Used 2022 Four Wheel Camper Grandby Flat Bed 7'10 Expandable
Premium hard-sided popup flatbed truck camper—featuring dual solar panels, a spacious side-dinette layout, a flushing cassette toilet, and a full kitchen built for extreme off-grid overlanding.
Why This Used 2022 Grandby Flat Bed Stands Out
If you are searching for the ultimate, low-profile overland rig engineered to go anywhere your truck can climb, this Four Wheel Camper Grandby Flat Bed is an absolute grail find. Specifically designed for full-size trucks with an 8-foot flatbed tray, the Grandby Flat Bed completely maximizes interior living space by utilizing a wide-body footprint that standard slide-in campers simply cannot match. Built with an incredibly durable, fully welded aluminum flex-frame, this camper is engineered to withstand severe trail articulation while maintaining a low-profile roof height that reduces wind resistance on the highway. Pop the top in under a minute, and you are greeted with a remarkably spacious side-dinette floorplan flanked by insulated, multi-layered soft walls. The culinary kitchen features a flush-mount two-burner stove, a deep sink, and an efficient 12V compressor refrigerator. Up front, an extended cab-over master bed gives you a large, comfortable sleeping surface with extensive under-bed storage, while a private, built-in cassette toilet provides incredible self-sufficiency miles away from civilization.
Highlights of this Unit:
-
Wide-Body Flat Bed Footprint: Maximizes interior square footage with a unique side-dinette layout, panoramic soft-wall windows, and a generous amount of aisle space and cabinet storage.
-
Welded Aluminum Flex-Frame: Legendary Four Wheel Camper structural engineering designed to dynamically flex with your truck chassis over washboard roads and technical off-road trails.
-
Full Off-Grid Utility Package: Factory-equipped with an advanced roof-mounted solar array, high-efficiency 12V compressor refrigeration, an onboard furnace, and a private flushing cassette toilet.
The Sumner RV Difference
When you partner with Sumner RV, you are joining a 60-year legacy of integrity. As a family-run dealership hand-picked by the Nash family to carry on their tradition, we prioritize long-term customer relationships over transactional sales. To guarantee your absolute peace of mind, we invite new owners to spend their first night right here on our property along our year-round salmon creek—ensuring you are 100% comfortable with every feature before you head out to see Mt. Rainier.
The team here is awesome to work with. They went above and beyond to get us out the door even faster than usual. Service is great. Sales team is friendly and not pushy. Management and finance were great. This is a great place to purchase your RV from. - Christopher
You Save: $10,281
Sale Price: $21,214
Stock# 729GSA
| Length | 144 ft |
Loading
www.usedrvsforsale.com is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes sales tax, registration tags, and delivery fees. Manufacturer-provided pictures, specifications and features may be used as needed. Inventory shown may be only a partial listing of the entire inventory. Please contact us at 800-515-9672 for availability as our inventory changes rapidly. All calculated payments are an estimate only and do not constitute a commitment that financing or a specific interest rate or term is available.
Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.

