2021 GMC Sierra 1500 Bed Sizes

March 13th, 2021 by
2021 GMC Sierra Truck Bed

If you need a pickup to tackle tough jobs in Oahu, then you’re sure to be impressed by how much you can haul with the expanded GMC Sierra bed sizes. Select your cab size and bed size for a Sierra configuration that perfectly fits your needs, and add optional features like an available six-function MultiPro™ Tailgate. Keep reading to explore the GMC Sierra bed dimensions, bed features, and more with Honolulu Buick GMC!

What are the GMC Sierra Bed Sizes?

Whether you’re working around Waipahu or near Ewa Beach, every job is different — so you can customize with several GMC Sierra bed dimensions and cab sizes. Depending on how much space you need for jobsite supplies and materials versus passenger seating, you can opt for the crew cab, double cab, or regular cab. While the regular cab provides space for three passengers, the crew and double cabs increase passenger capacity to five and six, respectively. If you’re looking for the 2022 GMC Sierra 1500 bed sizes, we have that information here! See the available GMC Sierra bed sizes and dimensions below:

GMC Sierra Bed Sizes

GMC Sierra 1500 Crew Cab

  • Short Box – 69.9 inches
  • Standard Box – 79.4 inches
  • Configurations – SLE, Elevation, SLT, AT4, and Denali

GMC Sierra 1500 Double Cab

  • Standard Box – 79.4 inches
  • Configurations – SLE, Elevation, SLT, and AT4

GMC Sierra 1500 Regular Cab

  • Long Box – 98.2 inches
  • Configurations – SLE, Elevation, and SLT

GMC Sierra Bed Dimensions

GMC Sierra 1500 Crew Cab

  • Seating Capacity – 6 passengers
  • Cargo Volume – 62.9 cubic feet
  • Front Headroom – 43.0 inches
  • Front Legroom – 44.5 inches

GMC Sierra 1500 Double Cab

  • Seating Capacity – 6 passengers
  • Cargo Volume – 79.44 cubic feet
  • Front Headroom – 43.0 inches
  • Front Legroom – 44.5 inches

GMC Sierra 1500 Regular Cab

  • Seating Capacity – 3 passengers
  • Cargo Volume – 98.2 cubic feet
  • Front Headroom – 43.1 inches
  • Front Legroom – 44.5 inches

GMC MultiPro™ Tailgate

Expand the capabilities of your Sierra even further with the available six-function MultiPro™ Tailgate. This unique feature allows you to load and unload large items more efficiently with the following functions:

  • Open the primary gate using your GMC key fob’s power release button.
  • Engage Primary Gate Load Stop to prevent cargo from sliding out of the truck bed while the primary gate is open.
  • Fold down the inner gate for easier loading and unloading of the truck bed.
  • Fold the inner gate into a step for better footing.
  • Engage the inner gate also load stop to prevent second-tier tools and equipment from sliding.
  • Convert the inner gate into a work surface or second-tier loading feature.

Discover GMC Sierra Capability with Honolulu Buick GMC

If you’re ready to bring home your new Sierra, stop by our dealership for a test drive today! While you’re here, see how much you can save with our rotating selection of new vehicle specials and service offers.

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  • 2021 GMC Sierra 1500 Bed Sizes

    If you need a pickup to tackle tough jobs in Oahu, then you’re sure to be impressed by how much you can haul with the expanded GMC Sierra bed sizes. Select your cab size and bed size for a Sierra configuration that perfectly fits your needs, and add optional features like an available six-function MultiPro™…