How to Build a Retaining Wall (and Why They Fail)

How to Build a Retaining Wall

Retaining walls fail for a number of reasons and I want you guys and gals out there that are installing retaining walls to learn a few tips and tricks of the trade that will help you improve your installation skill, and we'll separate you from the herd. What I am going to show you at the site today is a really common reason why a retaining wall falls apart. The first thing that we look at is the choice of blocks. A lot of times, landscapers will migrate towards the cheapest block and they tend to be hollow and have a lip on the back and neck. They're solid on the top and then they're hollow on the bottom, and what happens is that water can get trapped in there between the cavity and it has nowhere to go. Then it goes through a freeze-thaw cycle, expands, contracts and pushes the blocks over. They also have an inadequate pinning system. Because they're light, they're easy to pick up and they're fast to install. You see they have their connection method...

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