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Rebar

#9 Rebar — Size, Weight, Use-Cases and More

Discover the use-cases, diameter, weight and more for this size of rebar.

Rebar Calculator

Calculate how much rebar you need. Choose your unit type & add as much rebar as needed.

Rebar Calculator

Calculate how much rebar you need. Choose your unit type & add as much rebar as needed.

Table of Contents
Use-case

What is 9 rebar used for?

#9 rebar is commonly used in concrete construction for various applications where heavy reinforcement is needed. Some typical uses include:

  1. Structural Beams and Columns: Utilized to reinforce structural beams, columns, and other load-bearing elements in buildings, bridges, and other structures to enhance strength and resist bending.
  2. Foundation Slabs: Employed in the construction of foundation slabs for residential, commercial, and industrial buildings to provide structural support and stability.
  3. Retaining Walls: Utilized in the construction of retaining walls to strengthen the structure and prevent soil erosion or collapse, especially in larger and taller walls.
  4. Parking Structures: Used in the construction of parking garages and parking lots to reinforce concrete floors, ramps, and decks subjected to heavy vehicle loads.
  5. Bridge Decks: Incorporated into bridge decks and highway structures to reinforce the concrete and ensure durability and longevity under heavy traffic loads.
  6. Water and Wastewater Structures: Employed in the construction of water treatment plants, wastewater treatment facilities, and storage tanks to provide reinforcement in concrete structures subjected to environmental conditions and water pressure.
  7. High-Rise Buildings: Used in the construction of high-rise buildings to reinforce concrete elements such as shear walls, cores, and slabs to withstand vertical and lateral loads.

Overall, #9 rebar is suitable for a wide range of construction projects requiring heavy reinforcement in concrete structures subjected to significant loads and structural demands.

Size & Diameter

What size is 9 rebar?

A #9 rebar (rebar size 9) has the following specifications:

  • Diameter: 1.128 inches
  • Metric Equivalent Diameter: 28.65 mm

The number "9" in #9 rebar indicates that it is slightly more than 1 inch in diameter. This sizing convention helps in identifying the rebar size based on its number designation.

Weight Per Foot

9 rebar weight per foot

To determine the weight of #9 rebar per foot, you can refer to standard industry weights for rebar sizes:

  • Diameter: 9/8 inch (1.128 inches)
  • Weight: 3.4 pounds per foot, or 5.071 kilograms per meter

This means that if you have a length of #9 rebar, you can calculate its weight by multiplying the length in feet by 3.4 pounds per foot.

An Example

For a 10-foot length of #9 rebar:

Weight = 10 feet × 3.4 pounds per foot = 34 pounds

This weight calculation is helpful for estimating the total weight of rebar needed for a project or for making sure you’re compliant with structural design specifications.

Ton Count

How many 9 rebar are in a ton?

More Rebar Sizes

Rebar
Diameter
Weight Per Foot
3/8 inch (or 0.375 inches)
0.376 lbs.
1/2 inch (or 0.5 inches)
0.668 lbs.
5/8 inch (or 0.625 inches)
1.043 lbs.
3/4 inch (or 0.75 inches)
1.502 lbs.
7/8 inch (or 0.875 inches)
2.044 lbs.
1 inch
2.670 lbs.
9/8 inch (or 1.128 inches)
3.400 lbs.
10/8 inch (or 1.27 inches)
4.303 lbs.
11/8 inch (or 1.41 inches)
5.313 lbs.
14/8 inch (or 1.693 inches)
7.650 lbs.
18/8 inch (or 2.257 inches)
13.60 lbs.
    • Dimensions
      A diagram of slab and footing measurements
      • Length
      • Width
      • Edge Clearance
      • Rebar Spacing
      • Rebar Length
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