We're currently in the process of fencing our 5 acres. We're using welded wire fencing. It's really cheap compared to other fencing. We got it at lowes. It's not near as strong as chainlink or other fencing though. Also keep in mind when you're pricing fencing that in addition to the fence you also have to buy the polls. When you're looking at the polls remember that you have to bury them in the ground so if you're getting a 4 foot fence you'll need a 5 foot poll.