Deer Fencing is usually 1.8m galvanized wire, which is very strong and lightweight. No barbed wire on top. It allows you to protect your trees and shrubs from being eaten or being used to rub up against.
We have recently installed just under 800m of 2m high deer fencing in Melksham for a field crop trial site to prevent deer browsing and impacting on the trial results. In addition to the fencing, we erected 4 gates to match.
For details of the many other different types of fencing we erect, please see here