The basics you need for this DIY deer-free yard are wooden posts, chicken wire, and staples. For a 140-foot yard, you'll need about 15 posts, spaced about 10 feet apart. Currently, Lowe's has Severe Weather's 4″ x 4″ x 8' Southern Yellow Pine Ground Contact Pressure Treated Lumber for $11.28. If the thought of digging holes by hand puts you off, rent an auger.
Once everything is in line, the real work begins. First, dig holes 10 feet apart. Then, plant each post in the center, making sure it’s straight. Backfill the holes with freshly dug soil and tamp down each layer. Work in stages, making sure all the posts are in line. Next, wrap the chicken wire around the posts, securing it with zip ties first. Now, with all your strength, pull the chicken wire tight and secure it to the posts with staples. If you can handle a hammer or have a fence stapler, now is the time to make it shine. Next, the gate is calling. Create and attach a properly sized frame to which you can staple the same chicken wire. Once your DIY deer fence stands tall, it’s time to do a final walk-through. Cut the chicken wire overhangs, smooth out any jagged edges, and cut off the temporary cable ties.