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Measurement Guide · Tipper Fleets

Tipper Lorry Capacity in Chennai: 2 Unit, 3 Unit, 4 Unit & 6/10-Wheeler Guide · OneInfra

Demystifying 'Units', CFT, and Tonnage for tippers in Chennai. Inner dimensions, payload capacities, and how to inspect deliveries on site.

The Tamil Nadu 'Unit' Standard Explained

In Chennai and across Tamil Nadu, aggregate and sand have historically been traded in Units rather than tonnes. While government public works and computerized weighbridges use metric tonnes, local contractors and lorry operators continue to quote in units:

1 Unit = 100 Cubic Feet (CFT) ≈ 2.83 Cubic Meters (m³)

For double-washed M-Sand (density ~1,600 kg/m³), 1 Unit converts to approximately 4.5 Metric Tons.

Common Tipper Lorry Types & Capacities in Chennai

Lorry Type Typical Units Volume (CFT) Tonnage Payload Best Suited For
6-Wheeler (Compact) 2.0 to 2.5 Units 200 – 250 CFT 9 – 11.5 Tons Narrow residential streets, small renovations, independent house plastering.
6-Wheeler (High Body) 3.0 Units 300 CFT 13.5 – 14.5 Tons Most popular Chennai tipper: Standard residential foundation and slab pours.
10-Wheeler (Taurus) 4.0 to 4.5 Units 400 – 450 CFT 18 – 21 Tons Apartment complexes, main road sites, bulk foundation gravel.
12 / 14-Wheeler (Multi-Axle) 6.0 to 7.0 Units 600 – 700 CFT 28 – 32 Tons Commercial projects, layout road WMM, industrial warehouse sub-bases.

How to Verify Lorry Volume with a Measuring Tape

If you want to measure the tipper box manually before tipping:

  1. Level the Load: Ensure the material is reasonably level before measuring. A peaked heap in the center will distort depth readings.
  2. Measure Inner Dimensions: Measure inside length (L), inside width (W), and average material height (H) in feet using a steel tape.
  3. Apply the Formula:
    Volume (CFT) = Length (ft) × Width (ft) × Height (ft)
    Example: A box measuring 14 ft long, 7 ft wide, and 3 ft deep = 14 × 7 × 3 = 294 CFT ≈ 2.94 Units (~13.2 Tons).

Why Computerized Weighbridge Slips Beat Tape Measurements

While tape measurement works well for coarse stones, fine sand can suffer from bulking (volume expands by up to 20% when moist) or uneven settlement during transport.

At OneInfra, every single lorry passes through our certified electronic weighbridge:

  • Tare Weight: Empty truck weighed prior to loading.
  • Gross Weight: Loaded truck weighed before dispatch.
  • Net Weight: Exact material weight printed on the slip and handed to you on delivery.

This completely eliminates disputes over lorry body height or short-loading.

Need a tipper load in Chennai today?

Pick between 6-wheeler or 10-wheeler delivery. Transparent pricing per ton and per unit with guaranteed weighbridge slips.