Rails support fence panels or pickets for metal fencing. If you use preassembled fence panels, the rails are already included in the whole fence panels.
Posts provide stability to the fence panels by supporting fence rails.End or terminal posts function as starting and stopping points. Corner posts create angles to let you change the direction of the fencing. Line posts support straight runs.
Gates are available to match the style of your fence. Depending on the fence type, you can find single gates for foot traffic and double gates for vehicles. You can also find openers for some types of fence gates.