Spec Sizes

GMC Sierra 2500HD vs GMC Sierra 1500 Dimensions & Size Comparison

Comparing 2021 catalog dimensions. GMC Sierra 2500HD · GMC Sierra 1500

Same scale for both vehicles. Generic silhouette — proportional to measured length, height, width, wheelbase, and clearance.

Side view
  • Length235.5 in – 266.1 in
  • Height79.7 in – 80.0 in
  • Wheelbase141.6 in – 172.0 in
  • Ground clearance10.1 in – 10.2 in
  • Curb weight6,105 lb – 6,950 lb
Front / width
  • Width81.8 in
  • GMC Sierra 1500 width81.2 in

Which is bigger?

  • Length: GMC Sierra 1500 is 15.4 in shorter (250.8 in vs 235.4 in)
  • Width: GMC Sierra 1500 is 0.6 in narrower (81.8 in vs 81.2 in)
  • Height: GMC Sierra 2500HD is 3.0 in taller (79.8 in vs 76.8 in)
  • Wheelbase: GMC Sierra 2500HD has a 8.5 in longer wheelbase (156.8 in vs 148.3 in)
  • Ground clearance: GMC Sierra 2500HD has 0.7 in more ground clearance (10.1 in vs 9.4 in)
  • Curb weight: GMC Sierra 2500HD is 1,503 lb heavier (6,528 lb vs 5,025 lb)

Biggest size differences

  1. Curb weight: GMC Sierra 2500HD is 1,503 lb heavier (6,528 lb vs 5,025 lb)
  2. Ground clearance: GMC Sierra 2500HD has 0.7 in more ground clearance (10.1 in vs 9.4 in)
  3. Length: GMC Sierra 1500 is 15.4 in shorter (250.8 in vs 235.4 in)
  4. Wheelbase: GMC Sierra 2500HD has a 8.5 in longer wheelbase (156.8 in vs 148.3 in)
  5. Height: GMC Sierra 2500HD is 3.0 in taller (79.8 in vs 76.8 in)

Practical verdicts

  • Easier to fit in a short garageGMC Sierra 1500 — GMC Sierra 1500 is shorter by 15.4 in Check garage fit for GMC Sierra 2500HD · garage fit for GMC Sierra 1500
  • Narrower for tight parkingGMC Sierra 1500 — GMC Sierra 1500 is narrower by 0.6 in
  • More ground clearanceGMC Sierra 2500HD — GMC Sierra 2500HD has 0.7 in more clearance
  • Smaller exterior footprintGMC Sierra 1500 — Based on length × width (GMC Sierra 1500)

Dimension comparison

SpecGMC Sierra 2500HDGMC Sierra 1500Difference
Length250.8 in235.4 in15.4 in
Width81.8 in81.2 in0.6 in
Height79.8 in76.8 in3.0 in
Wheelbase156.8 in148.3 in8.5 in
Ground clearance10.1 in9.4 in0.7 in
Curb weight6,528 lb5,025 lb1,503 lb

Values use trim midpoints when a model year lists a range (e.g. length 235.5 in – 266.1 in).

Compare by year

Overlapping model years with dimension data.

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