How much slate will I need to order?
My first post, so please excuse such a dumb question! I've got an area of
garden to be covered in a membrane and plum coloured slate to make it kind
of maintenance free.
The area is 133 square metres. What depth do I use, and how many tonnes
would I need (do you order in tonnes or cubic metres?)
Any help would be much appreciated.
Thanks
Phil
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