Box Culvert Quantity
Concrete and steel for RCC box culverts including wing walls.
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Enter your values, then press Calculate Now to evaluate the output.
Guide — Box Culvert Quantity
The box culvert 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.
A box culvert is quantified as the difference between the outer and inner cross-sectional areas multiplied by the barrel length. Wing walls, aprons and cut-off walls are measured separately.
Reinforcement in box culverts typically runs 110–140 kg/m³ because of the two-way haunched moment reinforcement at the corners; heavily loaded highway boxes can exceed 160 kg/m³.
Shuttering is measured on both internal and external faces. Internal shuttering is the costlier item since it must be struck through the barrel after the concrete has gained strength.
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.
Master Measurement Sheet
| Sr. No. | Description | Unit | NOS 1 | NOS 2 | L | B | D | QTY | Action |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1.000 |
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About the Box Culvert Quantity
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.