Steel
Rebar weight, bar count and 12 m bars to buy
Result
181
kg
25 bars of 12 m (10 mm)
- Bar weight 0.617 kg/m 10 mm bar
- Bars along the length 28 bars 5 m each
- Bars along the width 35 bars 4 m each
- Total bar length 280.0 m
- Steel before wastage 172.6 kg
- Bars to buy 25 bars 12 m bars incl. 5% wastage
How we calculated this
- Bar weight 10² × π ÷ 4 ÷ 1,000,000 × 7850 = 0.617 kg/m
- Bar count ⌈4 ÷ 0.15⌉ + 1 and ⌈5 ÷ 0.15⌉ + 1 = 28 and 35 bars
- Total length 28 × 5 + 35 × 4 = 280.0 m
- Weight 280.0 m × 0.617 kg/m × (1 + 5%) = 181.3 kg
- Bars 181.3 kg ÷ (0.617 × 12 m) = 25 bars
Estimates are for budgeting and checking quotes, not structural design. Have a qualified engineer confirm quantities and reinforcement before building.
181 kg · 25 bars of 12 m
See result