Gravel Driveway Material Types
A proper gravel driveway is typically built in layers, not one single material: a base layer of larger pit run or crusher run stone for structure, topped with a finer surface layer (often 3/4" minus, which compacts tightly) for a smooth drivable surface.
Crusher run (crushed stone with fines that lock together when compacted) is the standard choice for driveway surfaces because it packs down hard and sheds water well. Pea gravel and other rounded stones look nice but don't compact or lock together, making them a poor structural choice for a driveway surface, though they're sometimes used decoratively alongside the drivable section.
Get a direct quote from Natural Stone Source Ontario for the right gravel for your driveway.
Choosing Between Driveway Gravels
Driveway gravels fall into three practical groups. Coarse crushed base material, with a wide range of particle sizes including fines, compacts hard and forms the structural layer. Finer crushed material with fines makes a tighter driving surface over that base. Clear or washed stone, which has no fines, drains freely but never locks together and will always stay loose underfoot and under tyres.
The common mistake is building a whole driveway from clear stone because it looks clean. Without fines nothing binds, so it migrates, ruts and scatters. Clear stone belongs in drainage layers, not as a driving surface.
Frequently Asked Questions
What is the difference between crushed gravel and clear stone?
Crushed gravel contains fines, the dust and small particles that fill the gaps and let the material compact and lock together. Clear stone is washed with the fines removed, so it drains freely but never binds. Crushed material makes driving surfaces, clear stone makes drainage layers.
What gravel should go on top of a driveway?
A finer crushed material containing fines, over a coarser compacted base. That combination gives a surface that packs down and sheds water while the base beneath carries the load.
Why does my gravel keep moving and scattering?
Usually because the material has no fines to bind it, or because there is no compacted base beneath it. Clear washed stone will always move underfoot. Switching the surface course to a crushed material with fines, over a proper base, resolves it.
How often does a gravel driveway need topping up?
Most residential driveways need a surface refresh every few years, depending on traffic, grade and drainage. Driveways that hold water or lack a crown need it far more often, so correcting drainage usually costs less over time than repeatedly adding stone.