Dimensions of the GMC Sierra - Generation 3 (2007-2014)

IFCAR, Public domain, via Wikimedia Commons

On this page, you will find the general dimensions of the GMC Sierra 2500 HD & 3500 generation 3 (2007-to ), including cargo box dimensions. This page won't display all dimensions. If you are looking for the exact dimensions of a specific cab style, please select one below. First, let's make sure we have the right truck in front of you:

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Production years: 2007 - 2014 Generation: 3 Type of van: pickup Body styles: Regular Cab Extended Cab Crew Cab Also called: VIA VTRUX GMC Sierra Chevrolet/GMC C/K

Dimensions in tables

Sierra truck bed dimensions

Bodystyle Crew Cab
Standard Box (6.5')
Crew Cab
Long Box (8')
Extended Cab
Standard Box (6.5')
Extended Cab
Long Box (8')
Regular Cab
Long Box (8')
Volume (cu. ft.) 56.9 70.7 56.9 70.7 70.7
Length at floor 78.7 97.6 78.7 97.6 97.6
Inside height 19.5 19.5 19.5 19.5 19.5
Width at wheelhouse 50 50 50 50 50
Maximum width at floor 64.8 64.8 64.8 64.8 64.8

Wheelbase of the Sierra:

Bodystyle Length (inch)
Crew Cab - Standard Box (6.5') 153
Crew Cab - Long Box (8') 167
Extended Cab - Standard Box (6.5') 143.5
Extended Cab - Long Box (8') 157.5
Regular Cab - Long Box (8') 133

This model comes in 3 body styles

There are 3 bodystyles for this Sierra 2500 HD & 3500 in our database. For exact dimensions, please click on one below:

Most truck models come in different body styles. The Sierra 3 2500 HD & 3500 comes in 3 body styles. Typically the dimensions of different bodystyles differ slightly. The dimensions will greatly overlap, so this page will be helpful to get a general sense of sizing. You can click through to more detailed dimension pages per cab style.

Body styles generally have different cab styles, with the most common ones being the regular cab (two-door), extended cab (more space behind seats), and crew cab (four-door). Manufacturers also offer different trim types, although these will generally not affect dimensions so we don't always list them here.

GMC Sierra Crew Cab

Check the dimensions of the Crew Cab

GMC Sierra Extended Cab

Check the dimensions of the Extended Cab

GMC Sierra Regular Cab

Check the dimensions of the Regular Cab

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