Hi. I am starting to plan out two small timber retaining walls each about 400 mm high, and 2.4 m long. There will be soil up to the top of the wall. I am wondering about drainage: should I put perforated pipe behind, covered with clean gravel? or would just gravel do? or something else entirely? or maybe drainage isn't even necessary at this height and length.
drainage behind timber retaining wall
- Thread starter wrathkeg
- Start date
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