2026 Mercedes-Benz GLB facing away

2026 Mercedes-Benz GLB Cargo Space Size

How Large Is the 2026 Mercedes-Benz GLB Cargo Space? 

At Mercedes-Benz of Arrowhead in Peoria, AZ, many shoppers ask how much room the 2026 Mercedes-Benz GLB really offers for luggage, groceries, sports gear, and road-trip essentials. The short answer? A lot. With the seats arranged in different ways, the 2026 Mercedes-Benz GLB cargo capacity ranges from 12.4 to 62 cubic feet, making it one of the most versatile compact luxury SUVs on the market. 



2026 Mercedes-Benz GLB seating view

GLB Cargo Capacity with All Seats in Use 

2026 Mercedes-Benz GLB cargo space with third row up 

If you opt for the available third-row seating, the GLB still provides 12.4 cubic feet of space behind the last row—just enough for backpacks, groceries, or compact luggage. Mercedes-Benz engineered this SUV to maximize vertical space, ensuring the load area remains usable even when seating seven passengers. 


Read More: Compare the Trim Levels of the 2026 GLB SUV


2026 Mercedes-Benz GLB rear cargo space with seats folded down

GLB Cargo Space with Rear Seats Folded 

2026 Mercedes-Benz GLB maximum cargo capacity 

When you fold the second row (and optional third row), the cargo area expands dramatically to 62 cubic feet. This opens the door to transporting larger items such as furniture, sports equipment, pet crates, or bulky travel gear. The flat load floor and wide hatch opening make it especially easy to load and unload. 



Practical Features That Enhance Cargo Usefulness 

2026 Mercedes-Benz GLB utility and cargo convenience 

Beyond the numbers, the GLB delivers thoughtful features to support everyday versatility: 

  • Split-folding rear seats 
  • Low lift-in height 
  • Hands-free liftgate (available) 
  • Wide cargo opening for bulky items 

These features make the GLB model’s cargo area not only spacious but also highly functional. 



Why the 2026 GLB Is Ideal for Growing Families and Busy Drivers 

2026 Mercedes-Benz GLB interior versatility benefits 

Whether you’re carpooling, traveling, or hauling gear, the 2026 GLB model’s configurable interior adapts to your lifestyle. It’s one of the few luxury compact SUVs offering a third-row option, and its smart packaging gives you more usable space than many competitors in its class. 

Test drive the 2026 Mercedes-Benz GLB in Peoria, AZ 

Ready to see how the 2026 Mercedes-Benz GLB cargo space size works for your lifestyle? Visit Mercedes-Benz of Arrowhead in Peoria, AZ, to explore the GLB in person. Our team can show you how the seats fold, how much gear fits behind each row, and which configuration is best for your family or daily commute. 

Contact us today to schedule a test drive, or stop by our showroom in Peoria, AZ, to experience the smart, flexible rear space of the 2026 Mercedes-Benz GLB for yourself.