#4 Reinforcing Bar

Harris Supply Solutions offers #4 reinforcing bar, also called #4 rebar, which is made from a sturdy composite of carbon steel. This common, high-grade rebar has widespread applications in the residential and light commercial construction industries. In particular, #4 reinforcement steel is used to pave roads and highways, and in certain climates, it can also be used to build swimming pool frames. It is often trusted as a strengthening material in slabs, piers, columns, and walls. This 1/2 inch rebar grade is known as “13MM" in the metric system.

Common Applications Using #4 Reinforcing Bars

Below are common applications that typically use #4 rebars:

  • Residential and light commercial construction industries, such as:
    • Stem walls, retaining walls
    • The largest use for #4 rebar size is in Residential. Example: not just the slabs, but also the basement construction, as well.
    • Oldcastle - highway precast, pipes, columns
    • Idaho Precast - water retention, pipes
  • Pave Roads & Highways
  • Build swimming pool frames
  • Trusted as a strengthening material in slabs, piers, columns, and walls

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What are the Physical Characteristics of #4 Rebar?

  • Weight per unit length: 0.668 pounds per foot (0.996 kilograms per meter)
  • Nominal diameter: 0.5 inches (12.7 millimeters)
  • Nominal area: 0.2 square inches (129 square millimeters)
Imperial Bar Size"Soft" Metric SizeWeight per unit length Mass per unit lengthNominal Diameter (U.S.) Nominal Diameter (Metric) Nominal Area (U.S.)Nominal Area (Metric)
#4 #13 0.668 lbs/ft 0.996 kg/m 0.500= ½ in 12.7 mm 0.2  in2 129 in2

At Harris Supply Solutions, we continually strive to ensure that our product offerings reflect the latest technological developments and construction industry trends. Our focus is on providing our valued customer base with the reliable, strong and high-quality industrial reinforcement products they need to deliver on their construction quality promises.

We serve customers across the nation through an efficient hub of regional supply and service centers. If you would like to inquire about the suitability of a given rebar product for your application, or require a quote, please contact our sales team.

#4 Rebar Frequently Asked Questions

Q. What size is #4 rebar?

A.   ½”

Q. What is the diameter of #4 rebar?

A. 0.50 inch or 12.7 millimeters

Q. What is the weight of #4 rebar?

A. 0.668 lbs per ft.

Q. What is the price of #4 rebar?

A. Price will vary with supply/demand and market location. Contact us for more information.

Helpful Links

  • Nucor Material Safety Data Sheets
  • LEED Rating Systems
  • ASTM Standards

Harris Supply Solutions is a wholesale distributor for customers looking for a long-term partnership. Price quotes are only available to current account holders.
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