GMC Sierra - Extended Cab Dimensions (2007-2014)

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On this page you'll find the exact dimensions for the GMC Sierra Extended Cab 1500 generation 3, made from 2007 to . Below we'll list the dimensions for this pickup from verified sources. First, let's make sure you have the right dimensions in front of you:

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Production years: 2007 - present Generation: 3 Type of van: pickup Model variant: 1500 Body style: Extended Cab Also known as: VIA VTRUX GMC Sierra Chevrolet/GMC C/K

Dimensions in tables

Sierra truck bed dimensions (Extended Cab)

Truck bed dimensions Short Box (5.75') Standard Box (6.5') Long Box (8')
Volume (cu. ft.) 49.6 56.9 73.9
Length at floor 69.2 78.7 97.6
Inside height 19.5 19.5 19.5
Width at wheelhouse 50 50 50
Maximum width at floor 60.2 64.8 64.8

Wheelbase of the Sierra:

Wheelbase Length (inch)
Short Box (5.75') 134
Standard Box (6.5') 143.5
Long Box (8') 157.5

Exterior dimensions of the Sierra Extended Cab:

Dimension 4x2 4x4
Overall length - Short Box (5.75') 217.9 217.9
Overall length - Standard Box (6.5') 227.4 227.4
Overall length - Long Box (8') 246.6 246.6
Height - Short Box (5.75') 71.2 71.2
Height - Standard Box (6.5') 71.2 71.2
Height - Long Box (8') 70.8 70.8

Exterior width of the Extended Cab:

Exterior width 4x2 4x4
Overall width - Short Box (5.75') 78.5 78.5
Overall width - Standard Box (6.5') 78.5 78.5
Overall width - Long Box (8') 78.5 78.5
Width (mirrors folded) 81.5 81.5
Width (mirrors extended) 93.1 93.1

Extended Cab miscellaneous dimensions

Miscellaneous dimensions 4x2 4x4
Min. ground clearance - Short Box (5.75') 8 8.7
Min. ground clearance - Standard Box (6.5') 8 8.7
Min. ground clearance - Long Box (8') 8 8.4
Ground to top of load floor - Short Box (5.75') 31.6 33.7
Ground to top of load floor - Standard Box (6.5') 31.6 33.7
Ground to top of load floor - Long Box (8') 31.6 33.7

Interior dimensions

1st row dimensions Extended Cab
Head room 41
Shoulder room 61.4
Hip room 63.9
Leg room 41.3
2nd row dimensions Extended Cab
Head room 38.4
Shoulder room 65.1
Hip room 61.4
Leg room 33.7

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