Question: Our lot in San Francisco is highly sloped & sandy (access a problem). Terracing is prob the best way to get some use out of it; to plant small fruit trees and a garden. I prefer to do myself instead of hiring a landscaping company. Railroad ties too heavy and cumbersome. Concrete and retaining walls blocks would not be easy to get level in the sand. Pressure treated wood or Trex? Where do I start?
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