How to Lay a Gravel Path – DIY Guide
Lay a gravel path by marking out the route, excavating 100–150mm of soil, compacting a sub-base, laying weed-suppressing membrane, fitting timber or steel edging, then spreading 50mm of gravel evenly. The job takes a day and costs from £50 for a short path.
- Spade
- Garden rake
- Wheelbarrow
- String line and pegs
- Plate compactor or hand tamper
- Tape measure
- Mallet
- Stanley knife
- Gravel (10–20mm decorative or angular)
- Weed-suppressing membrane
- Compacted hardcore or MOT Type 1 sub-base
- Sharp sand
- Timber or steel path edging
- Timber pegs or ground staples
- Galvanised fixing nails or screws
Step-by-Step Guide
Mark Out the Path Route
Use a string line and pegs to define both edges of your path at the width you want — 600mm is comfortable for one person, 900mm for two. Clear any plants, roots, and debris from the area. A straight string line keeps your edging true and saves time correcting a wonky path later. If you are planning a curved path, use a hosepipe laid on the ground to find a natural flowing line before you dig.
Excavate to the Correct Depth
Dig out the path to a depth of 100–150mm below the finished surface level. For a lightly used foot path, 100mm is sufficient; for a path that will take a loaded wheelbarrow regularly, go to 150mm. Remove all topsoil and set it aside for use elsewhere in the garden — filling a raised bed cheaply is a good use for excavated topsoil. Check the base is reasonably level using a spirit level on a long straight edge.
Compact the Sub-base
Spread 75–100mm of compacted hardcore or MOT Type 1 sub-base across the excavated area and compact it firmly using a plate compactor or a hand tamper. A solid sub-base is what prevents the gravel from sinking and the path from becoming uneven over time. Hire a plate compactor for larger paths — hand tamping works fine for a short, narrow run. Finish with a thin blinding layer of sharp sand to level any high spots before you lay the membrane.
Lay Weed-Suppressing Membrane
Roll the membrane across the entire sub-base, overlapping joins by at least 150mm and pinning it down with galvanised ground staples every 500mm. The membrane is the single most important defence against weeds pushing through your gravel — skip it and you will be hand-weeding every few weeks. Trim neatly to the path edges with a Stanley knife, keeping it tight to the sides so gravel cannot work underneath. If you want to understand more about keeping garden beds weed-free too, see our guide to building raised beds cheaply.
Fix the Path Edging
Install timber or steel edging along both sides of the path to contain the gravel and give the finished path a clean, defined edge. Timber edging (75mm × 25mm treated timber is typical) is fixed to short timber pegs driven into the sub-base every 900mm. Steel edging is more durable and bends easily for curved paths. Edging also protects adjacent lawn edges — a detail that matters if you want to keep your lawn in good condition alongside the path. Ensure the top of the edging sits at your intended finished surface level.
Spread and Rake the Gravel
Tip the gravel into the path and spread it evenly with a garden rake to a depth of 50mm across the full width, working from one end to the other. Angular gravel (such as 10mm crushed slate or pea shingle) locks together better underfoot than round pea gravel, which scatters. Rake until the surface is level and the edging is just visible above the gravel line. Top up any low spots and take a final pass with the rake to leave a neat, consistent finish. For patio and path surface comparisons, the best patio materials guide covers gravel alongside other options.
Frequently Asked Questions
How deep should a gravel path be?
Aim for 50mm of gravel on top of a 75–100mm compacted sub-base, giving a total excavation depth of 100–150mm. Shallower than 50mm and the membrane shows through; deeper and the path becomes unstable underfoot.
Do I need planning permission for a gravel path?
In most cases, no. A gravel path in a private garden does not require planning permission. Gravel is a permeable surface, so it does not contribute to surface water run-off issues — unlike impermeable hard surfaces on front driveways, which have their own rules under permitted development. Check gov.uk permitted development guidance if you are unsure about front-of-house works.
What is the best type of gravel for a path?
Angular chippings (crushed granite, slate, or limestone in 10–14mm size) are the best choice for paths. They interlock slightly underfoot and do not roll like round pea gravel, which is uncomfortable to walk on and constantly spills over edging.
How do I stop gravel spreading onto the lawn?
Solid edging boards fixed firmly into the sub-base are the most effective solution. Steel edging with a deep lip is particularly good at retaining gravel. Keep the gravel level at or slightly below the top of the edging, and rake the path back after any heavy use or windfall event.
How much gravel do I need for a path?
Calculate length × width × 0.05 (for a 50mm depth) in metres to get the volume in cubic metres, then multiply by approximately 1,500 to convert to kilograms. Most suppliers sell loose gravel by the tonne or in 25kg bags — allow 10% extra for compaction and wastage.
Before you lay the membrane, dampen the compacted sub-base lightly and allow it to settle overnight if rain is forecast — this reveals any soft spots that need additional compaction before you commit to the finished surface. A path that fails always fails at the sub-base, not the gravel.
Sources
- RHS — Paths and edging: materials and construction — rhs.org.uk
- GOV.UK — Permitted development rights for householders — gov.uk
- Which? — How to create a gravel garden — which.co.uk
This guide is for general information only. Always work safely and follow manufacturer instructions. DIYnut accepts no liability for injury or damage arising from DIY work.
