Steel Weight & Section Chart
Unit weight and total weight for rebar and structural steel sections.
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Enter your values, then press Calculate Now to evaluate the output.
Guide — Steel Weight & Section Chart
The steel weight calculator below follows standard Indian construction practice and the relevant IS-code conventions. Enter the site dimensions exactly as measured, press Calculate Now, then refine the quantities line by line in the live sheet before you export.
The d²/162.2 relation comes straight from the density of steel: a bar of diameter d millimetres has a cross-sectional area of πd²/4 mm² and steel weighs 7850 kg/m³, which reduces to d²/162.2 kilograms per metre.
Common unit weights worth memorising: 8 mm = 0.395, 10 mm = 0.617, 12 mm = 0.888, 16 mm = 1.578, 20 mm = 2.466, 25 mm = 3.854 and 32 mm = 6.313 kg/m.
Rebar is supplied in 12 m standard lengths. Cutting schedules that ignore stock length generate offcuts; nesting bar marks against the 12 m length typically recovers 3–5% of the steel budget.
Treat every output as an indicative pre-tender estimate. Site conditions, wastage allowances, specification changes and local market rates all move the final figure, so validate against your drawings and approved rate analysis before procurement.
BBS Pro — IS 2502 live schedule
Unit weight d²/162.2 kg/m. Add each member, edit inline, export the live sheet.
| Sl No | Member / Description | Dia (mm) | Span (m) | Spacing (mm) | Members | Bars/Mem | Total Length (m) | Unit Wt (kg/m) | Weight (kg) | Action |
|---|---|---|---|---|---|---|---|---|---|---|
| No bars yet — fill the form above and press “Add to sheet”. | ||||||||||
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About the Steel Weight & Section Chart
This tool is built for site engineers, quantity surveyors, contractors and property investors who need dependable numbers fast. Every input is reactive — changing a single field instantly recomputes the full output set, so you can run sensitivity checks on dimensions, grades and rates before committing to an estimate.
Keep unit consistency in mind: metric inputs (metres, square metres, cubic metres) produce metric outputs, with imperial and Indian trade units shown alongside where they are commonly used on site.