2019 GMC Sierra 1500 bed size
The 2019 GMC Sierra 1500 was sold with 4 bed configurations: the Short Bed (5 ft 8 in) (Crew Cab) at 69.9 in long, the Standard Bed (6 ft 6 in) (Crew Cab) at 79.4 in long, the Standard Bed (6 ft 6 in) (Double Cab) at 79.4 in long, the Long Bed (8 ft) (Regular Cab) at 98.2 in long. Actual inches below — the advertised names round.
All configurations
| Cab | Bed (advertised) | Length (in) | Width (in) | Wheelhouses (in) | Cover class | |
|---|---|---|---|---|---|---|
| Crew Cab | Short Bed (5 ft 8 in) | 69.9 | 71.4 | 50.6 | 5.8 ft class | Details |
| Crew Cab | Standard Bed (6 ft 6 in) | 79.4 | 71.4 | 50.6 | 6.5 ft class | Details |
| Double Cab | Standard Bed (6 ft 6 in) | 79.4 | 71.4 | 50.6 | 6.5 ft class | Details |
| Regular Cab | Long Bed (8 ft) | 98.2 | 71.4 | 50.6 | 8 ft class | Details |
Crew Cab — Short Bed (5 ft 8 in)
MultiPro tailgate availableCarbonPro carbon-fiber composite bed available (AT4/Denali)
| Actual length | 69.9 in |
|---|---|
| Actual width (max) | 71.4 in |
| Width between wheelhouses | 50.6 in |
| Bed depth | 22.4 in |
| Generation | T1XX |
| Tonneau cover size class | 5.8 ft class |
What fits: tonneau covers in the 5.8 ft class class listed for the 2019 GMC Sierra 1500 Crew Cab with the Short Bed (5 ft 8 in). Bed mats and liners cut to 69.9 in; a 4×8 sheet lies flat only if the load is under 50.6 in wide between the wheelhouses.
Shop 5.8 ft class tonneau covers for this truck on Amazon (As an Amazon Associate I earn from qualifying purchases.)
Sources: Craig Dunn Motor City 2019 GMC Sierra 1500 cargo bed sizes (GM dealer) (checked 2026-10-27). Last verified 2026-10-27. Found an error? Tell us — see our accuracy disclaimer.
Crew Cab — Standard Bed (6 ft 6 in)
MultiPro tailgate available
| Actual length | 79.4 in |
|---|---|
| Actual width (max) | 71.4 in |
| Width between wheelhouses | 50.6 in |
| Bed depth | 22.4 in |
| Generation | T1XX |
| Tonneau cover size class | 6.5 ft class |
What fits: tonneau covers in the 6.5 ft class class listed for the 2019 GMC Sierra 1500 Crew Cab with the Standard Bed (6 ft 6 in). Bed mats and liners cut to 79.4 in; a 4×8 sheet lies flat only if the load is under 50.6 in wide between the wheelhouses.
Shop 6.5 ft class tonneau covers for this truck on Amazon (As an Amazon Associate I earn from qualifying purchases.)
Sources: Craig Dunn Motor City 2019 GMC Sierra 1500 cargo bed sizes (GM dealer) (checked 2026-10-27). Last verified 2026-10-27. Found an error? Tell us — see our accuracy disclaimer.
Double Cab — Standard Bed (6 ft 6 in)
MultiPro tailgate available
| Actual length | 79.4 in |
|---|---|
| Actual width (max) | 71.4 in |
| Width between wheelhouses | 50.6 in |
| Bed depth | 22.4 in |
| Generation | T1XX |
| Tonneau cover size class | 6.5 ft class |
What fits: tonneau covers in the 6.5 ft class class listed for the 2019 GMC Sierra 1500 Double Cab with the Standard Bed (6 ft 6 in). Bed mats and liners cut to 79.4 in; a 4×8 sheet lies flat only if the load is under 50.6 in wide between the wheelhouses.
Shop 6.5 ft class tonneau covers for this truck on Amazon (As an Amazon Associate I earn from qualifying purchases.)
Sources: Craig Dunn Motor City 2019 GMC Sierra 1500 cargo bed sizes (GM dealer) (checked 2026-10-27). Last verified 2026-10-27. Found an error? Tell us — see our accuracy disclaimer.
Regular Cab — Long Bed (8 ft)
MultiPro tailgate available
| Actual length | 98.2 in |
|---|---|
| Actual width (max) | 71.4 in |
| Width between wheelhouses | 50.6 in |
| Bed depth | 22.4 in |
| Generation | T1XX |
| Tonneau cover size class | 8 ft class |
What fits: tonneau covers in the 8 ft class class listed for the 2019 GMC Sierra 1500 Regular Cab with the Long Bed (8 ft). Bed mats and liners cut to 98.2 in; a 4×8 sheet lies flat only if the load is under 50.6 in wide between the wheelhouses.
Shop 8 ft class tonneau covers for this truck on Amazon (As an Amazon Associate I earn from qualifying purchases.)
Sources: Music City Autoplex GMC Sierra 1500 bed size 2018-2022 (dealer research) (checked 2026-10-27). Last verified 2026-10-27. Found an error? Tell us — see our accuracy disclaimer.