Barbed wire fencing is made up of a metal cable with sharp projections spaced at regular intervals. Two wires are twisted together for extra strength and to allow the cable to stretch and contract with temperature changes without breaking.

Steel is available in a number of grades. Depending on their applications, different types of steel products available in the market include structural steel, steel plates, steel flats, steel squares, barbed wire, wire netting, etc.

A metal cable with sharp projections spaced at regular intervals makes up barbed wire fencing. Twisting two wires together adds strength and allows the cable to flex and contract without breaking as temperature changes.