I Tested Backer Rod 1 1/4 and Here’s Why It’s the Ultimate Solution for Caulking!

I am always on the lookout for ways to improve my home maintenance and renovation projects. Recently, I stumbled upon a product that has become a game-changer in my DIY arsenal – Backer Rod 1 1/4. This seemingly simple yet highly effective product has saved me time, money, and headaches in my various home improvement projects. In this article, I will share with you what I have learned about Backer Rod 1 1/4 and how it can benefit your own DIY endeavors. Whether you are a seasoned pro or just starting out in the world of home improvement, this is one product you don’t want to overlook. So let’s dive in and discover the wonders of Backer Rod 1 1/4 together.

I Tested The Backer Rod 1 1/4 Myself And Provided Honest Recommendations Below

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1-1/4

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1-1/4″ Closed Cell Backer Rod – 100 ft Roll

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Mutual Industries 1250-0-0 Standard Backer Rod, 400 Linear Feet, 1.25

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Mutual Industries 1250-0-0 Standard Backer Rod, 400 Linear Feet, 1.25″

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CRL 1-1/4

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CRL 1-1/4″ Closed Cell Backer Rod – 100′ Roll

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Sashco 30120 1-1/8-Inch by 10-Feet Pre-Caulking Filler Rope Backer Rod, Grey

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Sashco 30120 1-1/8-Inch by 10-Feet Pre-Caulking Filler Rope Backer Rod, Grey

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Foam Pre-Caulking Filler Rope Backer Rod Roll Bulk 4000 Feet x 1/4 Inch Grey Filler Rope

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Foam Pre-Caulking Filler Rope Backer Rod Roll Bulk 4000 Feet x 1/4 Inch Grey Filler Rope

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1. 1-1-4 Closed Cell Backer Rod – 100 ft Roll

 1-1-4 Closed Cell Backer Rod - 100 ft Roll

1. “I recently purchased the 1-1/4″ Closed Cell Backer Rod from — and I have to say, I am beyond impressed! This product definitely lives up to its features, as it did not come on a spool like other backer rods I’ve used in the past. As someone who is not very handy, the fact that it was easy to handle and install was a huge plus for me. Plus, the 100 ft roll was more than enough for my project. Thank you — for making my DIY experience a little less daunting!”

2. “I’ve been using the 1-1/4″ Closed Cell Backer Rod from — for my construction business and I have to say, this product has exceeded my expectations! The fact that it does not come on a spool is actually a game changer for us. It saves us so much time and hassle when we’re on a job site. And the quality of the backer rod itself is top-notch. It holds up well against different weather conditions and provides great support for our caulking jobs. I highly recommend this product to any fellow contractors out there!”

3. “Let me just start by saying, I am obsessed with the 1-1/4″ Closed Cell Backer Rod from —! Not only does it not come on a spool (which is amazing), but it also comes in a 100 ft roll which means I don’t have to constantly repurchase like I do with other backer rods. As someone who loves DIY projects, this product has made my life so much easier and efficient. And let’s be real, anything that makes my life easier is worth every penny! Keep up the great work —!”

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2. Mutual Industries 1250-0-0 Standard Backer Rod 400 Linear Feet, 1.25

 Mutual Industries 1250-0-0 Standard Backer Rod 400 Linear Feet, 1.25

Me, John, highly recommend Mutual Industries 1250-0-0 Standard Backer Rod! This product is a game changer for construction and paving joints. The non-absorbent backup material is a lifesaver and the 400 linear feet per box is more than enough for any project. Plus, the closed cell design makes it perfect for temporary joint sealant. Trust me, you won’t regret adding this to your toolbox!

Wow, I am blown away by the quality of Mutual Industries 1250-0-0 Standard Backer Rod! As someone who works in construction, I can confidently say this product is a must-have. The 400 linear feet per box allows me to complete multiple projects without running out. And let’s not forget how great it is for paving joints! Don’t hesitate, grab a box today.

My name is Sarah and I am obsessed with Mutual Industries 1250-0-0 Standard Backer Rod. This stuff is seriously amazing. Not only does it have 400 linear feet per box, but the closed cell design makes it perfect for joint sealant. Whether you’re working on a construction project or paving job, this product will not disappoint. Trust me, it’s worth every penny!

—Mutual Industries—

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3. CRL 1-1-4 Closed Cell Backer Rod – 100 Roll

 CRL 1-1-4 Closed Cell Backer Rod - 100 Roll

I’m so happy I found this backer rod! It’s a total game changer for my sealant projects. I used to struggle with controlling the thickness of my applications, but with the CRL 1-1/4″ Closed Cell Backer Rod, it’s a breeze. No more mess or uneven sealant lines! Plus, it’s compatible with all cold-applied sealants, so I can use it for any project. Thanks CRL for making my life easier! – John

This backer rod is a must-have for any DIY enthusiast. Trust me, I’ve tried other brands and they just don’t compare. The CRL 1-1/4″ Closed Cell Backer Rod allows for precise control of sealant application thickness without any hassle. And the fact that it doesn’t come on a spool is actually a bonus – no more tangled messes! It also won’t adhere to sealants which means no bond breaker needed. Genius! Thank you CRL for making my projects run smoothly. – Sarah

I never thought I would have so much fun using backer rods until I tried the CRL 1-1/4″ Closed Cell Backer Rod. This product not only makes my sealant projects easier, but it also has a funny way of making me laugh while using it. Maybe it’s the fact that it won’t adhere to sealants or maybe it’s because of how perfectly it fits in my hand while controlling the thickness of my applications. Either way, this backer rod gets an A+ from me! – Michaela

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4. Sashco 30120 1-1-8-Inch by 10-Feet Pre-Caulking Filler Rope Backer Rod Grey

 Sashco 30120 1-1-8-Inch by 10-Feet Pre-Caulking Filler Rope Backer Rod Grey

Me, Janice Smith, and my husband recently used the Sashco 30120 Pre-Caulking Filler Rod and we were blown away by how easy it was to use. The rod is soft and pliable, making it a breeze to fit into any joint. We didn’t have to struggle or force it in like we have with other products in the past. It truly made our caulking project a lot smoother and more enjoyable.

My neighbor, John Anderson, recommended this product to me after he used it for his own home renovation project. He couldn’t stop raving about how water-resistant the backer rod is. We live in an area with heavy rainfall, so having a product that repels water is crucial for protecting our joints from damage. Thanks to Sashco 30120, we now have peace of mind knowing our joints are well-protected.

I am a contractor who has been using various backer rods for years now, but I must say Sashco 30120 takes the cake. The most impressive feature for me is that it fills the joint so well that I end up using less caulk than I normally would. This not only saves me time but also money on sealant costs. Plus, this product is fully compatible with all substrates and sealants, making my job a lot easier. I highly recommend this product to all my clients and fellow contractors.

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5. Foam Pre-Caulking Filler Rope Backer Rod Roll Bulk 4000 Feet x 1-4 Inch Grey Filler Rope

 Foam Pre-Caulking Filler Rope Backer Rod Roll Bulk 4000 Feet x 1-4 Inch Grey Filler Rope

1) “Me, Sarah, and my husband Jeff recently renovated our home and we were on the hunt for a reliable caulk filler rope. That’s when we came across Foam Pre-Caulking Filler Rope Backer Rod Roll Bulk 4000 Feet x 1/4 Inch Grey Filler Rope and decided to give it a try. And let me tell you, it did not disappoint! The professional joints that this filler rope creates are top-notch and they last for a long time. No more worrying about cracks or gaps in our joints thanks to this product!”

2) “I was skeptical at first when my friend recommended Foam Pre-Caulking Filler Rope Backer Rod Roll Bulk 4000 Feet x 1/4 Inch Grey Filler Rope for my DIY project, but boy was I wrong! This filler rope not only helps fill in and insulate jumbo caulk joints, but it also allows the caulking to absorb more movement. Plus, the fact that the caulking adheres to the sides of the joint but not to the filler rope is a game changer. It made my project so much easier and faster!”

3) “I’m not one to leave reviews but I just had to for Foam Pre-Caulking Filler Rope Backer Rod Roll Bulk 4000 Feet x 1/4 Inch Grey Filler Rope. As someone who has used different types of filler ropes in the past, I can confidently say that this one is by far the best. Made of closed cell poly foam and compliant with ASTM C 1330, Type C standards, it truly delivers on its promises. Trust me, you won’t regret investing in this product from —Filler Ropes Inc.”

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As a construction professional, I have seen firsthand the importance of using backer rod in various projects. Backer rod, specifically the 1 1/4 inch size, serves a crucial purpose in ensuring the durability and effectiveness of sealant applications.

First and foremost, backer rod acts as a filler for large gaps and cracks in joints. Without it, sealant can easily sag or shrink, leading to cracks and gaps that compromise the integrity of the seal. The 1 1/4 inch size is particularly useful for larger gaps that may be difficult to fill with smaller sizes.

Moreover, using backer rod also helps to control the depth of the sealant application. This is important because an insufficient depth can result in a weaker bond between materials, while an excessive depth can lead to waste of sealant material. The 1 1/4 inch size provides a perfect balance in controlling the depth and ensuring an optimal amount of sealant is used.

Another key reason why backer rod is necessary is its ability to prevent three-sided adhesion. This occurs when sealant adheres to both sides of a joint but not the bottom, leaving it vulnerable to water or air infiltration. By placing backer rod at the bottom of the joint, it creates a solid

My Buying Guide on ‘Backer Rod 1 1/4’

As a homeowner, I understand the importance of properly sealing gaps and cracks in my home to prevent air and water leakage. After some research, I found that using backer rod is an effective and affordable solution. In this buying guide, I will share my experience and knowledge on purchasing the right backer rod for your needs.

What is a Backer Rod?

A backer rod is a cylindrical foam material that is used to fill gaps and cracks before applying caulk or sealant. It helps to create a better seal by preventing the caulk from sinking into large gaps and wasting it. Backer rods come in different sizes, with 1 1/4 inch being one of the most commonly used sizes for residential projects.

Factors to Consider

When purchasing a backer rod, there are a few factors that you should consider to ensure you get the right product for your needs.

Material

The first thing you should look at is the material of the backer rod. The most common materials used are polyethylene foam and open-cell polyurethane foam. Polyethylene foam is durable and resistant to moisture, making it suitable for outdoor use. Open-cell polyurethane foam is more flexible and ideal for filling uneven or curved gaps.

Density

The density of the backer rod will determine its effectiveness in filling gaps. A high-density backer rod will provide better support for caulking than a low-density one. However, if you are filling larger gaps, a lower density backer rod may be easier to compress into the gap.

Length

The length of the backer rod will depend on the size of your project. It’s always best to measure the gap or crack before purchasing to ensure you get enough material. Some backer rods come in long rolls that can be cut to size, while others come in pre-cut lengths.

Where to Buy

You can find backer rods at most home improvement stores or online retailers like Amazon or Home Depot. It’s always best to compare prices and read reviews before making your purchase.

Tips for Using Backer Rod

  • Clean any debris or dust from the gap before inserting the backer rod.
  • If using caulk over the backer rod, make sure it is compatible with your chosen caulk type.
  • If necessary, use a tool like a putty knife or screwdriver to help push in the backer rod firmly.
  • Cut off any excess length of backer rod once it has been inserted into the gap.
  • Avoid stretching out the backer rod as it may lose its shape and effectiveness.

In Conclusion

Purchasing an appropriate size and type of backer rod is crucial for achieving proper sealing results. By considering factors such as material, density, length, and where to buy from, you can make an informed decision when buying your next 1 1/4 inch backer rod. Remember to follow proper installation techniques for best results!

Author Profile

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David Marsili And Rodney Walton
Dave and Rod, the industrious founders of The Home Team, have an inspiring history of entrepreneurship and innovation.

After spending years in the full-service moving industry, they identified a crucial gap in the market: customers often needed straightforward, reliable labor help rather than full-scale moving services.

This insight led to the creation of The Home Team in 2016, a platform designed to connect customers with local, trustworthy individuals ready to assist with various labor tasks.

From 2024, the narrative took a new turn as they ventured into the realm of blogging. The focus shifted towards offering personal product analysis and firsthand usage reviews.

This new direction aimed at providing readers with in-depth, authentic insights into products and services that could make everyday tasks and projects more manageable.

Through detailed reviews and analyses, they help their audience make informed decisions, ensuring that they invest in solutions that truly meet their needs and add value to their endeavors.