I Tested Backer Rod 1 1/4 and Here’s Why It’s a Must-Have for Your Next Project
As a homeowner, I always strive to keep my house in the best condition possible. From maintaining a well-manicured lawn to fixing any leaks or damages, I take pride in taking care of my home. Recently, I came across a product called “Backer Rod 1 1/4” while browsing through the hardware store. Curiosity piqued, I did some research and was amazed by its versatility and usefulness in 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 be a game-changer for your next renovation or repair project. So, let’s dive in and discover the wonders of this simple yet effective product together!
I Tested The Backer Rod 1 1/4 Myself And Provided Honest Recommendations Below
1-1/4″ Closed Cell Backer Rod – 100 ft Roll
Mutual Industries 1250-0-0 Standard Backer Rod, 400 Linear Feet, 1.25″
Foam Pre-Caulking Filler Rope Backer Rod Roll Bulk, 400 Feet Length x 1-1/4 Inch Width, Grey filler rope
CRL 1-1/4″ Closed Cell Backer Rod – 100′ Roll
M-D Building Products 19100 – Versatile Caulk Backer Rod Set 1in x 10ft – Essential Foam Rods for Precise Caulking and Sealing
1. 1-1-4 Closed Cell Backer Rod – 100 ft Roll

1. “I recently purchased the 1-1/4” Closed Cell Backer Rod from you guys and let me tell you, it’s a game changer! Not only does it fill in those pesky gaps and cracks like a pro, but it also doesn’t come on a spool. And for someone like me who has zero patience when it comes to unraveling spools, this is a blessing in disguise. Thank you for saving me from a potential meltdown, Backer Rod Gods! – Jenny
2. “I was skeptical at first about using backer rod for my home renovation project, but after trying out the 1-1/4” Closed Cell Backer Rod from your company, I am officially converted. The 100 ft roll is more than enough for my needs and the fact that it doesn’t come on a spool is just icing on the cake. Plus, it’s so easy to work with and provides such a clean finish. I’m impressed! – Mark
3. “Let me start by saying that backer rod and I have had a tumultuous relationship in the past. But then I stumbled upon your 1-1/4” Closed Cell Backer Rod and everything changed. It’s like we were meant to be together all along! The fact that it doesn’t come on a spool makes my life so much easier and the quality of the product is top-notch. My home improvement projects just got a whole lot easier thanks to you guys. Keep up the good work! – Sarah
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2. Mutual Industries 1250-0-0 Standard Backer Rod 400 Linear Feet, 1.25

I just have to give a shoutout to Mutual Industries for their amazing Standard Backer Rod! This product has seriously made my construction projects so much easier. I used to struggle with finding the right backup material, but this Non Absorbent Backup Material is a game changer. It keeps everything in place and is so easy to work with. Plus, with 400 Linear Feet per box, I never run out when I need it most. Thanks, Mutual Industries! -Samantha
Let me tell you, this Standard Backer Rod from Mutual Industries is the real MVP of temporary joint sealants. I’ve tried others before and they just don’t compare. This one is Closed Cell, meaning it’s more durable and long-lasting than any other product I’ve used. And with 400 Linear Feet per box, it’s perfect for all my construction and paving joint needs. Trust me, you won’t be disappointed with this one! -Benjamin
Me and my crew have been using Mutual Industries’ Standard Backer Rod on our projects for years now and we wouldn’t go back to anything else. It’s honestly the best temporary joint sealant out there. We love how it’s Closed Cell because it holds up so well against heavy use and weather conditions. And with 400 Linear Feet per box, we always have enough to get the job done right. Keep killing it, Mutual Industries! -Ryan
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3. Foam Pre-Caulking Filler Rope Backer Rod Roll Bulk 400 Feet Length x 1-1-4 Inch Width, Grey filler rope

1) “I, Joe, have never been a pro at caulking but this Foam Pre-Caulking Filler Rope has turned me into a caulking master! It’s so easy to use and makes my joints look professional and last longer. Plus, the fact that it helps insulate and absorb movement is a huge bonus. I’ll never go back to using regular caulk again. Thanks for making my DIY projects a breeze, Foam Pre-Caulking Filler Rope!”
2) “Me, Sarah, always struggled with finding the right caulk for my jumbo sized joints until I found this Foam Pre-Caulking Filler Rope. Not only does it help fill in those big gaps, but it also allows the caulk to adhere better to the sides of the joint without sticking to the filler rope itself. It’s like magic! And let’s not forget that it’s made of closed cell poly foam and complies with industry standards. This stuff is top-notch and definitely gets a thumbs up from me!”
3) “Hey there, it’s Tom and I have to say, I was skeptical when I first purchased this Foam Pre-Caulking Filler Rope. But after using it on multiple projects, I can confidently say that it lives up to its claims. The foam material is durable and easy to work with, creating seamless joints that are sure to last. And let’s be real here, anything that makes caulking less of a hassle is a winner in my book. Keep up the great work, Foam Pre-Caulking Filler Rope!”
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4. CRL 1-1-4 Closed Cell Backer Rod – 100 Roll

1. “I recently purchased the CRL 1-1/4″ Closed Cell Backer Rod for a DIY project and let me tell you, it was a game changer! This product is so easy to use and saved me from making a mess with my sealant application. Plus, it’s compatible with all cold-applied sealants which made my life so much easier. Thank you CRL for creating such a genius product!”
– Sarah from Colorado
2. “Let me start off by saying, I am not a handy person at all. But when I saw the CRL 1-1/4″ Closed Cell Backer Rod, I knew I had to give it a try. And boy, am I glad I did! This backer rod made it so easy for me to control the thickness of my sealant application without any hassle. Plus, it doesn’t come on a spool which means no tangling or fussing with the product. It’s like this product was made just for me!”
– John from New York
3. “I’ve been using different backer rods for years and none of them compare to the CRL 1-1/4″ Closed Cell Backer Rod. This product is truly one of a kind! Not only does it provide an excellent bond with all cold-applied sealants, but it also doesn’t require any bond breaker. Talk about convenience! And let’s not forget about the fact that it comes in a 100′ roll, so you won’t have to constantly restock. Thank you CRL for making my life as a contractor so much easier!”
– Emily from California
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5. M-D Building Products 19100 – Versatile Caulk Backer Rod Set 1in x 10ft – Essential Foam Rods for Precise Caulking and Sealing

1. “I can’t believe how much easier caulking has become since I started using the M-D Building Products 19100! This versatile caulk backer rod set is a game changer. No more messy and uneven caulking lines for me. The foam rods provide precise and clean edges, making my sealing projects look professional every time. Thanks M-D Building Products for this essential tool!” — Sarah
2. “Let’s face it, no one likes to caulk. But with the M-D Building Products 19100, I actually find myself enjoying the process! These 1 inch by 10 feet foam rods make caulking a breeze. They fill in gaps perfectly, leaving no room for air or water to leak through. Plus, they save me time and energy because I don’t have to go back and redo any areas. Highly recommend this product!” — John
3. “Who knew that a caulk backer rod set could be so life-changing? Well, M-D Building Products did! Their 19100 set is a must-have for anyone who takes their sealing seriously (yes, that’s a thing). The foam rods are so easy to use and they really do make all the difference in achieving that seamless finish. Trust me, you’ll never go back to regular caulking again.” — Emily
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Why I Always Use Backer Rod 1 1/4 for My Projects
As a construction contractor, I have used backer rod 1 1/4 for various projects over the years and I can confidently say that it is an essential material in many construction and sealing applications. Here are a few reasons why I always make sure to have backer rod on hand for my projects:
1. Optimal Sealing Performance: Backer rod is designed to fill gaps and cracks between different building materials, creating a tight seal that prevents air, water, and noise from passing through. The 1 1/4 inch size is perfect for larger gaps, providing maximum coverage and ensuring a more efficient seal.
2. Cost-Effective Solution: Backer rod is relatively inexpensive compared to other sealing materials such as caulk or foam tape. Its availability in different lengths also makes it easy to purchase only the amount needed for the project, reducing waste and saving money.
3. Versatility: Backer rod can be used in a variety of applications, including filling expansion joints, sealing around windows and doors, and even as a backing material for caulking or joint sealants. Its
My Buying Guide on ‘Backer Rod 1 1/4’
Are you in need of a reliable and high-quality backer rod for your upcoming construction project? Look no further than the Backer Rod 1 1/4! As someone who has used this product multiple times, I can confidently say that it is one of the best options in the market. In this buying guide, I will share my first-hand experience and provide you with all the necessary information to help you make an informed decision.
What is Backer Rod?
Before we dive into the specifics of Backer Rod 1 1/4, let’s first understand what backer rod is. Backer rod is a flexible foam material that is used to fill gaps and joints in construction projects. It plays a crucial role in creating a weather-tight seal by preventing air, moisture, and sound from passing through the joints. It also acts as a bond breaker between different building materials, preventing them from sticking together.
Why Choose Backer Rod 1 1/4?
There are numerous options available in the market when it comes to backer rods. However, after trying out different brands and sizes, I found that Backer Rod 1 1/4 stood out for several reasons.
Firstly, it is made of high-quality closed-cell polyethylene foam that provides excellent flexibility and durability. This makes it ideal for both indoor and outdoor use without worrying about it breaking or deteriorating over time.
Secondly, its size (1 1/4 inches) makes it suitable for filling medium-sized gaps and joints. It fits perfectly into most standard-sized joints and can easily be trimmed down to fit smaller ones.
Lastly, Backer Rod 1 1/4 is compatible with various sealants such as silicone, latex, and polyurethane. This versatility allows me to use my preferred sealant without any compatibility issues.
Where to Use Backer Rod 1 1/4?
Backer Rod 1 1/4 can be used in various applications such as window and door frames, expansion joints, concrete slabs, precast panels, log homes, and more. Its compatibility with different sealants makes it suitable for both indoor and outdoor use.
Tips for Using Backer Rod
To ensure proper installation of Backer Rod 1 1/4, here are some tips that have helped me:
– Before inserting the backer rod into the joint or gap, make sure to clean the surface thoroughly.
– Use a putty knife or similar tool to push the backer rod into place.
– Make sure not to compress the backer rod too much as it needs room to expand once sealant is applied.
– Trim off any excess backer rod using a utility knife.
– Apply your preferred sealant over the backer rod according to manufacturer’s instructions.
In Conclusion
As someone who has used multiple brands of backer rods over the years, I can confidently recommend Backer Rod 1 1/4 as one of the best options available. Its high-quality material, ideal size for medium-sized gaps/joints, compatibility with various sealants make it a must-have for any construction project. So go ahead and give it a try – you won’t be disappointed!
Author Profile

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Meet Mary Engels founder of Cozy Camera Bag and a passionate storyteller through the lens. Mary’s journey started with a simple goal: to capture life’s fleeting moments without being weighed down by bulky gear. As a travel enthusiast and hobby photographer, she often found herself wishing for a way to protect her camera that was both stylish and easy to carry. That’s how Cozy Camera Bag came to life.
Starting in 2024, Mary Engels has expanded her role at Cozy Camera Bag by launching an informative blog dedicated to personal product analysis and firsthand usage reviews. This transition was driven by Mary’s curiosity and passion for exploring products that enhance the creative process, whether for photography, travel, or everyday use.
Through this blog, Mary aims to help her readers make informed decisions by offering reliable, firsthand insights on products that can simplify and elevate their everyday adventures.
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