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Constructing Inside 90-Degree Corners

14:21
19:47
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At 14:21 in

How To Build an Engineered Retaining wall & Avoid Contractors that cut corners

What happens here

For inside 90-degree corners, instead of cutting blocks in half (which weakens the corner), over-build the corner by extending full blocks past the corner, creating an interlocking design. This technique adds significant strength and longevity to the corner. The video demonstrates how to layer the blocks so that each course overlaps and interlocks, forming a robust corner. While this method may use slightly more material, the increase in structural integrity far outweighs the additional cost.

Goal: Build strong and stable inside 90-degree corners for the retaining wall.

Tools and materials

  • Retaining Wall Blocks — Constructing the corners with an interlocking pattern

What they say

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[Laughter] All right. So, um Blaine, can you actually hold camera for me? Cuz this is a really well done 90° inside corner. This is actually an overbuilt 90° inside corner. One of the things that I want to point out to you guys is a n the 90° corner is actually here. And Blaine's actually got it overbuilt all the way over here because now instead of cutting half C's or half blocks, he's utilizing a full block. It does eat up a little bit more material, but the longevity, the strength of this 90° corner in comparison to something where you literally snip blocks in half, there's no comparison. This is the way you want your 90° corner. So, let me let me come in here and show these guys exactly a closeup of it. You can see that the 90° actually stops there and he's built it out that way. He's built all the block all the way up on top of each other and brought it all the way back. You see? See? I mean, look at this. This entire block right here isn't even needed technically, but in our book, that adds strength to the entire inside corner. So, add it if you can add it. It's the right way to do it. If this was my house, this is how I'd want my 90° corners built. Damn.

Auto-generated from the video audio.