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Posted: Wed Jul 11, 2012 8:16 pm
by AV73
I am just about to start paving a 30 metre squared area in my garden over existing grass. Can anyone tell me how deep I need to be with my bedding? Do I need to lay ballast and then sharp sand on top of that? Should I also use a whacking plate? Don't know what slabs I will use yet, probably 450mm.
I am thinking of using a moist mix too. Any advice would really be appreciated as we've got a little one on the way and I need to get it right!!
Posted: Wed Jul 11, 2012 9:11 pm
by Carberry
Take some time to read the site, all the required information is there.
Can't say for sure how deep you need to go, it depends on ground conditions but at a minimum you will want 75mm for subbase, 30mm for bedding layer and whatever the thickness of your slab is.
Use type 1 for your sub base. You need to use a whacking plate, go over it at least 8 times, once in each direction.
Posted: Wed Jul 11, 2012 9:52 pm
by local patios and driveway
I would go 6inches below finished height. I would also advise laying terram under the type 1
Posted: Wed Jul 11, 2012 10:42 pm
by lutonlagerlout
you need to remove all grass and vegetation first
then make a cup of tea and have a good read
LLL 
Posted: Thu Jul 12, 2012 2:23 pm
by AV73
Thanks for your replies. Much appreciated.