How to Build a Retaining Wall - Step by Step Guide



Today we're going to take you step-by-step so that you can build your own retaining wall. Covering some of the most vital parts in retaining wall construction.  Including the excavation and the initial sub-grade protection which will be the main component to the longevity of your wall being straight and perfectly flat-topped, or ending up years down the road having a wave in it. We're going to help you eliminate that. We will also be looking at the material used in your first course of block. How to base and level that most critical element: the very first block that goes in the ground Then we are going to show you how to construct a 90-degree corner in case you happen to have any of those on your site. Take your project from something that looks like this, to something that looks like this.

Step 1

The very first step we've got to do is remove the existing CMU (Concrete Masonry Unit) retaining wall and prep the sub-grade. Most of...

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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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