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Can You Install A Tonneau Cover With A Plastic Bed Liner?

Can You Install A Tonneau Cover With A Plastic Bed Liner?

By PattyKay Lilley

If you’ve been considering installing a tonneau cover on your truck, then you may also be wondering if it’s possible to install one with a plastic bed liner already in place. It can be difficult to find the right information and make sure you get the best outcome for your vehicle so if this is something that worries you, don’t worry!

In this blog post we will guide you through what options are available when it comes to installing a tonneau cover onto a truck with a plastic bedliner. We will go into detail about what type of covers work best with these liners and even discuss issues related to warranties, installation instructions, and more – all so that by the end of this article you’ll have complete confidence in tackling this task yourself or leaving it up to professionals. Read on for further details!

Can You Install A Tonneau Cover With A Plastic Bed Liner?

Yes, indeed, it is entirely possible to install a tonneau cover with a plastic bed liner on your truck. However, the process and the ease of installation can vary depending on the type of tonneau cover and plastic bed liner you have.

Different tonneau covers come with different installation requirements. Some are designed to clamp directly onto the truck’s bed rail, while others may need to be attached inside the bed. If your plastic bed liner covers the bed rails, you might need to make some modifications or opt for a tonneau cover that fits inside the bed.

One important factor to note is your truck bed liner’s design. Over-the-rail liners are more complex to work with as they cover the truck’s bed rails, which is where most tonneau covers need to be attached. On the other hand, under-the-rail liners leave the bed rails exposed, making them far more compatible with various types of tonneau covers.

Before attempting to install a tonneau cover, ensure you understand its installation instructions. Some covers may require drilling or additional tools, while others can be installed without making any modifications to your truck.

Lastly, consider the warranty of both your plastic bed liner and the tonneau cover. Be sure that any modifications you make to accommodate the installation won’t void the warranty on either product. If unsure, it may be best to consult with a professional.

See more: How To Preserve The Life Of Your Tonneau Cover

Types of Tonneau Cover

Types of Tonneau Cover

There are several types of tonneau covers that you can consider for your truck. Knowing each type’s characteristics can help determine the best fit for your truck, especially if it has a plastic bed liner.

Roll-up Tonneau Covers

Roll-up covers are usually made of vinyl and are one of the most affordable options. They are easy to install and use, often requiring no drilling. If your truck has an under-the-rail plastic bed liner, a roll-up tonneau cover could be an excellent choice.

Folding Tonneau Covers

Folding covers usually come in tri-fold design, allowing for quick access to your truck bed. They can be a good option if your bed liner leaves the bed rails exposed. However, they may require some adjustments if you have an over-the-rail bed liner.

Retractable Tonneau Covers

Retractable tonneau covers offer high security and sleek appearance. They can be more complex to install and may need some modifications if you have an over-the-rail bed liner.

Hinged Tonneau Covers

Hinged covers are typically hard covers that provide excellent security. They can be more challenging to install with a plastic bed liner, especially if it’s an over-the-rail liner.

Understanding the types of tonneau covers and their installation requirements is crucial in making an informed decision. Always consider the type of plastic bed liner you have and refer to the manufacturer’s instructions for installation compatibility.


Let’s address some of the most common questions and concerns that arise when considering the installation of a tonneau cover on a truck equipped with a plastic bed liner. The process can seem daunting at first, but with the right information and understanding, it becomes far less intimidating.

Can my bed liner be modified to fit a tonneau cover?

Yes, you can modify your bed liner to fit a tonneau cover. However, this should be done cautiously and preferably by a professional to avoid any damage. If you have an over-the-rail bed liner, you may need to cut notches into it to allow the tonneau cover’s clamps to attach to the truck bed’s rail. But do remember that any modification may void the warranty of your bed liner.

Will installing a tonneau cover on a plastic bed liner void my warranty?

The answer to this question can vary depending on the manufacturer of both your bed liner and the tonneau cover. In most cases, modifications made to the bed liner or the truck bed to accommodate a tonneau cover can potentially void a warranty.

It’s crucial to carefully read your product warranties or contact the manufacturer directly to understand the terms and conditions relating to modifications.

Are there any tonneau covers that don’t require modifications to the bed liner for installation?

There are indeed tonneau covers available that do not require any modifications to your truck bed liner for installation. For instance, some roll-up tonneau covers can be installed using tension-based systems that don’t require drilling or cutting into the bed liner.

Similarly, some clamp-on designs can work with under-the-rail bed liners without any need for modifications. Always check with the tonneau cover manufacturer or consult a professional to ensure compatibility with your specific bed liner.

Final Thoughts

Investing in a tonneau cover for your truck with a plastic bed liner can be a great decision with the right knowledge and preparation. These covers not only enhance the aesthetic appeal of your vehicle but also provide an added layer of security for the cargo in your truck bed.

The type of your bed liner, whether it’s over-the-rail or under-the-rail, can influence the installation process of the tonneau cover. Some covers like roll-up and folding ones are easy to install and may not require any modifications, while others, like retractable or hinged covers, may need some adjustments.

Remember, any modifications to your bed liner or truck bed should be done cautiously and preferably by a professional to avoid any potential damage. Always consider the warranty terms of both your bed liner and tonneau cover before making any changes.

Choosing a tonneau cover that aligns with your needs, and is compatible with your bed liner, can be a worthwhile investment. It contributes not only to the functionality of your truck but also enhances its overall look. With a host of options available, you are sure to find a tonneau cover that perfectly matches your needs and your truck’s aesthetics.

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