big fan of the site, it's been really useful in the past, but I'm just a DIYer and I've hit on a problem that I'd really appreciate some help with from someone more knowledgeable.
I've laid a couple of patios before and I've always done the edging first, then added the sub-base. But for the latest project I'd really like to avoid using any edging to get a crisp, clean modern look to the paving.
Something like this:
But I'm not sure how to go about it. I'm worried that if I just omit the edging the sub base could spread over time into adjacent flowerbeds and cause subsidence or be infiltrated by roots/worms etc.
This is how I've done things in the past:
I thought about using a concealed concrete 'beam' under the perimeter of the paving, but I don't know if it's a good idea or if it would cause differential settlement between the slabs over the concrete and the slabs over the type 1.
Something like this:
Any opinions?
My plan has paving surrounded by flowerbeds (the areas in black). I've already excavated the entire garden to a depth of 150-200mm. I've got 600x400 granite slabs from London Stone and plenty of type 1 waiting to go down, just need to figure out this edging issue before I can crack on.
