Will the 2025 GMC Sierra 3500HD fit in my garage?
2025 GMC Sierra 3500HD Pro Regular Cab LB RWD
No
- Too big for a 20 x 20 ft double garage. Too long by 26.1 in.
- Door: 110.1 in spare width. 3.3 in above the roof.
Standard garage sizes
| Garage | Fits | Spare length | Each side |
|---|---|---|---|
| Single, 12 x 22 ft | No | -2.1 in | 31.0 in |
| Single, 14 x 24 ft | Yes | 21.9 in | 43.0 in |
| Double, 20 x 20 ft | No | -26.1 in | 79.0 in |
| Double, 24 x 24 ft | Yes | 21.9 in | 103.0 in |
| Door | Fits | Spare width | Above roof |
|---|---|---|---|
| 8 ft wide, 7 ft tall | Yes | 14.1 in | 3.3 in |
| 9 ft wide, 7 ft tall | Yes | 26.1 in | 3.3 in |
Size class
Truck.
Longest of 21 trucks (2025).
Median of 21 trucks (2025): 216.8 in long.
Wider than 86% of 22 trucks (2025).
What this cannot tell you
Fit ignores shelves, steps and open doors.
Mirror width is used for the door when listed.
- 2 or more sources
- 1 source
- Model-level, rule or estimate
- Sources disagree