Why Gravel Paths Earn Their Place in a British Garden

A gravel path is one of the most forgiving DIY projects you can take on. It suits cottage-style planting, modern courtyards and awkward curved routes where slabs would need endless cutting. It drains freely, which matters in a country that specialises in damp winters, and it costs a fraction of paving. Better still, you can build a decent one over a weekend with a shovel, a rake and a borrowed plate compactor.

The catch is that gravel only looks good when the layers underneath are right. Skip the preparation and you get a wobbly, weed-ridden strip that migrates into the borders at the first heavy shower. Do it properly and your path will still be crisp in ten years' time.

Choose the Right Gravel for the Job

Not all gravel behaves the same way underfoot. For a path you'll walk on daily, you want a angular, rough-edged stone that locks together rather than rounded pea shingle, which rolls about like ball bearings and never settles.

• 20mm gravel is the classic choice for paths. It's comfortable to walk on, stays put reasonably well and is easy to rake.
• 10mm gravel looks smarter and is kinder to bare feet, but it can be kicked about more easily. It's ideal for smaller courtyards.
• Self-binding gravel (sometimes sold as hoggin or golden gravel) compacts into a firm, almost smooth surface. It's lovely for formal routes but needs proper edging and a firm sub-base.
• Avoid pea shingle on slopes and anywhere you want stability. It's fine as a decorative mulch, not as a path surface.

As a rough guide, one tonne of 20mm gravel covers about 10 square metres at a 50mm depth. Order a little more than you calculate, since you'll always lose some to the borders.

Preparing the Ground Properly

This is where most paths succeed or fail. Start by marking out the route with pegs and string, then strip the turf and topsoil to a depth of around 100mm. Keep the good topsoil for the borders; it's far too valuable to skip.

Next, excavate a little deeper: aim for roughly 150mm total below your finished path level. That gives you 75–100mm of sub-base, a membrane, and 40–50mm of gravel on top.

Now firm the bare ground. If it's soft clay, add a layer of MOT Type 1 hardcore and compact it in two passes with a plate compactor, watering lightly between passes to help it bind. Check the level with a straight timber and a spirit level as you go, and build in a gentle fall of about 1:60 across the width so rainwater runs off rather than pooling.

Once the sub-base is firm and level, lay a woven geotextile membrane over the whole area. This stops the gravel sinking into the soil and blocks most weed growth from below. Overlap the seams by at least 100mm.

Edging: The Detail That Keeps Everything Neat

Without a solid edge, gravel wanders. Edging holds the surface at a consistent depth, defines the shape and keeps the path from merging with the lawn.

• Treated timber is cheap and simple. Use 100 x 50mm boards, set them so the top sits about 10mm above the gravel, and peg them every 600mm with stout stakes.
• Steel edging gives a slim, contemporary line and bends beautifully around curves. It costs more but lasts decades.
• Granite setts or brick look traditional and double as a mowing strip. Set them on a mortar bed with a concrete haunch behind for stability.

Whatever you choose, make sure it's genuinely secure before you tip a single barrow of gravel. Fix the edge, then walk away and let any mortar cure overnight if you've used it.

Laying and Compacting the Gravel

Tip the gravel in small piles along the path and spread it with a rake, working backwards so you don't tread on finished sections. Aim for a depth of 40–50mm once compacted, which means spreading slightly more than that.

Now compact. A plate compactor does this far better than a hand tamper, and most tool hire shops will lend you one for a day. Run it over the surface in overlapping passes, then top up any low spots and go over them again. The gravel should feel firm and knitted together, not loose underfoot.

Finally, brush the surface lightly to settle the top layer and check your levels. If you've used a loose decorative gravel on top of a self-binding base, keep it to a thin 15–20mm dressing.

Keeping the Path Looking Sharp

A little maintenance goes a long way. Top up the gravel every couple of years, especially along the edges where it spreads into beds. Rake it occasionally to redistribute stones and lift any that have migrated onto the lawn.

Weeds will still appear from wind-blown seed, but they pull out easily from a membrane base. Tackle them while small rather than letting them establish. In autumn, clear fallen leaves promptly, as damp debris encourages moss and algae.

If the surface ever feels spongy or you notice weeds coming through in patches, that usually signals the membrane has been punctured or the sub-base wasn't compacted enough. Lifting the gravel, re-compacting and patching the membrane is a straightforward fix. Get the layers right from the start and a gravel path becomes one of the most hard-working, low-fuss features in the garden.