Rebar, short for reinforcing bar, is a steel bar or mesh of steel wires used within concrete structures to increase their tensile strength. Concrete is strong under compression but weak in tension, making rebar essential for preventing cracking and maintaining structural integrity. Rebar typically consists of carbon steel and has a ribbed surface to create a strong bond with the surrounding concrete. It is a standard component in foundations, slabs, walls, beams, retaining walls, and other load-bearing elements.
While the most common type is carbon steel, rebar can also be manufactured from stainless steel, epoxy-coated steel, or composite materials like glass fiber, carbon fiber, or basalt fiber. Manufacturers include CMC Steel, Nucor, Metal Zenith, and Harris Rebar. The price of steel rebar varies based on size, grade, and market conditions. Carbon steel rebar typically ranges from $290 to $700 per ton, $0.40 to $2.25 per linear foot, or $0.65 to $1.00 per pound. Stainless steel rebar can cost between $3.50 and $8.00 per linear foot. Rebar is readily available from steel suppliers, distributors, and home improvement stores.