2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Crew Cab Standard Box Dimensions, Size & Specs

A standard home garage typically measures about 6 meters (approximately 20 feet) in depth and about 3 meters (approximately 10 feet) in width. The 2011 GMC Sierra 2500HD Crew Cab Standard Box is 6101 mm (20 feet) long and 2032 mm (6.66 feet) wide with mirrors opened. While length may be just at or slightly over standard garage depth, the width with mirrors folded is narrower but still can be tight when mirrors are opened. Owners may find it challenging to fit the truck comfortably in a standard one-car garage, especially when considering door clearance and additional space for maneuvering. A larger or customized garage is recommended for easier entry and exit.

With mirrors opened, the 2011 GMC Sierra 2500HD measures 2032 mm (about 79.9 inches) wide, which is on the wider end for full-size pickup trucks. This width allows for better visibility and safety but requires awareness when maneuvering in tight spaces. Comparable pickups such as the Ford F-250 and Ram 2500 typically have similar widths but may vary slightly depending on trim and configurations. This width places the Sierra 2500HD firmly in the category of large trucks designed for heavy-duty use, with a balance between on-road width and off-road capability.

The GMC Sierra 2500HD of this generation offers a ride height and ground clearance ranging from 208 mm to 213 mm (8.2 to 8.4 inches). This level of clearance is adequate for most off-road conditions faced by heavy-duty pickup trucks, such as navigating uneven terrain, rocks, and minor obstacles. The ground clearance helps prevent underbody damage and enhances approach and departure angles, which improve off-road performance. Coupled with its robust suspension and drivetrain, the Sierra 2500HD is capable of tackling demanding worksite or recreational off-road tasks.

The curb weight of the 2011 GMC Sierra 2500HD Crew Cab Standard Box ranges between 2791 kg and 3308 kg (approximately 6154 to 7293 pounds), depending on trim and equipment options. The maximum weight capacity, also known as Gross Vehicle Weight Rating (GVWR), varies from 4309 kg to 4536 kg (about 9497 to 10,000 pounds). This capacity reflects the truck’s heavy-duty construction, allowing it to handle substantial payloads and towing demands, which makes it popular among professionals needing a reliable work truck with strong hauling capabilities.

When the rear seats of the 2011 GMC Sierra 2500HD Crew Cab are folded down, the truck provides a luggage capacity of approximately 1718 liters (about 60.7 cubic feet). This expanded cargo space inside the cabin allows for secure transportation of larger or more numerous items beyond what fits in the truck bed, offering additional versatility for passengers who need to carry gear, tools, or personal belongings. This feature enhances utility, especially for those using the vehicle for both work and recreational activities.

Compared to its predecessor, the Sierra 2500HD III (GMT900 facelift 2011) maintained similar full-size truck dimensions but introduced subtle design tweaks that improved aerodynamics and interior space utilization. The length around 6101 mm (240.3 inches) and width of 2032 mm (79.9 inches) remained consistent with the previous generation, but the 2011 model featured updated aesthetics and refined ergonomics. The third generation was well-received for improved ride comfort and modernized features, while preserving the heavy-duty capabilities that customers expected.

Dimensionally, the 2011 GMC Sierra 2500HD is quite comparable to its main competitors such as the Ford F-250 and Ram 2500. The Sierra’s length of 6101 mm (240.3 inches) and width with mirrors opened at 2032 mm (79.9 inches) places it firmly in the same full-size heavy-duty truck category. While all three trucks offer similar exterior dimensions, differences can be noted in interior space, configurations, and bed options. The Sierra stands out with its refined interior and strong towing capabilities, though size-wise it competes closely with these rivals, offering buyers robust choices within the segment.

The 2011 GMC Sierra 2500HD offers multiple tire and rim size options to suit various driving needs, including off-road and highway performance. Rim sizes available include 7.5J x 17, 8J x 18, 8.5J x 18.5, and 20 inches. Tire sizes compatible with these rims are 245/75 R17, 265/70 R17, 265/70 R18, and 265/60 R20. These options give owners flexibility in balancing ride comfort, load capacity, and traction, while also allowing for customization based on terrain and usage preferences.

The 2011 GMC Sierra 2500HD Crew Cab Standard Box is a full-size heavy-duty pickup truck designed for demanding tasks such as towing, hauling, and off-road usage. Produced between 2011 and 2014 during the GMT900 facelift generation, this truck features a robust frame, powerful drivetrain options, and a comfortable crew cab for passenger convenience. With its substantial payload and towing capacities (maximum weight rating up to 4536 kg or 10,000 lbs), it is well-suited for commercial, industrial, and recreational use. Its size, power, and versatility make it a favored choice among professionals and enthusiasts needing durability combined with modern features.