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Number 3 Rebar

Made from carbon-steel composite, Number 3 reinforcing bar or “rebar” is primarily used in swimming pool frames, road and highway paving, and patio and driveway construction. It also has important applications in the vineyard industry, as it is ideal for training rootstocks to grow as designated by its trellising system. The expansion coefficient of the carbon-steel composite compares favorably with the characteristics of industrial-grade concrete. In metric measures, Number 3 rebar is known as “10MM.”

The physical characteristics of Number 3 rebar are as follows:
  • Weight per unit length: 0.376 pounds per foot (0.561 kilograms per meter)
  • Nominal diameter: 0.375 inches (9.525 millimeters)
  • Nominal area: 0.11 square inches (71 square millimeters)
  • Rebar sizes chart

    Imperial Bar Size

    "Soft" Metric Size

    Weight per unit length (lb/ft)

    Mass per unit length (kg/m)

    Nominal Diameter (in)

    Nominal Diameter (mm)

    Nominal Area(in2)

    Nominal Area (mm2)









    Our team of customer service experts is happy to help you determine the suitability of a given rebar product for your intended application. For personalized service, or to request a price quote, contact our team of sales experts.

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