2026 GMC Sierra EV MultiPro MidGate Dimensions
The 2026 GMC Sierra EV provides nearly 11 feet of total load floor length. This measurement is achieved when the MultiPro MidGate and Tailgate load-stop are fully open. Discover how this expands your cargo capacity and explore our Sierra EV inventory today.
The MultiPro MidGate Advantage
The removal of a traditional internal combustion engine allowed GMC engineers to completely redesign how a truck bed interacts with the cabin. The MultiPro MidGate is a foldable rear cabin wall that allows the 5-foot-11-inch standard cargo bed to expand directly into the passenger area. You can fold down the rear seats and lower the MidGate panel while leaving the rear glass in place, or remove the rear window entirely and stow it securely for maximum vertical clearance.
For drivers in the Albemarle region, this unlocks incredible utility. When you need to transport 10-foot kayaks out to the Pasquotank River or haul long lumber from a hardware store in Elizabeth City, you no longer have to leave items hanging dangerously over the tailgate. The expanded flat floor ensures your gear remains secure and fully supported. To see how the flat Ultium battery platform enables this massive pass-through space, read our comprehensive 2026 GMC Sierra EV model overview.
Expanding the Floor Length
To achieve the absolute maximum load length of 10 feet and 10 inches, the MidGate works in tandem with the standard MultiPro Tailgate. By lowering the primary tailgate and raising the integrated load-stop flap, you create a secure boundary that prevents long items from sliding out the back during acceleration.
You can confirm exact bed configurations and tailgate operating procedures on the official GMC Sierra EV dimensions page.
Cargo Dimensions and Specifications
Review the table below to see the exact cargo capacities and load lengths available on this electric truck.
| Cargo Feature | Measurement |
|---|---|
| Standard Bed Length | 5 feet 11 inches |
| MidGate Open Length (Tailgate Up) | 9 feet 1 inch |
| MidGate Open Length (Tailgate Down + Load Stop) | 10 feet 10 inches |
| Front eTrunk Volume | 11.0 cubic feet |
| Max Payload Capacity | Up to 2,250 lbs when properly equipped |
The Front eTrunk
The cargo utility extends to the front of the vehicle as well. The hood opens to reveal a massive, weatherproof eTrunk offering 11 cubic feet of lockable storage space. This area features a flat load floor, built-in grocery bag hooks, and integrated cargo tie-downs.
Most importantly, the eTrunk includes a built-in 120-volt power outlet. This allows you to charge power tools securely while parked at a job site or power accessories during a weekend camping trip, further enhancing the truck's overall versatility.
The cargo utility extends to the front of the vehicle as well. The hood opens to reveal a massive, weatherproof eTrunk offering 11 cubic feet of lockable storage space. This area features a flat load floor, built-in grocery bag hooks, and integrated cargo tie-downs.
Most importantly, the eTrunk includes a built-in 120-volt power outlet. This allows you to charge power tools securely while parked at a job site or power accessories during a weekend camping trip, further enhancing the truck's overall versatility.
Disclaimer:
The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.
1Dealer Discount applied to everyone
1Dealer Discount applied to everyone