#6 Rebar
Where flexural steel starts getting serious: beam bottoms, heavier footings and retaining wall stems lean on #6.
3/4 inch diameter, 0.44 in2, 1.502 lb per foot
| Nominal diameter | 3/4 in (19.1 mm) |
| Cross section area | 0.44 in2 (284 mm2) |
| Weight | 1.502 lb per foot (2.235 kg per meter) |
| Typical grade | Grade 60, 60 ksi yield |
| Soft metric name | No. 19 |
| 20 ft stock bar | about 30 lb |
| Nearest Canadian bar | 20M |
Notes for design and site
Each #6 carries a bit over twice a #4, so mats and beam bottoms thin out fast when the switch is made, and spacing rather than area is usually what forces it. Retaining wall stems are classic #6 territory: enough steel per bar to keep the layout buildable at real design moments.
The 40 diameter rough lap reaches 30 inches and a 20 ft bar weighs 30 pounds, both still one person numbers but no longer trivial ones. Metric name: No. 19.
Related Calculators and Reference
- RC Beam Design Calculator: beam bottoms where #6 earns its place.
- Retaining Wall Pressure Calculator: the loads a #6 stem is resisting.
- Development Length and Lap Splice Calculator: laps past 30 inches deserve a check.
- #7 Rebar: the next step toward column work.
- Rebar Cutting List Calculator: the schedule for the whole element.
- Concrete Reinforcing Steel Institute: the US industry body for reinforcing steel.