Chevrolet · Full-size heavy-duty pickup
Chevrolet Silverado 2500HD bed dimensions & sizes by year
Buying a tonneau cover and not sure it'll fit? Pick your model year to get the exact bed length of your Silverado 2500HD in inches — plus the covers built for it. No guesswork, no wrong-size returns.
Find your bed size in 10 seconds
Your 2022 Silverado 2500HD
Came in 2 bed lengths (T1 HD (New Body Style)):
Your 2022 could be any of these depending on cab — measure your bed to be sure which one you have.
Not sure which bed you have?
Two Silverado 2500HDs from the same year can have different beds depending on cab. Don't trust the badge — measure it. It takes 30 seconds and saves a return.
- 1
Close the tailgate.
- 2
Put a tape measure on the bed floor against the bulkhead (the wall behind the cab).
- 3
Measure straight back to the inside of the closed tailgate.
- 4
Match that number to a bed length above — covers are sold by category (5.5 ft, 6.5 ft, 8 ft…), so round to the nearest one.
Silverado 2500HD bed sizes & specs, year by year
Silverado 2500HD · T1 HD (New Body Style)
| Bed | Length | Inches | Cabs | |
|---|---|---|---|---|
| 6.9 ft | 6'10" | 82.25" | Double Cab, Crew Cab | Covers → |
| 8.2 ft | 8'2" | 98.27" | Regular Cab, Double Cab, Crew Cab | Covers → |
- Cab styles
- Regular Cab, Double Cab, Crew Cab
- Drivetrain
- RWD, 4WD
- Max towing
- 22,500 lb
- Max payload
- 3,979 lb
- MSRP from
- $46,395 (launch)
Engines (2)
- 6.6L L8T Gas V8 401 hp · 464 lb-ft · Gas
- 6.6L Duramax L5P Diesel 470 hp · 975 lb-ft · Diesel
Standard box GREW to 82.25" (marketed 6'9"/6'10"/6.9 ft - same bed) and is NOT compatible with pre-2020 HD covers. New 6.6L L8T gas V8 replaced old 6.0L. Duramax uprated to 470/975 in 2024 refresh. 'Multi-Flex' tailgate optional (~2022+). SRW only on 2500HD.
Silverado 2500HD · K2XX HD
| Bed | Length | Inches | Cabs | |
|---|---|---|---|---|
| 6.5 ft | 6'6" | 78.9" | Crew Cab | Covers → |
| 8 ft | 8'2" | 97.8" | Regular Cab, Double Cab, Crew Cab | Covers → |
- Cab styles
- Regular Cab, Double Cab, Crew Cab
- Drivetrain
- RWD, 4WD
- Max towing
- 18,100 lb
- Max payload
- 3,534 lb
- MSRP from
- $38,120 (launch)
Engines (3)
- 6.0L Vortec V8 360 hp · 380 lb-ft · Gas
- 6.6L Duramax LML Diesel 397 hp · 765 lb-ft · Diesel
- 6.6L Duramax L5P Diesel 445 hp · 910 lb-ft · Diesel
Standard 6'6" box (78.9") is CREW CAB ONLY this gen; Regular and Double Cab are 8' long-bed only. L5P Duramax replaced LML for MY2017. SRW only.
Silverado 2500HD · GMT900 HD
| Bed | Length | Inches | Cabs | |
|---|---|---|---|---|
| 6.5 ft | 6'6" | 78.7" | Extended Cab, Crew Cab | Covers → |
| 8 ft | 8'2" | 97.6" | Regular Cab, Extended Cab, Crew Cab | Covers → |
- Cab styles
- Regular Cab, Extended Cab, Crew Cab
- Drivetrain
- RWD, 4WD
- Max towing
- 17,800 lb
- Max payload
- 4,200 lb
- MSRP from
- $28,500 (launch)
Engines (3)
- 6.0L Vortec V8 360 hp · 380 lb-ft · Gas
- 6.6L Duramax LMM Diesel 365 hp · 660 lb-ft · Diesel
- 6.6L Duramax LML Diesel 397 hp · 765 lb-ft · Diesel
SRW only. Standard 6'6" box is 78.7" - NOT interchangeable with later 82.25" T1 box despite both labeled ~6.5/6.9 ft. Regular Cab is long-bed only.
Silverado 2500HD · GMT800 HD (Classic)
| Bed | Length | Inches | Cabs | |
|---|---|---|---|---|
| 6.5 ft | 6'6" | 78.7" | Extended Cab, Crew Cab | Covers → |
| 8 ft | 8'0" | 97.6" | Regular Cab, Extended Cab | Covers → |
- Cab styles
- Regular Cab, Extended Cab, Crew Cab
- Drivetrain
- RWD, 4WD
- Max towing
- 13,000 lb
- Max payload
- 4,200 lb
- MSRP from
- $27,000 (launch)
Engines (3)
- 6.0L Vortec V8 360 hp · 380 lb-ft · Gas
- 8.1L Vortec V8 330 hp · 450 lb-ft · Gas
- 6.6L Duramax LBZ Diesel 360 hp · 650 lb-ft · Diesel
GMT800 HD 'Classic' has different bed-rail profile/mounting than GMT900; retailers list 99-07 Classic covers separately. SRW only. Exact bed inches approximate (verify).
Tonneau covers that fit the Silverado 2500HD
Not sure a cover will fit? Run the Silverado 2500HD fitment checker → for your bed length, the cover types that fit, and any Silverado 2500HD-specific gotchas.
Hands-on Silverado 2500HD cover reviews are landing soon. In the meantime, browse vetted, correctly-sized options for your bed:
Silverado 2500HD bed size — frequently asked
What bed sizes does the Chevrolet Silverado 2500HD come in?
The Chevrolet Silverado 2500HD has been offered with 4 bed lengths: 6.9 ft (82.25"), 8.2 ft (98.27"), 6.5 ft (78.9") and 8 ft (97.8"). The exact bed on your truck depends on its model year and cab — choose your year above to see which covers fit.
How do I measure my Silverado 2500HD bed length?
Measure the inside floor of the bed, from the bulkhead (the wall behind the cab) to the inside of the closed tailgate. Round to the nearest standard size — tonneau covers are sold by bed-length category (e.g. 5.5 ft, 6.5 ft, 8 ft), not the exact inch.
What bed size is the newest Silverado 2500HD?
The current Silverado 2500HD (2020–present) comes with 6.9 ft (82.25") and 8.2 ft (98.27").
Will a tonneau cover from an older Silverado 2500HD fit a newer one?
Not necessarily. Covers are matched to a specific generation and bed length, and both the bed length and the rail design can change between generations. Always match your exact model year and bed size before buying — the year-by-year table below shows where the Silverado 2500HD changed.