2014-2018 GMC Sierra 1500 Bed Extenders

Every bed extender in this collection is fitment-verified for the 2014-2018 GMC Sierra 1500, including Regular, Double, and Crew Cab models. Both the 5'8" short bed and 6'6" standard bed are covered, with flip-out aluminum cages from AMP Research, Lund, and WeatherTech.

Will a bed extender work with my tonneau cover? Yes in most cases. AMP Research BedXtender HD models pivot on low-profile stake-pocket brackets that clear most roll-up and tri-fold covers -- thick aluminum-rail covers may need relocation brackets, noted on each product page.

If it is listed here, it fits your Sierra 1500 -- guaranteed.

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