Rebar Size Chart

What Is Rebar Sizes and Diameter | Rebar Sizes | Rebar Diameter | Rebar Size Chart | 3 Rebar Diamter | 4 Rebar Diameter | 5 Rebar Diameter | 6 Rebar Diameter

What Is Rebar Size and Rebar Diamters?

The Rebars are steel reinforcement bars that are used with concrete to improve the tensile strength of concrete. Because, it is a known fact that concrete is very weak in handling tension force, but is strong in handling concrete forces which are acting on any structure.

There are various Reabr Size and Rebar Diameter Used in construction as per work and conditions.

Steel is the only material used as Rebar in concrete because its elongation at high temperature is nearly the same as that of concrete.

Read More: How Many Yards In a Ton | How Many Yards In a Ton of Gravel | How Many Tons In a Yard | How Many Cubic Yards In a Ton | Cubic Yard to Ton


Types of Rebars

1. Carbon Steel Rebars

The carbon steel rebars are the most commonly used steel bars used in construction and it is sometimes also called “Black Rebar”. But, one of the biggest drawbacks of this rebar is that it is easily catching corrosion compared to other types of rebar.

Therefore, It is not used in an area that is subjected to high humidity and in a structure that is continuously in contact with water.

But, It is one of the best rebars to be used in construction other than water contact.

2. Welded Wire Fabric

It is manufactured by electrically welding a series of steel wires arranged at a right angle. It is mostly used for ground-level slabs where the ground is properly compacted and leveled.

These types of rebars are used for box culverts, road pavement, drainage structures, and small concrete canal construction work.

3. Sheet-Metal Reinforcing Bars

It is manufactured from annealed sheet steel pieces and bent in corrugated shape with 1/6 inch deep holes punched at a specified distance.

These bears are mainly used for roof construction, floor slab, and stairs formation work.

4. Epoxy-Coated Rebars

Expoxy Coated Rebars is one of the expensive types of rebars that are used in an area where the structure keeps continuous contact with seawater and high humidity area.

It coating must be done properly for the best result otherwise it is also liable to corrosion.

5. European Rebars

The European Steel Rebars are generally manufactured from manganese mineral material which is having the property of easily bending.

These types of rebars are not suggested to be used in extreme weather conditions such as earthquake-prone zones, hurricanes, and rainstorms areas.

6. Stainless Steel Rebars

Stainless steel rebars are used as alternative rebar with carbon steel reinforcement bars. Stainless steel rebars are corrosion resistance coating on it which is the best option in an area that has corrosion problems.

But, Its cost is nearly eight times the cost of carbon steel rebars.

7. Galvanized Rebars

These rebars are most suitable for making strong structures that are supposed to expose in an area of high humid conditions. Galvanized Rebars are 40 times more corrosion resistant compared to normal carbon steel rebars.

Read More: How Many Bags of Concrete Do I Need For 10×10 Slab


Different Types of Rebar and Their Sizes

What Is Rebar Sizes and Diameter | Rebar Sizes | Rebar Diameter | Rebar Size Chart | 3 Rebar Diamter | 4 Rebar Diameter | 5 Rebar Diameter | 6 Rebar Diameter
Standard Rebar Sizes and Diameters
  • 3 rebar diameter
  • 4 rebar diameter
  • 5 rebar diameter
  • 6 rebar diameter
  • 7 rebar diameter
  • 8 rebar diameter
  • 9 rebar diameter
  • 10 rebar diameter
  • 11 rebar diameter
  • 14 rebar diameter
  • 18 rebar diameter

#3 Rebar Size and Diameter

3 Rebar diameters are made from carbon steel composite materials. It is mostly used for patio work, driveway construction, road work, and highway construction work.

3 Rebar is popularly known as “10 mm” diameter rebar,

3 Rebar Diameter:

#3 Rebar diameter in the metric system is 10 mm.

#3 Rebar nominal diameter in Inch is 0.375 inch

#3 Rebar nominal diameter in mm is 9.525 mm

3 Rebar Weight per unit length (lb/ft):

#3 Rebar unit weight per length is 0.376 lb/ft

#3 Rebar unit weight per length is 0.561 kg/m

3 Rebar C/S Area:

#3 Rebar Nominal Area in Inch is 0.1 inch2

#3 Rebar Nominal Area in mm is 71 mm2


#4 Rebar Size and Diameter

4 Rebar diameter is made from a sturdy composite of carbon steel. It is mostly used for commercial and residential construction work.

4 Rebar is popularly known as “13 mm” diameter rebar,

4 Rebar Diameter:

#4 rebar diameter in the metric system is 13 mm.

#4 rebar nominal diameter in Inch is 0.50 inch (1/2 In.)

#4 rebar nominal diameter in mm is 12.70 mm

4 Rebar Weight per unit length (lb/ft):

#4 Rebar unit weight per length is 0.668 lb/ft

#4 Rebar unit weight per length is 0.996 kg/m

4 Rebar C/S Area:

#4 Rebar Nominal Area in Inch is 0.2 inch2

#4 Rebar Nominal Area in mm is 129 mm2


#5 Rebar Size and Diameter

5 Rebar diameter is made from carbon steel composite materials. It is mostly used for precast components construction which is used for the canal, bridge, and road construction.

5 Rebar is popularly known as “16 mm” diameter rebar,

5 Rebar Diameter:

#5 rebar diameters in the metric system is 16 mm.

Its nominal diameter in Inch is 0.625 inches (5/8 In.)

Its nominal diameter in mm is 15.875 mm

5 Rebar Weight per unit length (lb/ft):

#5 Rebar unit weight per length is 1.043 lb/ft

#5 Rebar unit weight per length is 1.556 kg/m

5 Rebar C/S Area:

#5 Rebar Nominal Area in Inch is 0.31 inch2

#5 Rebar Nominal Area in mm is 200 mm2


#6 Rebar Size and Diameter

6 Rebar diameters are made from carbon steel composite materials. It is mostly used for heavy foundation and footing construction.

6 Rebar is popularly known as “19 mm” diameter rebar,

6 Rebar Diameter:

#6 rebar diameters in the metric system is 19 mm.

Its nominal diameter in Inch is 0.750 inches (3/4 In.)

Its nominal diameter in mm is 19.05 mm

6 Rebar Weight per unit length (lb/ft):

#6 Rebar unit weight per length is 1.502 lb/ft

#6 Rebar unit weight per length is 2.24 kg/m

6 Rebar C/S Area:

#6 Rebar Nominal Area in Inch is 0.44 inch2

#6 Rebar Nominal Area in mm is 284 mm2


#7 Rebar Size and Diameter

7 Rebar diameters are made from carbon steel composite materials. It is mostly used for medium to heavy concrete construction work.

7 Rebar is popularly known as “22 mm” diameter rebar,

7 Rebar Diameter:

#7 rebar diameters in the metric system is 22 mm.

Its nominal diameter in Inch is  0.875 inches (3/4 In.)

Its nominal diameter in mm is 22.225 mm

7 Rebar Weight per unit length (lb/ft):

#7 Rebar unit weight per length is 2.044 lb/ft

#7 Rebar unit weight per length is 3.049 kg/m

7 Rebar C/S Area:

#7 Rebar Nominal Area in Inch is 0.6 inch2

#7 Rebar Nominal Area in mm is 387 mm2


#8 Rebar Size and Diameter

8 Rebar diameter is made from carbon steel composite materials. It is mostly used in high-strength construction work.

8 Rebar is popularly known as “25 mm” diameter rebar,

8 Rebar Diameter:

#8 rebar diameters in the metric system is 25 mm.

8 rebar nominal diameter in Inch is  1.000 inch

3 rebar nominal diameter in mm is 25.40 mm

8 Rebar Weight per unit length (lb/ft):

#8 Rebar unit weight per length is 2.67 lb/ft

#8 Rebar unit weight per length is 3.982 kg/m

8 Rebar C/S Area:

#8 Rebar Nominal Area in Inch is 0.79 inch2

#8 Rebar Nominal Area in mm is 509 mm2


#9 Rebar Size and Diameter

9 Rebar diameters are made from carbon steel composite materials. It is mostly used in retaining walls, abutments, columns, and beam construction.

9 Rebar is popularly known as “29 mm” diameter rebar.

9 Rebar Diameter:

#9 rebar diameters in metric system is 29 mm.

9 rebar nominal diameter in Inch is  1.128 inch

9 rebar nominal diameter in mm is 28.65 mm

9 Rebar Weight per unit length (lb/ft):

#9 Rebar unit weight per length is 3.40 lb/ft

#9 Rebar unit weight per length is 5.071 kg/m

9 Rebar C/S Area:

#9 Rebar Nominal Area in Inch is 1.00 inch2

#9 Rebar Nominal Area in mm is 645 mm2


#10 Rebar Size and Diameter

10 Rebar diameter is made from carbon steel composite materials. It is mostly used for heavy-duty construction work.

10 Rebar is popularly known as “32 mm” diameter rebar,

10 Rebar Diameter:

#10 rebar diameter in the metric system is 32 mm.

10 rebar nominal diameter in Inch is 1.27 inch

10 rebar nominal diameter in mm is 32.26 mm

10 Rebar Weight per unit length (lb/ft):

#10 Rebar unit weight per length is 4.303 lb/ft

#10 Rebar unit weight per length is 6.418 kg/m

10 Rebar C/S Area:

#10 Rebar Nominal Area in Inch is 1.27 inch2

#10 Rebar Nominal Area in mm is 819 mm2


#11 Rebar Size and Diameter

11 Rebar diameter is made from carbon steel composite materials. It is mostly used for high-quality construction work.

11 Rebar is popularly known as “36 mm” diameter rebar,

11 Rebar Diameter:

#11 rebar diameters in the metric system is 36 mm.

11 rebar nominal diameter in Inch is 1.41 inch

11 rebar nominal diameter in mm is 35.81 mm

11 Rebar Weight per unit length (lb/ft):

#11 Rebar unit weight per length is 5.313 lb/ft

#11 Rebar unit weight per length is 7.924 kg/m

11 Rebar C/S Area:

#11 Rebar Nominal Area in Inch is 1.56 inch2

#11 Rebar Nominal Area in mm is 1006 mm2


#14 Rebar Size and Diameter

14 Rebar diameter is made from carbon steel composite materials. It is mostly used for tall buildings, parking structures, bridges, docks, and industrial facilities.

14 Rebar is popularly known as “43 mm” diameter rebar,

14 Rebar Diameter:

#14 rebar diameters in the metric system is 43 mm.

14 rebar nominal diameter in Inch is 1.693 inch

14 rebar nominal diameter in mm is 43 mm

14 Rebar Weight per unit length (lb/ft):

#14 Rebar unit weight per length is 7.65 lb/ft

#14 Rebar unit weight per length is 11.41 kg/m

11 Rebar C/S Area:

#14 Rebar Nominal Area in Inch is 2.25 inch2

#14 Rebar Nominal Area in mm is 1452  mm2


18 Rebar Size and Diameter

18 Rebar diameter made from carbon steel composite materials. It is mostly used for bridges and construction projects in marine environments.

18 Rebar is popularly known as “57 mm” diameter rebar.

18 Rebar Diameter:

#18 rebar diameter in metric system is 57 mm.

18 rebar nominal diameter in Inch is 2.257 inch

18 rebar nominal diameter in mm is 57.33 mm

18 Rebar Weight per unit length (lb/ft):

#18 Rebar unit weight per length is 13.6 lb/ft

#18 Rebar unit weight per length is 20.284 kg/m

18 Rebar C/S Area:

#18 Rebar Nominal Area in Inch is 4.00 inch2

#18 Rebar Nominal Area in mm is 2581 mm2

Read More: How Many Bags Of Concrete In A Yard | How Many Bags of Concrete Do I Need


Rebar Size Chart and Rebar Diameter Chart

Imperial Bar SizeWeight per unit length (lb/ft)Mass per unit length (kg/m)Nominal Diameter (in)Nominal Diameter (mm)Nominal Area(in2)Nominal Area (mm2)
#30.3760.5610.3759.5250.11 71
#40.6680.9960.50012.70.2129
#51.0431.5560.62515.8750.31200
#61.5022.240.75019.050.44 284
#72.04 3.0490.8722.2250.60387
#82.673.9821.00025.4 0.79 509
#93.45.0711.12828.651      645
#104.3036.4181.27 32.261.27819
#115.3137.9241.4135.811.56 1006
#147.65 11.4 1.693432.251452
#1813.620.2842.25757.3342581
What Is Rebar Sizes and Diameter | Rebar Sizes | Rebar Diameter | Rebar Size Chart | 3 Rebar Diamter | 4 Rebar Diameter | 5 Rebar Diameter | 6 Rebar Diameter
Rebar Size and Diameter

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