
What kind of gravel can I use as a base for my
We use lima-bean sized crusher run gravel for this kind of thing around here (Montana, alleuvial/clayish soil). The benefit over recycled concrete is that it packs/stays in place better (the rough edges of the gravel end up interlocking in ways that makes them more stable). Suspect your trench will need to be deeper to deal with frost heave. For lower walls (2') we put 1' minimum of gravel, 6
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