Note, however, that most jurisdictions require permits and engineering drawings for all retaining walls over 3 to 4 feet in ...

Building a stackable retaining wall may seem like a project for a professional, but it's actually something you can do ...

Walther noted that for higher retaining walls, the savings would be even greater. He said: “As the average retaining wall height increases, so will the savings and the Secura Portal will work it all ...