Garden guide
Gravel Grids vs Loose Gravel: Which Is Right for Your Driveway?
The short version
For garden paths and decorative areas, loose gravel over a weed membrane does the job beautifully and cheaply. For driveways with regular car traffic, gravel grids are worth every penny — they stop the rutting, spreading and constant topping-up that loose gravel suffers under wheels.
The problem with loose gravel on driveways
Car tyres push gravel sideways, carving ruts along the wheel lines and scattering stones onto the road and lawn. You end up raking it back every few weeks and topping up every year or two. Loose gravel also needs to be laid deeper — around 10cm — to survive traffic, which means more material to buy.
What grids actually do
Gravel grids are interlocking honeycomb panels laid over the sub-base before the gravel goes on. The cell walls hold the stones in place and spread the vehicle's weight, so a 3–4cm layer of gravel performs like a much deeper one. The surface stays flat, gravel stops migrating, and it stays fully permeable — which matters, because front-garden driveways with permeable surfaces usually avoid needing planning permission.
The honest cost comparison
Grids add an upfront cost per square metre, plus a little extra labour. But you buy roughly a third less gravel (shallower layer), skip the constant topping-up, and avoid the raked-out look. Over five years of driveway use, grids usually come out cheaper as well as tidier. For a footpath? Save your money and go loose.
Working out quantities
Grids are sold by the square metre, so your driveway area is the number you need. For gravel, the maths is area (m²) × depth (cm) × 10 = litres — shallower with grids, deeper without. Our gravel calculator handles both: it prices the gravel and can add stabilising grids and weed membrane to your list automatically.