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Posted: Fri May 28, 2010 10:30 pm
by Mikey_C
Due to some bad planning and the wife changing here mind, I now have to put sandstone flags in as retainers, admittedly the above ground part will only be 4". My question is should I use the thicker flags +35mm to be more comparable with the normal 50mm wet pressed concrete edgers or will the thinner 20mm ish be alright.
thanks.
Posted: Sat May 29, 2010 7:31 am
by seanandruby
I would of thought it depends on what your retaining, ie, patio, driveway, earth etc: I would'nt go for 20 ml personally.
Posted: Sat May 29, 2010 8:06 am
by Mikey_C
it is retaining the lawn. i was just unsure as to whether the concrete type were 50mm to give them strength because they are a manufactured product rather than natural.
by virtue of the fact I am asking the question, the idea of using 20mm items didn't that comfortably with me.
Posted: Wed Jun 02, 2010 4:59 pm
by London Stone Paving
I would not retain anyhting with 20mm material. They will not be strong enough!