# The weight of round and hexagonal rebar

Of crucial importance is the weight of structural steel, which must be as low as possible while providing the greatest possible stability and durability. The usual cross sections are round or hexagonal, with round steel rods and steel wires with the same diameter have a lower weight.

### Calculation basis

The weight of reinforcing steel depends on the density of the steel grade, which, however, plays a minor role in the small diameters. The engineering steel used in the standard has the necessary properties to prevent corrosion in the concrete.

The construction calculation uses fixed weight values ​​per meter of reinforcing steel. With round steel, three points behind the decimal point are calculated up to a diameter of nine millimeters; in addition, two points are sufficient for a precise calculation.

In hexagonal structural steel is generally calculated with two digits behind the comma, the minimum diameter is five millimeters. Flat and square steel is not used as a structural steel to reinforce concrete because the weights are higher in relation to the diameter.

### Weight table for round steel

The weights of reinforcing steel are given in kilograms per meter.

Diameter (dm) 1 millimeter (mm), 0.006 kilograms per meter (kg / m)
dm 2 mm, 0.025 kg / m
dm 3 mm, 0.056 kg / m
dm 4 mm, 0.099 kg / m
dm 5 mm, 0.155 kg / m
dm 6 mm, 0,223 kg / m
dm 7 mm, 0.304 kg / m
dm 8 mm, 0.397 kg / m
dm 9 mm, 0.502 kg / m
dm 10 mm, 0.62 kg / m
dm 11 mm, 0.75 kg / m
dm 12 mm, 0.89 kg / m
dm 13 mm, 1.05 kg / m
dm 14 mm, 1.22 kg / m
dm 15 mm, 1.40 kg / m
dm 50 mm, 15.50 kg / m
dm 100 mm, 62 kg / m
dm 150 mm, 139.50 kg / m
the 200 mm, 248 kg / m

### Weight table for hexagonal structural steel

Diameter (dm) 5 millimeters (mm), 0.17 kilograms per meter (kg / m)
dm 6 mm, 0.24 kg / m
dm 7 mm, 0.33 kg / m
dm 8 mm, 0.44 kg / m
dm 9 mm, 0.55 kg / m
dm 10 mm, 0.68 kg / m
dm 11 mm, 0.82 kg / m
dm 12 mm, 0.98 kg / m
dm 13 mm, 1.15 kg / m
dm 14 mm, 1.53 kg / m
dm 15 mm, 1.40 kg / m

### Tips & Tricks

Many rebar suppliers provide online weight calculators that help you easily calculate the total weight of your need.