GMC Sierra Crew Cab vs Double Cab

When piecing together the perfect GMC Sierra truck for yourself, there are various models, configurations, engines, trim levels, and packages you can choose from. Each of these allows you to customize the 2021 Sierra to get the most out of your new truck as you drive and use its strong capabilities around Fishers, Indianapolis, and Noblesville, IN.

With a few different cabin configurations, our team at Andy Mohr Buick GMC wants to help you decide between the GMC Sierra Crew Cab vs. Double Cab by detailing what each of them means in terms of size, capabilities, and more.

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Interior Space of the 2021 Sierra Double Cab vs Crew Cab

If you’re trying to choose the best cabin for your specific needs, the first question you may be asking yourself is how much space it has to offer. Every iteration of the Double Cab offers seating for six to make more space for your workers. The Crew Cab is also available with seating for six, but it can be equipped to carry five passengers if you prefer fewer seats.

Despite this difference in seating, you’ll notice the dimensions of these cabins are identical which each one offering the following measurements:

• Front Headroom: 43.03 inches
• Front Legroom: 44.53 inches
• Front Shoulder Room: 66.02 inches
• Front Hip Room: 61.18 inches

As you can see, no matter which cab appeals to you, you’ll have ample space for you to stretch out in the front row.

Where the differences come into play, though, is the back row. With the Crew Cab, you’ll have over 40 inches of headroom along with over 43 inches of legroom. However, the Double Cab doesn’t quite reach 40 inches of rear headroom and only provides just over 35 inches of rear legroom. If you’re looking for more space for your construction site buddies, then you may want to opt for the more spacious Crew Cab.

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What Box Comes with Each Cabin?

After you’ve figured out the internal space you’re looking for in your next truck, it’s time to decide on the external cargo room. Pickups are known for being able to haul some serious cargo and the 2021 GMC Sierra is no different with three bed options for you to choose from:

Model	Short Box Length	Standard Box Length	Long Box Length
Sierra 1500	69.92 inches	79.44 inches	98.20 inches
Sierra HD	N/A	82.20 inches	98.27 inches

As you can see, there’s something for every driver to enjoy. If you’re looking to transport a few smaller tools and items, then the Short Box is a great option. But if you need extra length for drywall and sheet metal, then the Long Box is the best match for you.

On the Sierra 1500, you can combine the Crew Cab with either the Short Box or the Standard Box when you opt for 4-wheel drive (4WD). If instead you’re interested in the Double Cab, your only option will be the Standard Box. The Long Box is only available on this model if you choose the Regular Cab.

Since a Short Box option isn’t available with the Sierra HD, your options vary slightly. The Crew Cab can be paired with either the Standard Box or Long Box if you’re looking for extra cargo space. The Double Cab can also be matched to either of the bed options to ensure you’re getting the room your treks call for. You can also combine the Regular Cab with the Long Box.

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Crew Cab vs Double Cab: Towing Capabilities

In addition to carrying cargo in your truck bed, you’ll want to tow with your pickup. The 2021 GMC Sierra is known for some impressive carrying abilities, and the maximum capabilities vary depending on the cabin option you select.

Sierra 1500

Let’s start with the Sierra 1500. This truck is available with five engine options, with each one delivering its own unique blend of refined power. When you opt for the available 6.2-liter EcoTec®3 V8 motor paired to the Crew Cab, 4WD, and Standard Box, you’ll be able to haul a maximum of 11,800 pounds.

Interested in the Double Cab? Then you’ll want to pair it to the 5.3-liter EcoTec®3 V8 powertrain, 2-wheel drive, and the Standard Box for a maximum towing capacity of 11,300 pounds.

Sierra HD

Within the umbrella of the 2021 Sierra HD, there are two configurations for you to choose from: 2500 and 3500. Both options offer each of the cabin options, however, your towing capacities will differ depending on the configuration you’re interested in.

The Crew Cab on the 2500 can be equipped to carry a maximum of 18,500 pounds, while the Double Cab is able to handle a maximum of 18,200 pounds.

Looking to haul even more? The 3500 ups the Crew Cabs capability to 31,400 pounds and the Double Cab to 31,500 pounds.

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Choosing the Right GMC Sierra

Selecting the cabin you want is just part of choosing which 2021 GMC Sierra truck is right for you. You’ll also want to figure out which model you want. This will come down to what exactly you’ll need your truck for.

2021 Sierra 1500

As noted before, this truck has a handful of engines to choose from, so you can choose the right amount of power for your ventures:

• 6.2-liter EcoTec®3 V8 engine: 420 horsepower and 460 lb-ft of torque
• 3.0-liter Duramax® Turbo-Diesel engine: 277 horsepower and 460 lb-ft of torque
• 5.3-liter EcoTec®3 V8 engine: 355 horsepower and 383 lb-ft of torque
• 2.7-liter Turbo engine: 310 horsepower and 348 lb-ft of torque
• 4.3-liter Gas V6 engine: 285 horsepower and 305 lb-ft of torque

Plus, with up to 15 available camera views, this pickup is ready to lend a hand on your next big project.

2021 Sierra HD 2500

As mentioned before, the Sierra HD has two configurations, the first of which is the 2500. This model offers two engines: a 6.6-liter V8 Turbo Diesel and a 6.6-liter V8 gas powertrain. When properly equipped, you can carry a maximum of 3,979 pounds and tow up to 18,500 pounds.

2021 Sierra HD 3500

If you’re looking for a little more oomph, turn to the Sierra HD 3500. While it has the same two engines available to you, it ups payload capacity to 7,442 pounds and towing to 36,000 pounds.

GMC Sierra 1500 Reviews

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