How deep should gravel be for a driveway

Question

What is standard and why would one tradesman quote for doing it deeper than another?

Lee · Accepted Answer

Depending on what stone, with a shingle stone no more than 2 inch’s but with a square cut stone like Cotswold stone or a lime stone chipping up to 4 inch’s as it compacts down .

Tom · Answer

50mm gravel and around 150mm sub base , some tradesmen may do it deeper at the customers requirements

Richard · Answer

There is no specific depth for a gravel driveway but if it was previously soft ground would preferably need digging out and a sub base putting in

Simon · Answer

You want to cover the subbase but you dont want to wheel spin and throw up the stones , personally i would say anywhere from 50 to 75mm  max.

Brendan · Answer

20mm is plenty deep enough or your car will sink and skid

Ross · Answer

2 inch max otherwise it just piles up from cars. Have you looked at the grids you can put down first

Gaynor · Answer

Hi,
The most important factor is the sub base. As long as you put down a decent depth of hardcore for the sub base then 2-3 inches of gravel is fine. As with a lot of landscaping jobs its the parts you don't see that make the difference.
Gentle Touch Gardening

Lee · Answer

The gravel should be 50mm for any type of stone on a tightly compacted sub base

Michael · Answer

Roughly about 60mm with 10mm either way depending on the angle and way the customer likes

Jacob · Answer

Depending on the gravel used and the size of the aggregate depends on the depth ideally you would want a sub base of about 4/5inches roller edge and then 1/3 inces of gravel again depending on the type and size.

How deep should gravel be for a driveway

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