Custom Fit Floor Liners for GMC Sierra 1500

The 2019 model year was a transition year, meaning there are two different body styles on the road. You must identify which one you have to ensure a correct fit:

• New Body Style: This is the redesigned look. Fitment usually depends on details like underseat storage and seating type.
• Legacy / Limited (Old Body Style): These trucks share the chassis and interior of the 2014–2018 models. In our catalog, these are specifically noted as "Legacy" or "LD".

For 2019–2025 Crew Cab and Double Cab models, the shape of the second-row floor liner changes significantly based on this factory option.

• With Storage: The liner has a specific cutout or shape to butt up perfectly against the factory storage box.
• Without Storage: The liner extends further back under the rear seat to provide maximum floor coverage.

Yes, but only if you select the specific SKU designed for vinyl flooring. Liners designed for carpet utilize retention hooks and a different backing that will not work on vinyl. We offer distinct liners for carpet vs. vinyl, and they are not interchangeable. Make sure to select the "Vinyl Flooring" option when adding to cart.

If your Sierra has a front-row bench seat, "Over the Hump" means the floor liner is a single continuous piece that covers the driver’s side, the passenger’s side, and the center transmission tunnel (the hump) in the middle. This provides superior protection against spills in the center of the cab. We also offer 2-piece options without this coverage for certain setups.

Most Smartliner custom-fit liners for the GMC Sierra 1500 are designed for electronic shift vehicles and will not fit trucks with a manual 4x4 floor shifter. Please check the specific product fitment notes, as many explicitly state "No" to the manual shifter configuration.

We offer precision-fit liners for all major GMC Sierra cab styles:

• Crew Cab: 4 full-size doors opening in the same direction.
• Double Cab: 2 standard front doors and 2 smaller rear doors (sometimes called Extended Cab on older models).
• Regular Cab: 2 doors with a single row of seating.

Our liners are manufactured using a proprietary low-density polyethylene blend. This advanced material is the key to our "rugged but flexible" feel—it’s durable enough to withstand heavy boots and tools but flexible enough to grip the floor and install easily.

Absolutely. Smartliner products feature a "Smart Coverage" raised lip and a molded outer edge. This design creates a tray that locks in dirt, mud, and liquid spills, preventing them from running off the mat and ruining your truck’s carpet.

Yes. Unlike heavy rubber mats that can gas out and smell like tires, our liners offer 100% odorless protection, even in high heat.

Yes, we offer "SmartCoverage" truck bed mats for specific configurations, such as the Crew Cab with the short bed (5'8" or 5'7").

No. Our truck bed mats are designed for a precision fit on bare metal beds or spray-in bed liners. They are not compatible with plastic drop-in bed liners, as the plastic liner changes the dimensions of the bed floor.

We build them to last. All Smartliner custom-fit floor liners are backed by a Lifetime Warranty against manufacturing defects, curling, or cracking.