DIY & materials · Calculator companion · By K Imports
Excavation spoil and loads: practical guide
This guide explains how to use the Count.ie excavation spoil and loads. Estimate loosened spoil, weight, truck loads and disposal cost. Follow the inputs, method and worked example below, then compare your own scenario.
Guide written .
Open the Excavation spoil and loads calculatorWhat to prepare
- Measure the actual space and record every dimension with its unit.
- Check the supplier's pack size, stated coverage and installation instructions.
- Separate the measured requirement from waste, cuts, overlaps and spare material.
Understand the inputs
The calculation method
Loose volume = in-situ volume × swell factor. Loads meet both volume and weight limits, rounded up.
Worked example
Illustrative inputs and their result.
Example inputs
- Excavation length (m)
- 10
- Excavation width (m)
- 5
- Excavation depth (m)
- 0.5
- Volume swell after excavation (%)
- 25
- Truck loose volume limit (m³)
- 10
- Truck payload limit (tonnes)
- 18
- Loose spoil density (tonnes/m³)
- 1.4
- Disposal price (€/tonne)
- 20
Calculated example result
- Truck Loads
- 4
- Disposal Cost
- €875.00
How to interpret the result
The calculated quantity is a planning estimate, not an installation specification. Whole packs and site conditions can change the order; structural or safety-critical work needs appropriate professional guidance.
Compare alternative dimensions or pack sizes without changing the unit basis. Re-measure uncertain areas before buying, and use the manufacturer's instructions to decide a suitable allowance.
Common mistakes to avoid
- Convert millimetres, centimetres and metres before combining measurements.
- Do not add the same waste allowance at both measurement and ordering stages.
- Check irregular shapes, openings, substrate conditions and manufacturer coverage separately.
Assumptions and sources
Density and swell depend on soil and moisture. Excludes excavation support, hazardous material, permits and classified waste acceptance charges.
If your case falls outside this scope, use a more suitable calculator or contact us about an unclear method.