You can tow and haul just about anything with your GMC Sierra 1500, thanks to its hefty towing capabilities and spacious bed dimensions. But how much space will you have inside the cabin? It depends on whether you opt for a Regular Cab, Double Cab, or Crew Cab. In this 2026 GMC Sierra 1500 interior overview, Hadwin-White Buick GMC, Inc. breaks down the GMC Sierra 1500 dimensions for each cab style. Plus, we’ll offer a glimpse at the premium amenities and high-tech interior features that will make your drives throughout the Myrtle Beach area easier and more enjoyable.
You’ll need to choose from 3 cab types when building your new Sierra 1500. To help guide your decision, consider how many passengers you’ll carry around Carolina Forest. The Regular Cab has a 3-passenger capacity, while the Double Cab comfortably seats 6 occupants. Finally, the Crew Cab can accommodate 5 or 6 passengers, depending on the configuration.
Explore the detailed GMC Sierra 1500 dimensions among the various cab and bed combinations to see what suits your needs:
Trims: Pro (2WD/AWD)
Trims: Pro (2WD/AWD)
Trims: Pro (2WD/AWD), SLE (2WD/AWD), Elevation (2WD/AWD)
Trims: Pro (2WD/AWD), SLE (2WD/AWD), Elevation (2WD/AWD), SLT (2WD/AWD), AT4 (4WD only), AT4X (4WD only), Denali (2WD/AWD), Denali Ultimate (4WD only)
Trims: Pro (2WD/AWD), SLE (2WD/AWD), Elevation (2WD/AWD), SLT (2WD/AWD), AT4 (4WD only), Denali (2WD/AWD)
Your Sierra 1500 becomes a mobile office with helpful technology, including a Wi-Fi® hotspot and seamless phone integration. When you’re on the road in Red Hill, you’ll also enjoy premium appointments to keep you comfortable. Here’s a closer look at the highlights you’ll encounter inside the 2026 GMC Sierra 1500:
While these features come standard in the base model, opting for upper-level Sierra 1500 trims unlocks additional upgrades, such as heated seats, wireless Apple CarPlay® and Android Auto™, a 13.4-inch diagonal GMC Premium Infotainment System with Google built-in, and more.
You can compare cab options and explore more interior features at our GMC dealership in Conway. Contact us to schedule an appointment or visit us during our flexible hours. When you’re ready to upgrade, our new vehicle specials can help you lock in a competitive price.
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