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Posted: Thu Mar 15, 2018 10:07 pm
by Davidrowe78
Hi.
Converting part of my front garden to park another car. I know I need to dig out to roughly 250mm minimum. How do I ensure arcoss a 28Sqm area that it’s the right depth throughout!
Posted: Fri Mar 16, 2018 7:26 am
by lutonlagerlout
you could knock in pegs with a hammer and use a 1200mm spirit level check each peg is 250mm protruding from the ground then move on
we would use a laser level for this but I guess you do not have access to one
cheers LLL 
Posted: Fri Mar 16, 2018 9:37 am
by Tony McC
You need to set up levels just outside what will be the edge(s) of your propsed area. There's some guidance about how to do that here
Once you have these 'external' levels, you will probably be able to stretch string lines from level to level, or from level to existing paving, and then measure down from that (we call it 'dipping').
Does that make sense?
As LLL syas, a laser level is a real boon for this task nowadays, but some of use are old enough to recall the days before laser levels and we remember how we used to do it. Those contractors who had made a few quid might even use a Cowley Level, which was just about the most awkward method of transferring levels ever discovered!
Posted: Fri Mar 16, 2018 5:28 pm
by lutonlagerlout
think I still have my cowley,not quite sure how much use it was,the water level was easier to use!
LLL