WeatherTech UnderLiner installed in the bed of a white truck image number null

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WeatherTech UnderLiner installed under a TechLiner in the bed of a white truck image number null

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WeatherTech UnderLiner installed under a bed slide in a grey truck image number null

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WeatherTech UnderLiner installed in the bed of a grey truck image number null

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WeatherTech UnderLiner on white background image number null

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GMC Sierra 1500 Limited UnderLiner

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GMC Sierra 1500 Limited UnderLiner

When you install a WeatherTech UnderLiner beneath your rigid drop-in bed liner, you add an unbeatable layer of protection that keeps your finish pristine. UnderLiner perfectly matches the contours of your truck bed, and measures in at 0.065” thick. Made of a flexible, yet sturdy material, UnderLiner provides a protective base that fits discreetly under any drop-in liner. Installation is a snap—simply place UnderLiner in your truck bed, fit your rigid drop-in bed over it, and you’re ready to load it up and hit the road. Skip the scuffs and scrapes—WeatherTech’s got your truck bed covered.

UnderLiner Highlights:

Heavy-duty, flexible base for your truck bed
Custom fit to match the shape, size and contouring of your truck’s make and model
Shields the painted surface of your truck bed from scratches and scrapes caused by rigid liners

Please note that the vehicle shown in imagery may sometimes be marked as “representative.” Not all vehicle photos may match the Year, Make and Model that you have selected from the vehicle selector menu.

How thick is the UnderLiner?

The UnderLiner measures 0.065" thick.

What’s the difference between TechLiner and UnderLiner?

TechLiner is a custom-fit pickup truck bed and tailgate liner that protects and shields the truck bed against scratches, dents, paint damage and rust. Underliner protects your pickup truck bed by creating a semi-soft protective barrier between a "drop-in" style bed liner and the painted surface of your truck’s bed.

Can I use UnderLiner by itself?

UnderLiner is designed to work only with a drop-in bed liner and is not for use on its own.

Where is this product made?

Proudly made in the USA.

Lifetime Limited Warranty

WeatherTech Canada warrants that our products will be free from any defects in manufacturing, materials and workmanship for the life of the original purchaser and only for the original vehicle they were installed in. Exclusions to this warranty include wear due to severe abrasive conditions, chemical contamination, such as spilled gasoline, bleach, vehicle accidents, misuse, abuse, incorrect installation, incorrect use, etc.

We are reasonable people and we believe in true customer satisfaction. Depending on the circumstance, we will either replace your product at no charge, charge you a prorated amount for a replacement, or issue a full or prorated refund. Our goal is to keep our customers happy for a lifetime and always reach a fair resolution to any issue.