Size the trench so there's enough room for the retaining wall block and at least 8 in. of space behind it. Excavate deep ...

Q.I'm lucky and have lots of medium to larger rock on my lot that can be easily harvested. I want to build a stackable rock retaining wall that will be about 3 feet tall and hold back that amount of ...

Q: Tim, I’ve seen quite a few failed retaining walls. Many have bulges or have tipped over. What needs to be done to ensure I only do mine one time? I’ve seen photos of walls hundreds of years old ...