Free tool · Nigeria
Steel Reinforcement Calculator
Calculate reinforcement steel quantities from bar diameter, spacing, and member dimensions. Uses standard high-yield rebar unit weights (kg/m) common on Nigerian sites.
Steel Reinforcement Calculator
Estimate mesh/slab reinforcement when you know the slab size. Not for beams, columns, or stirrups.
Calculation Results
Slab Area:0.00 m²
Bars per Metre:6.67
Total Bar Length:0.0 m
Steel Weight:0.0 kg
Steel Weight:0.000 tonnes
Estimated Cost:₦0
Save this estimate to your project
Create a free RazorBuilder account to store quantities, build a BOQ, and track materials on site.
Assumptions
- Bar weights follow standard Y-bar mass tables — confirm with your supplier for branded alternatives.
- Spacing is centre-to-centre unless noted on your structural drawings.
- Laps, chairs, and couplers are not included — allow extra on high-congestion details.
Worked example
Y12 bars at 150 mm spacing across a 4 m span with multiple lines can add up quickly in kg — use the results as a procurement checklist, not a final BOQ.
Related resources
Need this on every job?
RazorBuilder stores calculator outputs in your project, turns quantities into BOQ lines, and tracks materials on site — so you are not re-typing the same wall or slab every week.