corner post, cut the wire where it meets the post. With the last portion flattened against the ground, place the cut wire edge between two 2-foot-long wooden one-by-two furring strips and nail them together. This forms the gate's edge. Then, measure back 4 feet from the furring strips along the bottom edge of the wire and make an 8-inch-long cut in the bottom edge. So this flap isn't buried, roll it so it's at ground level. Fasten the gate edge to the corner post with two bungee cords at the top and bottom.
Finally, fill the trenches and fasten the wire to the posts. Lengths of baling wire or plastic cable ties work well for fastening the poultry wire at 1 inch above the soil, again at about the poultry netting's midpoint, and about 4 inches from the top. Check the fencing regularly to make sure it hasn't been damaged.