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Old 10-10-2011, 09:55 PM   #1
Join Date: May 2009
Location: Victoria, Canada
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Do I need gravel under rocks?

I've built retaining walls with dry-stacked rocks and have used several inches of gravel under the bottom stones. Now I'm building a single-level circular retaining wall, i.e. Just one level of 8 to 12" thick stone--not mortared. Should I add gravel underneath i.e. for drainage or stability? I live in Victoria, British Columbia where the winters are not too bad. The average winter daily high and low temperatures are 8.2C and 3.6C, respectively. Thank you.


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