Do you have a retaining wall that seems unstable? Are the blocks not fitting quite right, or maybe there’s a big gap between them? Don’t worry; it’s easy to fix! All you need is a little bit of dirt and some patience. In this blog post, we’ll show you how to shim retaining wall blocks, so they fit perfectly and stay in place. Keep reading to learn more.
Can You Shim Retaining Wall Blocks?
When you build a retaining wall, the most important factor is to make sure that the wall is stable. This means that the blocks need to be level and flush with each other in order to create a strong foundation. Unfortunately, retaining walls can start to sag or lean over time due to soil settling or water damage.
If this happens, you may need to shim the blocks in order to level out the wall. Shimming is simply the process of adding a small piece of material (usually wood or metal) in between the blocks in order to fill any gaps and make the surface level again.
While it may seem like a daunting task, shimming a retaining wall is actually fairly straightforward. With a little bit of patience and effort, you can have your wall looking like new in no time.
Why Should You Shim Retaining Wall Blocks?
Retaining wall blocks are an attractive and sturdy way to create a retaining wall. They are easy to install and come in a variety of colors and textures.
However, if the blocks are not installed properly, they can become loose over time and cause the wall to collapse. One way to ensure that the blocks are installed correctly is to shim them.
This simply means that you insert a small piece of wood or metal between the block and the ground to level it off.
Shimming is especially important at the corners of the wall, where the blocks are more likely to shift.
By taking the time to shim your retaining wall blocks, you can rest assured that your wall will be stable for years to come.
Tools and Materials Needed
- Retaining wall block
- Trowel
- Shim material (we recommend using plastic or metal)
- Level
- Wheelbarrow (optional)
- Soil (optional)
- Gravel (optional)
7 Steps to Follow on How to Shim Retaining Wall Blocks
Step 1. Check for Level
Before you start shimming retaining wall blocks, you must ensure the wall is level. If the wall is not level, the blocks will not sit evenly, and the wall will be unstable. Use a level to check for levels and make adjustments as necessary.
Step 2. Find the Lowest Block
Once you have determined that the wall is level, you must find the lowest block. This will be the starting point for your shimming. Use a tape measure to find the lowest block and mark it with a pencil, so you know where to start.
Step 3. Cut Shims as Needed
Once you have found the lowest block, you need to cut shims as needed. Shims are thin pieces of wood or metal that are used to fill in gaps. You will need to cut slightly smaller shims than the gaps between the blocks.
Step 4. Place Shims in Gap
After you have cut the shims, you need to place them in the gap between the blocks. Make sure that the shims are snug against both sides of the gap. You may need to use a hammer to tap them into place.
Step 5. Check for Level Again
After placing the shims in all the gaps, you need to check for level again. Use a level to check for levels and make adjustments as necessary. It is important to ensure the wall is level before proceeding to the next step.
Step 6. Apply Mortar Mix
Once you have ensured the wall is level, you can apply mortar mix to the joints between the blocks. Mortar mix is a type of concrete that is used to bond bricks or stones together. Apply mortar mix to all of the joints and use a trowel to smooth it out.
Step 7. Allow Mortar Mix to Dry
After applying mortar mix to all of the joints, you need to allow it to dry completely before proceeding. Depending on the type of mortar mix that you use, it may take several hours or even days for it to dry completely. Make sure to check the instructions on the package for drying times.
Once you have followed these steps, your retaining wall blocks should be shimmed properly and ready to use.
That’s it! You’ve now learned how to shim retaining wall blocks. With the right tools and a little know-how, it’s easy to create a stable and attractive retaining wall that will last for years to come.
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Things You Need to Know Before Shimming Retaining Wall Blocks
Sometimes, the soil around your home can settle unevenly. This can cause cracks in your foundation or make your doors and windows hard to open and close. If you have a retaining wall on your property, this settling can also cause the blocks to shift out of alignment.
When this happens, you’ll need to shim the blocks to level them out again. But before you start shimming, there are a few things you need to know.
First, it’s important to identify the highest and lowest points of the wall.
You’ll want to start by shimming the blocks at the lowest point, so that they’re all level with each other. Then, you can work your way up to the highest point.
Second, you’ll need to choose the right type of shims for the job. There are a variety of materials you can use, including plastic, metal, and even wood. But for most applications, wooden shims are the best choice. They’re easy to work with, and they won’t damage the blocks if you need to remove them later.
Finally, when you’re ready to start shimming, be sure to do it gradually. Add a few shims at a time and check the wall for levelness before adding any more. By following these tips, you can ensure that your retaining wall will stay level and stable for years to come.
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5 Benefits of Shimming Retaining Wall Blocks
1. Increased Stability
One of the primary benefits of shimming retaining wall blocks is that it increases the stability of the wall. By shimming the blocks, you are essentially increasing the surface area that is in contact with the ground, which helps to increase the overall stability of the wall.
2. Improved Aesthetics
Another benefit of shimming retaining wall blocks is that they can improve the aesthetics of the wall.
When the blocks are properly shimmed, they will appear level and even, giving the wall a more polished and professional look.
3. Enhanced Durability
Shimming retaining wall blocks can also enhance the durability of the wall. When properly shimmed, the blocks will be less likely to shift or settle over time, which can eventually lead to cracks and other damage.
4. Reduced Maintenance
Shimming retaining wall blocks can also reduce the amount of maintenance that is required. When the blocks are properly shimmed, they will be less likely to shift or settle over time, which can eventually lead to cracks and other damage.
Additionally, shimming the blocks can help to prevent weeds from growing between them, which can save you time and money in the long run.
5. Increased Value
Finally, shimming retaining wall blocks can also increase the value of your home or business. A well-built and well-maintained retaining wall can add curb appeal and value to your property, so if you ever decide to sell, you may be able to get a higher price for your home or business.
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Some Common Mistakes People Make When Trying to Shimming Retaining Wall Blocks
When trying to shim retaining wall blocks, the first thing you need to do is make sure that the surface is level. Once you have a level surface, the next step is to find the high point of the wall. To do this, you will need to measure from the ground up to the top of the wall at several points along the length of the wall.
Once you have found the high point, you will then need to mark this point on the ground. The next step is to start shimming at this point, using a small piece of wood or metal to prop up the block. You will then need to work your way down the length of the wall, shimming each block as you go.
It is important to avoid over shimming, as this can cause the retaining wall to collapse. Finally, once you reach the end of the wall, you will need to check that all of the blocks are level before proceeding.
These are just a few tips to help you avoid common mistakes when shimming retaining wall blocks. By following these tips, you can be sure that your retaining wall will be built correctly and last many years.
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Conclusion
Shimming retaining wall blocks is important to ensure that your wall structure is secure and level. Be sure to use the correct materials, take all necessary precautions, and be patient when shimming.
With proper diligence and care, you can create a sturdy and lasting retaining wall that will enhance your outdoor space for years to come. Thanks for reading our post about how to shim retaining wall blocks.
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