GMC Sierra Bed Size

The 2022 GMC Sierra has three available cargo bed sizes, but to haul the biggest payload you’ll need to choose your engine, box size, and drivetrain wisely.
Written by Matt Nightingale
Reviewed by Jessica Barrett
The GMC Sierra comes with three available box sizes—a long box with 89.1 cubic feet of carrying space, a standard box with 71.7 cubic feet of space, and a short box with 62.9 cubic feet of cargo capacity.
Available in eight trim levels, the GMC Sierra has found new levels of luxury with high-end cabin materials, tons of driver-assist tech, and a large 13.4-inch infotainment touchscreen. The 2022 Sierra also comes with a carbon-fiber-reinforced box, which is said to be lighter and stronger than the competition.
But how much can that rear truck bed hold? Here to answer that question is
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and cargo capacity connoisseur,
. We’ll look at the 2022 Sierra’s hauling capacity, what types of options can help you get the most out of your truck bed, and we’ll even show you how to save on your
GMC Sierra insurance cost
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2022 GMC Sierra truck bed dimensions

The 2022 GMC Sierra comes in eight trim levels with three available cab sizes and three available bed sizes. Not all cab sizes are available with all box sizes, and there are only five possible bed and cab size configurations.
Here are the dimensions of all available cargo box options for the 2022 GMC Sierra:
  • Bed length: 98.2 inches (long box), 79.4 inches (standard box), 69.9 inches (short box)
  • Bed width: 50.6 inches (all boxes) 
  • Bed depth: 22.4 inches (all boxes)
  • Bed volume: 89.1 cubic feet (long box), 71.7 cubic feet (standard box), 62.9 cubic feet (short box)
The Sierra has four engine options for you to choose from—a 2.7-liter four-cylinder engine, a 5.3, a 6.2 V-8, and a six-cylinder diesel engine. Your truck’s hauling capacity is contingent on what engine your model is outfitted with, which drivetrain setup you opt for, as well as which cab and bed sizes you choose. 
The best hauling capacity is found on Sierra models sporting the 5.3 EcoTec3 V8 engine with a rear-wheel drive, a regular cab, and a 98-inch cargo bed. That particular model is capable of lugging 2,180 pounds of cargo.
The Sierra comes with a number of tie-down points so that you can secure your load, and all Sierra models above the base trim come with GMC’s MultiPro Tailgate which allows you to extend your bed length.

2022 GMC Sierra cargo bed specs

The 2022 GMC Sierra’s cargo bed can be scaled up or down with 95 bed accessories to choose from including cargo netting, side rails, tri-fold bed covers, and more. There are also options for additional storage like utility boxes, tool boxes, and bed organizers.

How to save on GMC truck insurance

If you want to customize your GMC Sierra, you don’t want to have to choose between adding an option and paying for your car insurance. Here’s a tip: save money on your GMC Sierra insurance costs with
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