How To Prepare Your Retaining Wall Base And First Course A trench is key to building a stable retaining wall because it'll serve as the foundation. To start, mark the length and width of your wall ...

So, if you're planning to build a 4-foot retaining wall, convert 4 feet to inches (4 times 12) to get 48 inches. Then, divide ...

Q – We are thinking about building a retaining wall in our yard. ... Retaining walls measuring more than half the base in height are unstable, and an unstable wall is a dangerous wall.

Riverdale business owners, residents blame retaining wall for flooding 02:31. ... "It was probably up to about three quarters of the base board," he said. It's a new reality for Dr. Wasserman, ...