The Brew Cabin

Posted: **Tue Apr 14, 2009 10:48 am**

I am laying a stone patio and have consolidated the subgrade and subbase in anticipation of remaining layers.My dilema is I have a lot of what my local builders merchant calls "ballast"or "20mm stone to dust" left over from another part of my house project.Would this be suitable or even preferable to use to bring level up to bedding layer instead of compacted and screeded sharp sand? I imagine it will be harder to screed,but is it ok to use?

Posted: **Tue Apr 14, 2009 5:18 pm**

Yes - it will be OK for a patio. I'd be reluctant to use iot for a driveway, but you should be fine using it beneath a patio

Posted: **Wed Apr 15, 2009 8:07 am**

Thanks Tony but just out of interest does this sugest that compacted sharp sand is prefrable?

Posted: **Wed Apr 15, 2009 8:33 am**

Not for a DIYer - use mortar: see Bedding Materials

The Brew Cabin

Subbase - Choices