Floor mats for the 2021 GMC Sierra 1500: what fits
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1 floor mat set lists the 2021 GMC Sierra 1500 on the maker's own page: WeatherTech FloorLiner (front and 2nd row).
Key takeaways
- WeatherTech FloorLiner: listed for 2019-2025, front and 2nd row.
- Read the maker's wording on each pick: hybrid or gas, sedan or hatchback, and bench or captain's chairs can each take a different mat.
Listed for the 2021 GMC Sierra 1500
- + Covers the front and 2nd row
- + Rigid tray shaped to this floor
- − Costs more than a flat rubber mat
The listing does not say which cab it fits. Check yours before you buy.
Check price on AmazonWhy this fits: WeatherTech's Amazon listing says “Compatible with select 2019-2025 Chevrolet Silverado 1500, 2026-2026 Chevrolet Silverado 1500, 2019-2025 GMC Sierra 1500, 2020-2025 GMC Sierra 2500HD”, checked 2026-10-28.
More 2021 GMC Sierra 1500 floor mats on Amazon →
Which type of floor mat set?
A rigid tray shaped to the floor, with raised edges that hold water, mud and snow.
A lower-priced mat cut for the car, often TPE rubber. Edge height and the rows included vary by listing.
Other years: 2025, 2024, 2023, 2022, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2006, 2005, 2004, 2003, 2002, 2001.
Same vehicle: window deflectors · mud flaps · all GMC Sierra 1500 specs.
Product fit: each pick quotes and links its maker's own page (Husky Liners, AVS) or the brand's own Amazon listing, where the maker names this car and these years. We re-check picks monthly. Body style, trim and options can change what fits, so match the maker's wording to your car.