how thick does concrete need to be garden wall
Another consideration is whether a concrete truck can get to the wall location. Most homeowners should leave walls higher than 3ft to the pros. A poured concrete wall with rebar does not need to be thick to be strong. For walls up to 3ft, 5.5 inches thick works fine.As laag points out, the wall needs a sufficient footer.nother consideration is whether a concrete truck can get to the wall location. Most homeowners should leave walls higher than 3ft to the pros. A poured concrete wall with rebar does not need to be thick to be strong. For walls up to 3ft, 5.5 inches thick works fine.