Road Planings Explained: The Cheapest Way to Surface a Farm Track, Yard or Access Road in 2026
If you need to improve a farm track, agricultural yard, solar farm access route or temporary construction road, road planings are often the most cost-effective surfacing material available.
They are usually cheaper than new tarmac, concrete and, in some situations, virgin Type 1 MOT. When correctly laid over a suitable base and compacted properly, road planings create a firm, practical surface for tractors, telehandlers, delivery vehicles and site traffic.
The key is understanding where they work best, how much you need and how to prepare the ground.
What are road planings?
Road planings are the milled-off surface removed when an existing asphalt or tarmac road is resurfaced. The reclaimed material is broken down into a granular product made up of bituminous fragments, stone and finer particles.
Once spread and compacted, the material interlocks and can bind together to form a hard-wearing surface. Road planings are sometimes also described as:
Recycled tarmac
Tarmac planings
Asphalt planings
Recycled road surface
Road scalpings
They are not the same as a graded Type 1 MOT sub-base, and they should not automatically be treated as a direct replacement for every engineered aggregate specification. However, they can be an excellent wearing course or economical surface for private roads, farm tracks, yards and access routes.
Why are road planings so cost-effective?
The biggest advantage is that road planings are a recycled product. They have already been quarried, processed and used as part of a road surface, so their production requirements can be lower than those of newly extracted aggregate.
They can reduce project costs in several ways:
Lower material cost than full tarmac or concrete.
No hot asphalt installation is required.
They can often be laid with standard site machinery, such as a grader and vibrating roller.
They make use of recycled construction materials, reducing the need for virgin aggregate.
They are suitable for phased works, allowing a track to be improved in sections as budgets permit.
However, the cheapest material is not always the cheapest completed road. Poor drainage, weak subgrade or inadequate compaction can result in rutting and potholes. A properly prepared base is essential.
Road planings compared with Type 1, tarmac and concrete
Material | Typical use | Main advantages | Limitations |
Road planings | Farm tracks, yards, private access roads and temporary site routes | Cost-effective, recycled, quick to install and good grip | Not a sealed surface; quality and grading can vary |
Type 1 MOT | Structural sub-base beneath roads, yards and hardstandings | Predictable grading and good load-bearing performance | Often more expensive as a finished wearing surface |
Tarmac or asphalt | Permanent roads, busy yards and high-use entrances | Smooth, sealed and easy to sweep | Higher installation cost and requires specialist surfacing |
Concrete | Silage areas, loading bays, livestock yards and heavy point-loading areas | Very durable and resistant to concentrated loads | Highest upfront cost and more complex installation |
For many agricultural and construction applications, the most economical solution is a Type 1 or recycled aggregate base with road planings as the top wearing layer.
How deep should road planings be laid?
The correct depth depends on the ground conditions, expected traffic and whether an existing stone base is already present.
As a general starting point:
Light traffic or an existing sound stone track: 50–75 mm of compacted planings
Farm tracks and moderate agricultural traffic: 75–100 mm of compacted planings
Heavier vehicles or poor ground: use a properly designed sub-base, often 150–300 mm or more, beneath the planings
For new tracks, the GOV.UK hardcore track guidance specifies a minimum 150 mm hardcore layer, followed by a 25–50 mm finer wearing course compacted to create a convex camber. The guidance also highlights the importance of geotextile membranes on subsoil and suitable drainage.
These figures are useful for planning, but they are not a substitute for a site assessment. A track used by regular articulated vehicles will need a stronger construction than one used occasionally by cars or tractors.
How to lay road planings properly
1. Remove topsoil and vegetation
Do not lay planings directly over grass, topsoil or organic material. Strip away vegetation, roots and soft soil until you reach a firm formation.
Existing verges should also be kept under control. If grass and soil encroach onto the track, they can retain moisture and obstruct drainage.
2. Check the ground and install a membrane if needed
Soft clay, wet ground and peat can allow aggregate to disappear into the subgrade. A geotextile membrane can help separate the soil from the stone and reduce contamination.
It is particularly useful where:
The ground pumps or deforms under vehicle loads.
The soil is clay-heavy or waterlogged.
The track is being built over soft subsoil.
The route will carry construction traffic or heavy agricultural machinery.
3. Build a suitable sub-base
For a new track, place a well-graded hardcore or Type 1 sub-base before applying the planings. Recycled aggregates may also be suitable, depending on the required specification and site conditions.
The base should be laid in manageable layers and compacted thoroughly. Do not rely on a thick loose layer to compact itself later under traffic.
You can view DRM’s range of recycled aggregates for construction, access roads and groundwork projects.
4. Spread the planings evenly
Spread the material using a tractor, excavator, loader or grader. Avoid leaving large heaps that are later pushed into place, as this can create inconsistent thickness and weak areas.
Allow some extra material for compaction and local variations in the ground. The finished depth should be measured after compaction, not just when the planings are tipped.
5. Create a camber
A slight convex camber allows rainwater to run towards the edges rather than sitting in wheel tracks.
A flat track may look neat when first installed but can quickly develop puddles, ruts and potholes if water cannot escape. On sloping sites, consider cross-drains, ditches or other stable drainage outlets.
6. Compact with the right equipment
A vibrating roller is usually the best choice for a long track, yard or access road. It provides more consistent compaction than a small wacker plate.
A wacker plate can be useful for:
Small repairs
Narrow sections
Edges and awkward areas
Minor landscaping or building access works
Compact in several passes, working methodically across the full width. If the material is excessively dry and dusty, controlled wetting may help it bind and consolidate, but avoid saturating the formation.
When is the best time to lay road planings?
Road planings can be laid throughout much of the year, but dry or reasonably settled weather is preferable.
Avoid starting when:
The subgrade is saturated and moving under machinery.
Heavy rain is forecast during construction.
Drainage outlets are blocked.
Frost is likely to affect freshly prepared ground.
Some moisture can assist compaction, but waterlogged conditions make it difficult to achieve a stable foundation. After installation, drive carefully while the surface beds in. Repeated braking, sharp turning and driving in exactly the same wheel lines can cause early rutting.
How much road planing material will you need?
The basic calculation is:
Length × width × compacted depth = volume in cubic metres
For example, a track measuring 100 metres long by 3 metres wide with a 75 mm compacted planings layer requires:
100 × 3 × 0.075 = 22.5 cubic metres
As a general planning guide, DRM advises that one cubic metre of aggregate may require approximately 1.8–2.0 tonnes, depending on the product and its compactability. That example could therefore require roughly 41–45 tonnes, before allowing for site variation and wastage.
Always ask your aggregate supplier to confirm the likely tonnage. Product density, moisture content, compaction and access conditions can all affect the final quantity.
If you are searching for aggregate suppliers near me or tarmac road planings near me, compare both the material price and the delivery cost. A lower price per tonne may not be cheaper if the load is travelling from a distant supplier.
Weed control and ongoing maintenance
Road planings are not a guaranteed weed-proof surface. Weeds can grow where soil, leaves and organic debris accumulate, particularly at the edges.
To keep the track in good condition:
Remove soil and vegetation from the surface.
Keep drainage channels clear.
Repair potholes before they become larger.
Recompact areas disturbed by heavy traffic.
Avoid allowing grass verges to spread onto the running surface.
Vary vehicle wheelings where possible.
For badly deteriorated tracks, it may be more economical to scarify, reshape and recompact the existing material rather than remove everything and start again. This approach is also used for reclaiming existing stone and tarmac surfaces. Farmers Weekly explains the track reclamation process here.
A lower-carbon option for farms, solar farms and construction sites
Using recycled road materials can reduce the need for newly quarried aggregate and keep useful construction materials in circulation.
DRM Aggregate Solutions operates from Telford, supplying recycled and quarried aggregates across Telford, Shropshire and the wider Midlands. The company also operates a waste transfer station in Telford, where suitable construction and excavation waste can be accepted and processed.
For site clearance and preparation, DRM can also help with:
Grab lorry hire for removing soil, hardcore and construction waste
Tipper and articulated lorry deliveries
Recycled aggregate supply for tracks, yards and hardstandings
Topsoil, gravel and other materials for landscaping and groundwork
Are road planings right for your project?
Road planings are usually the best-value option when you need a practical, hard-wearing surface and do not require a fully sealed tarmac or concrete finish.
They are particularly suitable for:
Farm tracks and field access
Agricultural yards
Access roads to sheds and barns
Solar farm construction routes
Temporary haul roads
Building site access
Private driveways and hardstandings
Groundworks and landscaping projects
For a firm quotation, provide your supplier with the length, width, required depth, ground conditions, expected vehicle loading and delivery access. DRM Aggregate Solutions can help estimate the required tonnage and arrange delivery across Telford, Shropshire and the Midlands by tipper or articulated lorry.
Contact DRM Aggregate Solutions to discuss road planings, recycled aggregates, delivery and waste removal for your project.
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