# 3-5" River rock coverage

Discussion in 'Landscape Architecture and Design' started by LB1234, Apr 16, 2007.

1. ### LB1234LawnSite Gold Memberfrom Central JerseyMessages: 3,210

How many sqft of coverage should I expect out of a cubic yard of 3-5" river rock?

2. ### grandview (2006)LawnSite Gold Memberfrom Lancaster N.Y.Messages: 3,465

Maybe a 10x10 area

3. ### YardProLawnSite Gold Memberfrom coastal NCMessages: 3,567

we use a lot of 3-5 and only get 75 sqft.

4. ### DueksterLawnSite Fanaticfrom DFW, TXMessages: 7,961

Maybe less he said "Yard" not "Ton".

5. ### LB1234LawnSite Gold Memberfrom Central JerseyMessages: 3,210

I know its a bit of a weird question since I stated in in 'yards' not 'tons'.

Reason I ask is that I have an area of a potential job in which the customer wants to replace want amounts to 2 yds of mulch @ 2" depth with 3-5" delaware river rock. I'm just trying to see how to convert a 'yard' of 3-5 RR into a 'yard' of mulch. I mean theoritically speaking you can't have a 2" thick layer of this rock since its smallest size is 3".

Working the calculation backwords I have 325 ft2 I need to cover. Assumming the lower end of the two numbers provided (75) that means I need ~4yds.

Now, next question. Is 1.8 tons per cubic yard an okay conversion for obtaining the price...so 7.2 tons?

6. ### Bigred350LawnSite Senior Memberfrom Florence,ALMessages: 784

Or you could do the math yourself. Lenth x width x depth
THere is 27 cubic feet in a cubic yard.

ahhh....thx