Alderton, WA (Zone 7B)
|I am wanting to build a flower box using the decorative bricks. I heard that you need to put the weed barrier down then sand under the brick. Is this true and how much sand is needed?
|Answer from NGA
July 29, 2005
|You can place a weed barrier down to keep weeds from sprouting beneath the bricks, but what you really need is a good base of sand on which to level the bricks. It doesn't need to be a very thick layer of sand - two or three inches at most.
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