GMCSierra 15002021 · Fifth generation
  1. GMC Sierra 1500
  2. Specs
  3. Dimensions
  4. 2021

2021 GMC Sierra 1500 Dimensions

229.6–241.2 in
Length

varies by configuration

81.2 in
Width
75.4–78.3 in
Height

varies by configuration

147.4 in / 157 in / 139.6 in
Wheelbase

varies by configuration

7.9–10.9 in
Ground clearance

varies by configuration

What stays the same

Width is identical across stored configurations.

What changes between configurations?

  • Shortest stored length229.6 in — 2 configurations tie for lowest
  • Longest stored length241.2 in — 6 configurations tie for highest
  • Lowest stored clearance7.9 in — 8 configurations tie for lowest
  • Highest stored clearance10.9 in · AT4 4x4 Crew Cab 5.75 ft. box 147.4 in. WB

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
AT4 4x4 Crew Cab 5.75 ft. box 147.4 in. WB231.7 in78.3 in147.4 in10.9 in4x4
Denali 4x2 Crew Cab 5.75 ft. box 147.4 in. WB231.7 in75.5 in147.4 in7.9 in4x2
Denali 4x4 Crew Cab 5.75 ft. box 147.4 in. WB231.7 in75.5 in147.4 in8.1 in4x4
Denali 4x4 Crew Cab 6.6 ft. box 157 in. WB241.2 in75.4 in157 in8 in4x4
Elevation 4x2 Crew Cab 5.75 ft. box 147.4 in. WB231.7 in75.5 in147.4 in7.9 in4x2
Elevation 4x2 Double Cab 6.6 ft. box 147.4 in. WB231.8 in75.6 in147.4 in7.9 in4x2
Elevation 4x4 Double Cab 6.6 ft. box 147.4 in. WB231.8 in75.6 in147.4 in8.1 in4x4
SLE 4x2 Crew Cab 5.75 ft. box 147.4 in. WB231.7 in75.5 in147.4 in7.9 in4x2
SLE 4x2 Double Cab 6.6 ft. box 147.4 in. WB231.8 in75.6 in147.4 in7.9 in4x2
SLE 4x4 Double Cab 6.6 ft. box 147.4 in. WB231.8 in75.6 in147.4 in8.1 in4x4
SLT 4x2 Crew Cab 5.75 ft. box 147.4 in. WB231.7 in75.5 in147.4 in7.9 in4x2
SLT 4x4 Crew Cab 5.75 ft. box 147.4 in. WB231.7 in75.5 in147.4 in8.1 in4x4
SLT 4x4 Crew Cab 6.6 ft. box 157 in. WB241.2 in75.4 in157 in8 in4x4
AT4 4x4 Crew Cab 6.6 ft. box 157 in. WB241.2 in78.2 in157 in10.7 in4x4
Elevation 4x4 Crew Cab 5.75 ft. box 147.4 in. WB231.7 in75.5 in147.4 in8.1 in4x4
Elevation 4x4 Crew Cab 6.6 ft. box 157 in. WB241.2 in75.4 in157 in8 in4x4
SLE 4x4 Crew Cab 5.75 ft. box 147.4 in. WB231.7 in75.5 in147.4 in8.1 in4x4
SLE 4x4 Crew Cab 6.6 ft. box 157 in. WB241.2 in75.4 in157 in8 in4x4
Base 4x2 Crew Cab 5.75 ft. box 147.4 in. WB231.7 in75.5 in147.4 in7.9 in4x2
Base 4x2 Double Cab 6.6 ft. box 147.4 in. WB231.8 in75.6 in147.4 in7.9 in4x2
Base 4x2 Regular Cab 8 ft. box 139.6 in. WB229.6 in75.6 in139.6 in8.1 in4x2
Base 4x4 Crew Cab 5.75 ft. box 147.4 in. WB231.7 in75.5 in147.4 in8.1 in4x4
Base 4x4 Crew Cab 6.6 ft. box 157 in. WB241.2 in75.4 in157 in8 in4x4
Base 4x4 Double Cab 6.6 ft. box 147.4 in. WB231.8 in75.6 in147.4 in8.1 in4x4
Base 4x4 Regular Cab 8 ft. box 139.6 in. WB229.6 in75.6 in139.6 in8.4 in4x4

Compare two configurations

Questions

How long is a 2021 GMC Sierra 1500?
229.6–241.2 in.
How wide is it?
81.2 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?
10.9 in · AT4 4x4 Crew Cab 5.75 ft. box 147.4 in. WB

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