Spec Sizes

GMC Models: Dimensions & Specifications

Browse GMC models and their recorded dimensions. Select a model to explore available years and detailed specifications.

Models covered
9
Catalog years
1999–2023

Coverage varies by model and year.

Showing 9 of 9 models

Model directory

Year ranges show the earliest and latest catalog records. Open the year list to see the model years covered. Not recorded means this measurement is not included in the current catalog.

Model directory
ModelCatalog yearsBody stylesLengthWidthHeightAvailable specificationsCoverage varies by year.
Acadia
2007–2022
View 16 model years
Crossover, SUV193.4 in – 200.8 in75.4 in – 78.9 in66.0 in – 72.8 in
Canyon
2004–2022
View 17 model years
Truck192.4 in – 225.0 in67.6 in – 74.3 in64.9 in – 70.7 in
HUMMER EV2022SUV (body-on-frame)216.8 in86.7 in79.1 in
Sierra 1500
1999–2023
View 25 model years
Truck203.0 in – 249.2 in77.1 in – 83.5 in70.6 in – 78.3 in
Sierra 2500HD
2001–2023
View 23 model years
Truck222.1 in – 266.1 in79.7 in – 81.8 in76.2 in – 80.0 in
Terrain
2010–2023
View 14 model years
Crossover, SUV182.3 in – 185.5 in72.4 in – 72.8 in65.4 in – 66.3 in
Yukon
1999–2023
View 25 model years
SUV (body-on-frame)198.8 in – 210.0 in76.8 in – 81.0 in72.8 in – 77.0 in
Yukon Denali
1999–2000
View 2 model years
SUV (body-on-frame)201.4 in76.8 in – 78.8 in74.0 in – 74.3 in
Yukon XL
2016–2023
View 8 model years
SUV (body-on-frame)224.4 in – 225.2 in80.5 in – 81.0 in74.4 in – 76.5 in

Shortest and longest recorded models

9 models in this catalog have a comparable recorded length. Each figure below is one configuration, not every version of that model.

Shortest recorded length

182.3 in

  • Terrain
    View matching years and trims
    • 2018SL Front-wheel Drive
    • 2018SLE Front-wheel Drive
    • 2018SLE All-wheel Drive
    • 2018SLT Front-wheel Drive
    • 2018SLT All-wheel Drive
    • 2018SLE Diesel Front-wheel Drive
    • 2018SLE Diesel All-wheel Drive
    • 2018SLT Diesel Front-wheel Drive
    • 2018SLT Diesel All-wheel Drive
    • 2018Denali Front-wheel Drive
    • 2018Denali All-wheel Drive
    • 2019SL Front-wheel Drive
    • 2019SLE Front-wheel Drive
    • 2019SLE All-wheel Drive
    • 2019SLT Front-wheel Drive
    • 2019SLT All-wheel Drive
    • 2019SLE Diesel Front-wheel Drive
    • 2019SLE Diesel All-wheel Drive
    • 2019SLT Diesel Front-wheel Drive
    • 2019SLT Diesel All-wheel Drive
    • 2019Denali Front-wheel Drive
    • 2019Denali All-wheel Drive
    • 2020SL Front-wheel Drive
    • 2020SLE Front-wheel Drive
    • 2020SLE All-wheel Drive
    • 2020SLT Front-wheel Drive
    • 2020SLT All-wheel Drive
    • 2020Denali Front-wheel Drive
    • 2020Denali All-wheel Drive
    • 2021SL Front-wheel Drive
    • 2021SLE Front-wheel Drive
    • 2021SLE All-wheel Drive
    • 2021SLT Front-wheel Drive
    • 2021SLT All-wheel Drive
    • 2022SLE Front-Wheel Drive
    • 2022SLE All-Wheel Drive
    • 2022SLT Front-Wheel Drive
    • 2022SLT All-Wheel Drive
    • 2022AT4 All-Wheel Drive
    • 2022Denali All-Wheel Drive
    • 2023SLE Front-Wheel Drive
    • 2023SLE All-Wheel Drive
    • 2023SLT Front-Wheel Drive
    • 2023SLT All-Wheel Drive
    • 2023AT4 All-Wheel Drive
    • 2023Denali All-Wheel Drive

Longest recorded length

266.1 in

  • Sierra 2500HD
    View matching years and trims
    • 2020Base 4x2 Crew Cab 8 ft. box 172 in. WB
    • 2020Base 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2020SLE 4x2 Crew Cab 8 ft. box 172 in. WB
    • 2020SLE 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2020SLT 4x2 Crew Cab 8 ft. box 172 in. WB
    • 2020SLT 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2020AT4 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2020Denali 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2021Base 4x2 Crew Cab 8 ft. box 172 in. WB
    • 2021Base 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2021SLE 4x2 Crew Cab 8 ft. box 172 in. WB
    • 2021SLE 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2021SLT 4x2 Crew Cab 8 ft. box 172 in. WB
    • 2021SLT 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2021AT4 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2021Denali 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2022Pro 4x2 Crew Cab 8 ft. box 172 in. WB
    • 2022Pro 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2022SLE 4x2 Crew Cab 8 ft. box 172 in. WB
    • 2022SLE 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2022SLT 4x2 Crew Cab 8 ft. box 172 in. WB
    • 2022SLT 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2022AT4 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2022Denali 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2023Pro 4x2 Crew Cab 8 ft. box 172 in. WB
    • 2023Pro 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2023SLE 4x2 Crew Cab 8 ft. box 172 in. WB
    • 2023SLE 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2023SLT 4x2 Crew Cab 8 ft. box 172 in. WB
    • 2023SLT 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2023AT4 4x4 Crew Cab 8 ft. box 172 in. WB
    • 2023Denali 4x4 Crew Cab 8 ft. box 172 in. WB

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Coverage and methodology

This page lists the GMC models published in the SpecSizes catalog. It is not a complete manufacturer lineup, and it does not state a sales region.

A year span is the earliest and latest catalog record for that model. It does not mean every year in between is covered. Open the year list in the directory to see the model years that are actually included.

How to read these dimensions

A model can show a range because the catalog contains more than one configuration or model year. Each measurement is summarized on its own, so the shortest length and the widest width may come from different vehicles. Use a specific model year before making a garage or fitment decision.

Width is the width recorded for each configuration. The catalog does not say whether that width includes mirrors, so these figures are not described as with or without mirrors.

More specific measurements are on the model page, after you select a year.

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