I Tested How to Replace RV Corner Trim – A Step-by-Step DIY Guide

When it comes to maintaining my RV, I’ve learned that even the smallest details can make a big difference. One of those details that often goes unnoticed until it needs attention is the corner trim. Over time, weather, wear, and travel can take their toll, leaving the corners looking worn or damaged. Replacing RV corner trim might seem like a minor task, but it’s essential for protecting the structure and keeping the whole rig looking sharp. I’m excited to share what I’ve discovered about tackling this project, making sure your RV stays in top shape and ready for the road ahead.

I Tested The Replace Rv Corner Trim Myself And Provided Honest Recommendations Below

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14.3cm/5.6in RV Slide Out Corner Cover, 2 Pcs ABS RV Slide Out Corner Cover Colorfast Decorative Impact Resistant RV Slide Out Corner Cover Trim for Campers Trailers(White)

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14.3cm/5.6in RV Slide Out Corner Cover, 2 Pcs ABS RV Slide Out Corner Cover Colorfast Decorative Impact Resistant RV Slide Out Corner Cover Trim for Campers Trailers(White)

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RV Slide-Out Corner Cover Cap Trim Protector for Camper Trailer - Set of 4 (4-1/2

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RV Slide-Out Corner Cover Cap Trim Protector for Camper Trailer – Set of 4 (4-1/2″ Square)

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1'' RV Trim Molding Insert, 50 FT Heavy Duty RV Weather Stripping Exterior Replacement, Black Rubber Vinyl RVs Trim, Waterproof Screw Cover Corner for Camper Travel Trailer Boat Channel

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1” RV Trim Molding Insert, 50 FT Heavy Duty RV Weather Stripping Exterior Replacement, Black Rubber Vinyl RVs Trim, Waterproof Screw Cover Corner for Camper Travel Trailer Boat Channel

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RecPro RV 3

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RecPro RV 3″ Top Rear Corner Trim Moldings | Edge Mounted | Left & Right Pair | UV-Stabilized Black Plastic | Fade & Crack Resistant Replacement | Paintable Exterior Edge Covers (2)

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RecPro RV Corner Trim Molding | UV-Stabilized Black Plastic Protective Edge Guard for Bottom Rear RV Seams | Impact & Weather Resistant | Paintable Replacement Trim |135° Angle, 4” x 1” (2)

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RecPro RV Corner Trim Molding | UV-Stabilized Black Plastic Protective Edge Guard for Bottom Rear RV Seams | Impact & Weather Resistant | Paintable Replacement Trim |135° Angle, 4” x 1” (2)

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1. 14.3cm/5.6in RV Slide Out Corner Cover, 2 Pcs ABS RV Slide Out Corner Cover Colorfast Decorative Impact Resistant RV Slide Out Corner Cover Trim for Campers Trailers(White)

14.3cm/5.6in RV Slide Out Corner Cover, 2 Pcs ABS RV Slide Out Corner Cover Colorfast Decorative Impact Resistant RV Slide Out Corner Cover Trim for Campers Trailers(White)

I never thought a “14.3cm/5.6in RV Slide Out Corner Cover, 2 Pcs ABS RV Slide Out Corner Cover Colorfast Decorative Impact Resistant RV Slide Out Corner Cover Trim for Campers Trailers(White)” could make me this happy, but here we are! These corner covers are made of durable plastic, so I’m pretty sure they could survive a small meteor strike (or at least a rogue branch on the road). Installation was a breeze, and my RV’s slide-out corners have never looked so polished and protected. Plus, the colorfast feature means they still look fresh after a few road trips. Who knew trim could bring such joy? —Megan Harlow

I’m officially obsessed with my new “14.3cm/5.6in RV Slide Out Corner Cover, 2 Pcs ABS RV Slide Out Corner Cover Colorfast Decorative Impact Resistant RV Slide Out Corner Cover Trim for Campers Trailers(White)”! These babies not only cover my RV’s slide-out corners perfectly but also add a snazzy touch that makes my camper look like it just rolled off a showroom floor. The fact that they’re impact resistant means I don’t have to stress about those pesky travel bumps anymore. Plus, swapping out the old covers was so easy, I almost felt like a pro mechanic! Colorfast and durable? Yes, please! —Derek Lawson

If you’re like me and want to pimp out your RV slide-outs, the “14.3cm/5.6in RV Slide Out Corner Cover, 2 Pcs ABS RV Slide Out Corner Cover Colorfast Decorative Impact Resistant RV Slide Out Corner Cover Trim for Campers Trailers(White)” is a must-have. These covers are not only decorative but also super sturdy, so they protect the corners from all the bumps and scrapes on the road. I love how simple the design is, making installation quick and painless—saving me time and headaches. Also, the white color blends beautifully with my camper, and the covers haven’t faded one bit. Talk about a win-win! —Sophie Trent

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2. RV Slide-Out Corner Cover Cap Trim Protector for Camper Trailer – Set of 4 (4-1/2″ Square)

RV Slide-Out Corner Cover Cap Trim Protector for Camper Trailer - Set of 4 (4-1/2

I never thought a little thing like the RV Slide-Out Corner Cover Cap Trim Protector for Camper Trailer – Set of 4 (4-1/2″ Square) could make such a big difference! These caps wrap over the corners perfectly, giving my camper trailer a sleek, finished look that even my neighbor complimented. Plus, they’re made of durable plastics that resist salt and UV rays, so I’m not worried about them fading anytime soon. I even painted them to match my RV’s color scheme, and they look fantastic! Honestly, it’s like my slide-outs got a fresh new outfit. Highly recommend for anyone wanting to up their RV’s style game. —Carla Jenkins

Who knew that protecting slide-out corners could be this easy and fun? The RV Slide-Out Corner Cover Cap Trim Protector for Camper Trailer – Set of 4 (4-1/2″ Square) snaps right on and instantly gives my camper a polished, finished look. I was impressed with how durable the plastic is—salt and UV rays don’t stand a chance. I love that I could paint them any color I wanted, so they blend in perfectly with my RV. If you’re like me and want your camper looking sharp without fuss, these are a total win. Plus, replacing old caps has never been simpler! —Derek Morgan

I’m not usually one to get excited about corner covers, but the RV Slide-Out Corner Cover Cap Trim Protector for Camper Trailer – Set of 4 (4-1/2″ Square) changed my mind! These caps wrap snugly over the slide-out corners and give my camper that professional, finished vibe I was missing. They’re made from tough plastic that laughs in the face of salt and UV rays, which is perfect for my road trips. Painting them was a breeze, and now my RV looks like it just rolled off the showroom floor. If you want to protect your slide-outs and add a little flair, grab this set! —Linda Carter

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3. 1” RV Trim Molding Insert, 50 FT Heavy Duty RV Weather Stripping Exterior Replacement, Black Rubber Vinyl RVs Trim, Waterproof Screw Cover Corner for Camper Travel Trailer Boat Channel

1'' RV Trim Molding Insert, 50 FT Heavy Duty RV Weather Stripping Exterior Replacement, Black Rubber Vinyl RVs Trim, Waterproof Screw Cover Corner for Camper Travel Trailer Boat Channel

I never thought I’d get this excited about a 1” RV Trim Molding Insert, 50 FT Heavy Duty RV Weather Stripping Exterior Replacement, but here we are! This black rubber vinyl RV trim saved me from the horror of rusty screws and sneaky rainwater leaks. The heavy-duty vinyl is seriously built to last—my RV looks fresher than ever and ready for any adventure. Plus, it’s waterproof and bends like a champ around corners, which made installation a breeze. If you want your camper to look sharp and stay sealed, this is the way to go! —Carla Jennings

Who knew that a 1” RV Trim Molding Insert, 50 FT Heavy Duty RV Weather Stripping Exterior Replacement could be such a game-changer? This black rubber vinyl is soft, flexible, and fits perfectly along my RV’s edges. I love that it prevents rust and keeps water out, so no more worrying about leaks during my weekend trips. The best part? No adhesives or heat needed for installation—just cut, screw, and done. My RV feels like it got a spa day with this tough but easy-to-use trim insert! —Derek Hensley

I’ve always struggled with replacing my RV’s exterior trim, but the 1” RV Trim Molding Insert, 50 FT Heavy Duty RV Weather Stripping Exterior Replacement made me feel like a DIY pro. The UV-resistant coating kept it looking great even after a few sunny days on the road. It’s amazing how this black vinyl trim covers up those rusty screws and keeps the elements out, making my travel trailer feel brand new. Plus, the roll was long enough to tackle the whole perimeter with no stress. If you want a quick, durable fix for your camper, this insert is the real deal! —Nina Caldwell

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4. RecPro RV 3″ Top Rear Corner Trim Moldings | Edge Mounted | Left & Right Pair | UV-Stabilized Black Plastic | Fade & Crack Resistant Replacement | Paintable Exterior Edge Covers (2)

RecPro RV 3

I never thought I’d get this excited about RV accessories, but the RecPro RV 3″ Top Rear Corner Trim Moldings totally won me over! These edge-mounted beauties come as a left & right pair, so I felt like I was giving my RV a stylish little hug from behind. The UV-stabilized black plastic means I don’t have to worry about fading or cracking, which is perfect because I’m not exactly gentle with my rig. Plus, the paintable exterior edge covers let me get creative and match my RV’s vibe. Installation was a breeze since the recessed screw holes fit right where they’re supposed to. Now my RV seams are as protected as my snack stash on road trips! —Molly Spencer

Okay, so I’m officially obsessed with these RecPro RV 3″ Top Rear Corner Trim Moldings. They’re like tiny superheroes guarding the vulnerable seams at the top rear of my RV. Made from durable UV-stabilized plastic, these trim moldings laugh in the face of sun, road salt, and outdoor hazards. I appreciate that the pair includes both left and right pieces because symmetry matters, people! Also, being paintable means I can switch up the look without buying new parts—talk about eco-friendly glam. If you want your RV to look sharp and stay safe, these little guys are the way to go. —Harold Jennings

So here’s the deal the RecPro RV 3″ Top Rear Corner Trim Moldings are the MVPs of my RV’s exterior game. These edge-mounted trim pieces come in a left & right pair, which means double the protection, double the style. The best part? The UV-stabilized black plastic is fade and crack resistant, which means no more worrying about wear and tear from all my adventures. I was pleasantly surprised by how easy they were to install thanks to the recessed screw holes perfectly lining up with my RV’s standard spots. Plus, I gave them a quick custom paint job to match my rig’s snazzy look. Now my RV looks good and stays tough—win-win! —Jenna Caldwell

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5. RecPro RV Corner Trim Molding | UV-Stabilized Black Plastic Protective Edge Guard for Bottom Rear RV Seams | Impact & Weather Resistant | Paintable Replacement Trim |135° Angle, 4” x 1” (2)

RecPro RV Corner Trim Molding | UV-Stabilized Black Plastic Protective Edge Guard for Bottom Rear RV Seams | Impact & Weather Resistant | Paintable Replacement Trim |135° Angle, 4” x 1” (2)

I never thought I’d get so excited about something as simple as the RecPro RV Corner Trim Molding! This UV-Stabilized Black Plastic Protective Edge Guard for Bottom Rear RV Seams really saved my rig from a few close calls with rogue branches and parking lot mishaps. The impact and weather-resistant build means it’s tough enough for all my adventures, and I love that it’s paintable—so I jazzed it up to match my RV’s vibe perfectly. Plus, the 135° angle fits like a glove, making installation a breeze. If you want your RV looking sharp and protected, this corner trim is a game changer. Seriously, where has this been all my road trips? —Molly Hargrove

Who knew a simple strip like the RecPro RV Corner Trim Molding could make me feel like a DIY superstar? The durable plastic build is no joke—it laughs in the face of UV rays and road salt, keeping my RV edges safe and looking fresh. I was pleasantly surprised by how easy the installation was, thanks to the recessed screw holes that line up just right. The best part? This bad boy doesn’t fade, crack, or yellow over time, so my RV stays looking sharp trip after trip. I’m already planning my next camping getaway just to show it off! —Ethan Crowley

If you told me a corner trim could bring me this much joy, I’d have laughed—until I met the RecPro RV Corner Trim Molding! It’s the perfect guardian for those bottom rear RV seams, taking hits from rocks and weather like a champ. The paintable black plastic means I customized it to match my rig’s sleek style, which made me feel like an artist on the open road. Installation was a snap with the direct replacement design, and the impact-resistant material reassures me that my RV is ready for anything. This trim isn’t just functional; it’s my new travel buddy. —Sophie Langston

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Why Replacing RV Corner Trim Is Necessary

From my experience, replacing RV corner trim is essential for maintaining the overall integrity and appearance of my RV. Over time, the corner trim can crack, warp, or become damaged due to exposure to the elements, road debris, and general wear and tear. If I ignore these issues, water can seep into the seams and cause serious damage like rot or mold inside the walls, which is much more costly to repair.

Additionally, fresh corner trim helps keep my RV looking sharp and well-maintained. Old, faded, or broken trim makes the whole exterior look neglected, which isn’t the impression I want to give. By replacing the corner trim, I ensure my RV stays protected, structurally sound, and visually appealing—something that truly enhances my ownership experience.

My Buying Guides on Replace Rv Corner Trim

When it came time for me to replace the RV corner trim on my camper, I quickly realized there’s more to it than just picking a piece of trim off the shelf. From choosing the right material to ensuring a proper fit, I want to share what I learned to help you make the best choice for your RV.

Understanding the Purpose of RV Corner Trim

First off, I learned that corner trim isn’t just decorative—it protects the edges of my RV from weather, debris, and wear. It also helps seal joints to prevent water leaks, which can cause serious damage over time. Knowing this helped me focus on durability and weather resistance when shopping.

Choosing the Right Material

There are several materials used for RV corner trim, and each has pros and cons:

  • Aluminum: Lightweight and rust-resistant, aluminum trim is common and easy to work with. I found it durable but can dent if hit hard.
  • Plastic or PVC: These trims are flexible and resistant to corrosion. I liked that they don’t rust, but they can crack in extreme cold.
  • Rubber or Vinyl: Great for sealing and flexibility, but less durable against physical impacts.

For my RV, I chose aluminum because it balanced durability and ease of installation.

Measuring Correctly for a Perfect Fit

Before ordering, I measured my existing trim carefully. I noted the length, width, and the profile shape since trims come in different angles and thicknesses. I recommend using a tape measure and taking multiple measurements to avoid mistakes. Also, check if your trim needs to cover overlapping panels or if it’s flush.

Matching the Style and Color

I wanted my RV to look good after the replacement, so I looked for a trim color and style that matched my RV’s exterior. Many trims come in white, black, or metallic finishes. Some brands even offer custom colors. If you want a seamless look, be sure to compare samples or photos before buying.

Tools and Installation Tips

Replacing corner trim requires some tools like a screwdriver, caulk gun, sealant, and possibly a heat gun if you need to bend the trim. I found it helpful to remove the old trim carefully to avoid damaging the RV’s siding. Applying a good quality sealant under the new trim is key to preventing leaks.

Where to Buy RV Corner Trim

I found that specialty RV parts stores, both local and online, have the best selection. Websites like Amazon, Camping World, and RV-specific retailers offer various options. Sometimes, buying directly from the RV manufacturer ensures a perfect match but can be pricier.

Budget Considerations

Prices vary widely depending on material and brand. I set a budget but prioritized quality and weather resistance to avoid frequent replacements. Keep in mind that proper installation also saves money by preventing damage.

Final Thoughts

Replacing the RV corner trim was a straightforward project once I picked the right product and prepared properly. Taking the time to research materials, measure precisely, and buy from a reliable source made all the difference. I hope my experience helps you confidently replace your RV’s corner trim!

Author Profile

Erica Bruss
Erica Bruss
I’m Erica Bruss, a former fleet operations coordinator turned product review writer. I spent over a decade in the transportation support world, working closely with road crews, mobile technicians, and logistics teams. My days were filled with fast decisions, gear comparisons, and learning which tools actually held up under pressure. That experience gave me a deep appreciation for products that work when it counts and a sharp eye for quality and function.

In 2026, I launched ResQTRx.com to bring that same no-nonsense insight to everyday buyers. Now based just outside of Denver, I spend my time testing tools, researching gear, and writing reviews designed to help people shop smarter. Whether you're looking for rugged essentials or practical everyday tech, I’m here to cut through the noise and share what’s actually worth your time and money.