Coverage (metres/sq) per 10 kg for chippings/stones

[paulfoel]

How do I work out how much I need to say, cover 10sq m?

[The Natural Philosopher]

How deep do you want them?

if its say 5cm - 2 1/2". thats 1/2 cu m or about a tonne.

[dennis]

My local builders merchant will deliver a ton bag of Cotswold chippings for about £50. that will do a layer about 50 mm deep. Other gravels cost different amounts, some are four times that price. Avoid lime stone as it turns to mud if you move it about frequently.

[The Medway Handyman]

'Coverage rates for gravels are typically 15-20 m² per tonne at 35mm thick'.

IME the biggest mistake you can make is to have too thin a layer.

[John Veldman]

Others have answered that point, but make sure you add a landscaping type membrane down or you will get grass and weeds. It will look a mess!

[paulfoel]

Yep. Stuck the membrane down as well. Its surprising how many bags it takes as well.