Layerworks and truckloads

Compacted layer volume, the loose volume to order, the tonnage and the truckloads. G5, G6, G7 and crusher run.

✓ Free, no sign-up ✓ Works on your phone, standing at the problem ✓ The formula and the assumptions are always shown

IT CIVILS  ·  IT ADMIN BUSTER
1 Enter the job

Layerworks and truckloads

Worked out at itcivils.com/free/calculators/  ·  Free construction calculators for site teams.
Check every quantity against your own specification and your supplier's own figures before ordering.

A worked example

This is the job the page opens with, already worked out. Change any figure above and the answer changes with it.

The job

Length
100 m
Width
6 m
Compacted thickness
150 mm
Material
G5 gravel
Loose to compacted factor
1.25 ×
Compacted density
2.25 t/m³
Truck capacity
10 m³
Waste
5 %

The answer

118.1m³  ·  Loose material to order

Area
600 m²
Compacted at 150 mm
90 m³
Loose, factor 1.25
112.5 m³
With 5% waste
118.1 m³
Mass, compacted
202.5 tonnes
Loads at 10 m³
12 loads

The working

600 m² × 150 mm = 90 m³ compacted.
× 1.25 for the loose volume, plus 5% = 118.1 m³ to order.

What it assumes

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Every one has its own page, so you can bookmark the one you use most.

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On the job

2 Stay in the loop

Get the next tool when it lands

New tools get built when the admin gets annoying enough. Leave your email and you will hear when the next one lands. What you do on site is what decides what gets built, so it is worth saying.

Why these are free, and what they assume

These come from ten years on site: first in contracting on production and civil works, then in consulting doing construction monitoring for consultants appointed by the City of Cape Town. Working a quantity out twice, because the first answer was on a piece of board that blew away, is a thing that happens to everybody.

Every calculator shows the formula it used and the assumptions it made, because a number with no working behind it is worth nothing on site. Where a figure varies by material or supplier, it is an input you can change rather than something hidden. Check the answers against your own specification and your supplier's own figures before you order. These help you work faster, they do not replace your own judgement.

If they save you time, the paid IT Admin Buster packs cover the admin side: progress report templates, daily diaries, inspection checklists and the wording banks that go with them.