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Posted: Fri May 26, 2006 3:56 pm
by halster78
Hi,
I need some help on deciding whether or not to lay a sub base or not,
I have a 71 metre square back garden that I want to completely gravel over with some slabs laid in amongst the gravel.
Do I need to lay a 75mmm compacted sub base? or will permeable fabric and about 35mm or compacted gravel do?
Cheers
Al
Posted: Fri May 26, 2006 9:46 pm
by carlbeardsmore
You are opening your self up for some abuse... 
. I will love Tonys reply...
Posted: Fri May 26, 2006 10:00 pm
by halster78
Why am I?
Posted: Mon May 29, 2006 9:00 pm
by rms
You only need a sub base if the ground is exceptionally soft.
Posted: Tue May 30, 2006 5:12 pm
by Nigel Walker
Every single job i do without exception has Dpt1 Sub Base laid.
Any area with pedestrian traffic only has a minimum of 50mm of Sub Base. On driveways I lay a minimum of 100-150mm of Sub Base.
I would not be able to sleep at night if I laid any paving (inc gravel) on ground without sub base.
I would never consider laying any type of paving without Sub Base.
I know Tony says you dont need Sub Base in certain circumstances, but I am of the belief - do it right, do it once.
It may cost a little more to dig out deeper and in-fill with sub base, but in my opinion well worth it.
Sorry Tony if this contradicts you !
Posted: Tue May 30, 2006 7:18 pm
by Stuarty
I have to agree with rms on this one, seems each to their own with this
Posted: Sat Jun 03, 2006 6:34 pm
by Tony McC
I know plenty contractors use a sub-base for patios, and while I wouldn't say that it's wrong, I do feel that it's not always justified. But, as Nigel says, if a jobs worth doing....
I wonder what happened to the OP? Maybe he found the main wwebsite and educated himself during my absence!