Trellis systems can be as simple as a single wire in a high cordon system to as complex as a catch wire system used for table grapes.
Proper construction and installation of the vineyard trellis are important components in the establishment and success of a vineyard. The trellis is the main support structure of grape vines in the vineyard; it must be sturdy enough to support canopy and wind loads that exert forces on the catch and cordon wires, line posts, and end assemblies. The vineyard trellis, and especially the end post assembly, must be properly constructed to support canopy and wind loads.
Fixed knot fencing is the strongest fencing product available. It is made of high tensile steel wire that, due to its high carbon content, is stronger and lighter than other types of agriculture fence. This wire is class 3 galvanized and zinc-aluminum coated to resist corrosion and rust 2-3 times better than class 1 galvanized steel. This wire is comprised of vertical stay wires and line wires that are locked together to prevent shifting and sagging with a strong fixed knot. The sturdiness of this fence is evident in the reduced amount of posts required to hold the fence firm and straight—only one post need be placed every 20 feet on your fence line. These posts are solid pine and 5-6 inches in diameter, adding to the overall strength of this fence. You can expect your fixed knot fence installation to last between 20-40 years.