GMCSierra 15002018 · Fourth generation · facelift
  1. GMC Sierra 1500
  2. Specs
  3. Dimensions
  4. 2018

2018 GMC Sierra 1500 Dimensions

205.6–239 in
Length

varies by configuration

80 in
Width
73.5–74.2 in
Height

varies by configuration

119–153 in
Wheelbase

varies by configuration

8.2–8.9 in
Ground clearance

varies by configuration

What stays the same

Width is identical across stored configurations.

What changes between configurations?

  • Shortest stored length205.6 in — 4 configurations tie for lowest
  • Longest stored length239 in — 4 configurations tie for highest
  • Lowest stored clearance8.2 in — 2 configurations tie for lowest
  • Highest stored clearance8.9 in — 11 configurations tie for highest

Catalog dataManufacturer figures stored on configuration rows

Will it fit?

Check the largest stored dimensions against your garage or parking space.

Checking against the longest / widest / tallest catalog values this year.

Units

Maximum space

Enter the space you have. Door swing and mirrors are not checked.

Compare trims

ConfigurationLengthHeightWheelbaseClearanceDrive
Denali 4x2 Crew Cab 5.75 ft. box 143.5 in. WB229.5 in74.2 in143.5 in8.7 in4x2
Denali 4x4 Crew Cab 5.75 ft. box 143.5 in. WB229.5 in74 in143.5 in8.9 in4x4
Denali 4x4 Crew Cab 6.5 ft. box 153 in. WB239 in73.8 in153 in8.9 in4x4
Base 4x4 Crew Cab 5.75 ft. box 143.5 in. WB229.5 in74 in143.5 in8.9 in4x4
Base 4x4 Double Cab 6.6 ft. box 143.5 in. WB229.5 in73.9 in143.5 in8.9 in4x4
Base 4x4 Regular Cab 6.6 ft. box 119 in. WB205.6 in74.1 in119 in8.6 in4x4
Base 4x4 Regular Cab 8 ft. box 133 in. WB224.4 in73.8 in133 in8.8 in4x4
SLE 4x4 Crew Cab 5.75 ft. box 143.5 in. WB229.5 in74 in143.5 in8.9 in4x4
SLE 4x4 Double Cab 6.6 ft. box 143.5 in. WB229.5 in73.9 in143.5 in8.9 in4x4
SLE 4x4 Regular Cab 6.6 ft. box 119 in. WB205.6 in74.1 in119 in8.6 in4x4
SLE 4x4 Regular Cab 8 ft. box 133 in. WB224.4 in73.8 in133 in8.8 in4x4
Base 4x2 Regular Cab 6.6 ft. box 119 in. WB205.6 in74 in119 in8.2 in4x2
Base 4x4 Crew Cab 6.5 ft. box 153 in. WB239 in73.8 in153 in8.9 in4x4
SLE 4x2 Regular Cab 6.6 ft. box 119 in. WB205.6 in74 in119 in8.2 in4x2
SLE 4x4 Crew Cab 6.5 ft. box 153 in. WB239 in73.8 in153 in8.9 in4x4
SLT 4x2 Crew Cab 5.75 ft. box 143.5 in. WB229.5 in74.2 in143.5 in8.7 in4x2
SLT 4x2 Double Cab 6.6 ft. box 143.5 in. WB229.5 in73.9 in143.5 in8.5 in4x2
SLT 4x4 Crew Cab 5.75 ft. box 143.5 in. WB229.5 in74 in143.5 in8.9 in4x4
SLT 4x4 Crew Cab 6.5 ft. box 153 in. WB239 in73.8 in153 in8.9 in4x4
SLT 4x4 Double Cab 6.6 ft. box 143.5 in. WB229.5 in73.9 in143.5 in8.9 in4x4
Base 4x2 Crew Cab 5.75 ft. box 143.5 in. WB229.5 in74.2 in143.5 in8.7 in4x2
Base 4x2 Double Cab 6.6 ft. box 143.5 in. WB229.5 in73.9 in143.5 in8.5 in4x2
Base 4x2 Regular Cab 8 ft. box 133 in. WB224.4 in73.5 in133 in8.3 in4x2
SLE 4x2 Crew Cab 5.75 ft. box 143.5 in. WB229.5 in74.2 in143.5 in8.7 in4x2
SLE 4x2 Double Cab 6.6 ft. box 143.5 in. WB229.5 in73.9 in143.5 in8.5 in4x2
SLE 4x2 Regular Cab 8 ft. box 133 in. WB224.4 in73.5 in133 in8.3 in4x2

Compare two configurations

Questions

How long is a 2018 GMC Sierra 1500?
205.6–239 in.
How wide is it?
80 in.
Do dimensions vary by trim?
Yes. Stored length, height, wheelbase, and ground clearance differ across configurations.
Which stored configuration has the most ground clearance?
8.9 in — 11 configurations tie for highest

Values vary by configuration. Confirm the door jamb and owner’s manual for the vehicle you have.