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How to Prepare Your Waste for a Grab Lorry Collection

Preparing your waste correctly can make a grab lorry collection faster, safer and more cost-effective.

The material should be separated, placed in an accessible pile and positioned within reach of the grab arm. The collection area must also be free from parked vehicles, overhead cables and other hazards.

Before the lorry arrives, you should:

Following these steps reduces the risk of delays, additional charges or an unsuccessful collection.

Why Preparation Matters

A grab lorry uses a hydraulic arm and bucket to lift loose waste directly into the vehicle. The operator therefore needs to position the lorry close enough to reach the pile and operate the equipment safely.

Poor preparation can cause problems when:

A few checks before booking can prevent most of these issues.

1. Identify What Is in the Waste Pile

Start by identifying every material you want removed.

Grab lorries commonly collect:

Do not describe the pile as soil if it also contains timber, plastic, plasterboard, packaging or general rubbish. These materials can change the waste classification and disposal price.

If you are uncertain about anything in the pile, photograph it and ask before booking.

Read our guide to what can and cannot go in a grab lorry before preparing the load.

2. Separate Different Waste Types

Separating waste is one of the most effective ways to control disposal costs.

Create different piles for:

Clean inert material such as soil, bricks and concrete is normally less expensive to process than mixed waste.

If timber, plastic, insulation and packaging are mixed into a soil or rubble pile, the entire load may need to be charged and treated as mixed construction waste.

Separation also improves the amount of material that can be recycled.

3. Remove Prohibited and Hazardous Materials

Inspect the waste carefully before the collection.

A standard grab load must not contain materials such as:

Plasterboard and upholstered furniture also require separate handling and must be declared.

If you suspect that older roofing, insulation, boards, tiles or textured coatings contain asbestos, stop moving the material and seek specialist advice.

Do not bury prohibited materials beneath soil or rubble. The collection may be refused, and the load could require a significantly more expensive disposal route.

4. Keep Plasterboard Separate and Dry

Plasterboard should not be mixed into ordinary soil, rubble or general waste.

Store it:

Tell the operator about plasterboard before booking. Depending on the quantity, a separate collection or container may be required.

Wet or contaminated plasterboard can be more difficult and expensive to process.

5. Place the Waste in One Pile

Where possible, gather the material into one compact and accessible pile.

This allows the operator to:

Avoid leaving small piles throughout the garden or construction site. The grab arm is designed to collect material within its working radius, not to travel around the property gathering individual items.

If the waste cannot be placed in one location, send photographs showing every pile before booking.

6. Position the Pile Within Reach

A typical grab arm can reach approximately six metres, but its practical reach depends on the vehicle, material weight and surrounding obstacles.

Position the waste as close as reasonably possible to a suitable road or hard-standing area.

The arm may be able to reach over:

However, the maximum reach may be reduced by:

Do not rely on the maximum advertised reach without sending photographs and measurements to the operator.

7. Do Not Place Waste Beneath Overhead Cables

Overhead electricity and communication cables are a serious hazard for lifting equipment.

Do not position the waste pile:

The driver may refuse to operate the grab arm if overhead hazards are present.

Photograph the complete area above and around the waste pile, not just the material itself.

If cables cross the site, discuss them with the operator before booking so an alternative collection position can be considered.

8. Check the Road and Vehicle Access

Grab lorries are large commercial vehicles. The road and collection point must provide enough space for the vehicle to approach, stop, operate and leave safely.

Check for:

An eight-wheel grab lorry offers the greatest capacity but requires more operating room. A six-wheel vehicle may be more suitable for a restricted site.

Our guide to choosing the right grab lorry size explains the main differences.

9. Reserve Enough Space for the Lorry

The lorry needs more than a standard car-sized parking space.

It must be able to:

Move private vehicles away from the collection point before the scheduled arrival.

If the road is normally busy with parked cars, you may need to reserve the required space or arrange an authorised parking suspension. Do not place unauthorised cones, bins or objects on a public highway.

Tell the operator if the lorry will need to stop on a controlled road or in a restricted bay.

10. Check Whether Permission Is Required

A grab lorry does not usually need a skip permit because it arrives, loads and leaves rather than remaining on the road.

However, additional arrangements may be required if the lorry needs to:

The customer is responsible for providing accurate access information and obtaining any site-specific permissions agreed as part of the booking.

11. Use a Suitable Loading Location

The lorry will normally remain on the public road or another suitable hard-standing area while the grab arm reaches the waste.

Do not assume the vehicle can drive onto:

A loaded grab lorry is extremely heavy and may damage surfaces not designed to support it.

The driver will decide whether a surface and access route are safe. If there is any doubt, tell the operator in advance and provide photographs.

12. Break Large Objects Into Manageable Pieces

The grab bucket can lift substantial material, but oversized concrete, masonry and timber may be too large or awkward to collect safely.

Before the vehicle arrives:

Do not attempt to break suspected asbestos-containing materials.

If machinery is required to process oversized material, arrange this before the collection date.

13. Remove Bags Where Requested

Grab lorries are principally designed to collect loose waste.

Plastic bags, bulk bags and sacks can:

Ask whether the material should be emptied into a loose pile before collection.

Do not empty bags containing suspicious, hazardous or unknown substances.

14. Estimate the Quantity

Measure the approximate:

  1. Length of the pile
  2. Width of the pile
  3. Average height of the pile

Multiply the measurements to estimate the volume:

Length × width × height = approximate cubic metres

For example, a pile measuring four metres long, two metres wide and one metre high contains approximately eight cubic metres.

This calculation is only a starting point. The actual load requirement depends on:

An eight-wheel grab lorry can typically carry around 14 to 16 tonnes, but heavy material may reach the legal weight limit before the body is physically full.

Read how much waste a grab lorry can carry for more guidance.

15. Allow for Excavated Soil Expanding

Soil increases in volume after it is excavated because compacted ground becomes loose and contains more air.

This means a hole containing six cubic metres of compacted soil can produce a noticeably larger loose pile.

The amount of expansion varies according to:

Do not calculate the number of loads solely from the dimensions of the proposed hole. Allow for the excavated material to expand.

For large projects, ask your builder or groundworker for estimated excavation volumes and tonnages.

16. Send Clear Photographs Before Booking

Photographs are the quickest way to improve the accuracy of your quotation.

Send images showing:

A short video walking from the road to the waste pile can be useful for complicated access.

Do not photograph only the easiest part of the pile. The operator needs to see the complete quantity and every material present.

17. Provide Accurate Booking Information

When requesting a quotation, provide:

Accurate information allows the operator to send the correct vehicle and quote for the correct disposal category.

18. Prepare the Site on Collection Day

Before the lorry arrives:

If the pile is on a construction site, coordinate the collection with deliveries, scaffolding, cranes and other vehicle movements.

19. Keep Everyone Away From the Loading Area

The grab arm, stabilisers and moving waste create a hazardous operating zone.

During loading:

The operator must have a clear view of the material and enough space to work without interruption.

20. Do Not Add More Waste After Receiving the Quote

A quotation is based on the information, photographs and measurements provided.

If additional material is added afterwards, it may:

If the pile changes, send updated photographs before the scheduled collection.

It is better to revise the quotation in advance than discover that the material cannot all be removed on the day.

Common Preparation Mistakes

Mixing soil with general rubbish

This can turn a lower-cost clean load into a more expensive mixed-waste collection.

Hiding plasterboard in rubble

Plasterboard requires separate handling and must be declared.

Positioning waste too far from the road

The grab arm may not reach the complete pile safely.

Ignoring overhead cables

The operator may be unable to use the hydraulic arm.

Underestimating wet soil or clay

Heavy material can reach the lorry’s legal payload sooner than expected.

Blocking the collection point with vehicles

The lorry may be unable to park within working reach.

Leaving oversized concrete intact

Large sections may be too heavy or awkward for the grab bucket.

Providing incomplete photographs

A close-up image does not show volume, access or surrounding hazards.

Adding waste after booking

The vehicle and price may no longer be suitable for the job.

Grab Lorry Collection Checklist

Use this checklist before the scheduled arrival:

Get a Quote for Your Collection

Grab Lorries Hire provides soil, rubble, concrete, hardcore, garden-waste and construction-waste collections across London and the surrounding Home Counties.

For an accurate quotation, send us:

  1. Your postcode
  2. Clear photographs of the waste
  3. Approximate pile measurements
  4. A description of every material
  5. Photographs of the road and access
  6. Your preferred collection date

We can help estimate the number of loads, select the appropriate vehicle and identify anything that must be separated before collection.

Same-day and next-day availability may be offered depending on your location, waste type and vehicle availability.

Call 020 3355 9233 or request a free quote online.

Frequently Asked Questions

Where should I put waste for a grab lorry?

Place it in one accessible pile as close as reasonably possible to a suitable road or hard-standing area. The operator must be able to reach it safely with the hydraulic arm.

How close does the lorry need to be?

A typical grab arm reaches approximately six metres, but obstacles, wall height and material weight can reduce the practical reach.

Should waste be bagged?

Grab lorries generally work best with loose material. Ask the operator whether bags should be emptied before collection.

Do soil and rubble need to be separated?

They can sometimes be collected together, but separating materials may improve recycling and reduce disposal costs. Declare the exact mixture when booking.

Can I leave plasterboard in the pile?

No. Plasterboard should be kept separate, dry and declared before collection.

What photographs should I send?

Send photographs of the complete pile, material close-ups, the road, the distance to the waste, walls or fences and the area above the pile.

Do I need to be present?

Not always. If access, payment and collection instructions have been agreed, collection may be possible without you there. Someone should remain available by telephone.

What happens if the grab arm cannot reach?

The collection may not proceed unless the waste can be moved or the lorry can be safely repositioned. Sending access photographs beforehand helps prevent this.

Can the lorry drive onto my driveway?

Only if the operator considers the access and surface suitable. Residential driveways, drainage covers and paving may not support the weight of a loaded lorry.

How long does loading take?

A straightforward collection will often take around 20 to 30 minutes. Poor access, spread-out waste or undeclared materials can make it take longer.

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