The real bed dimensions, payload, and wheel-arch clearances for the RAM 2500 and 3500 heavy-duty — and exactly what overland gear you can load. Below is a to-scale 3D model of the bed, built from measured data.
Drawn to scale from measured cargo dimensions. Wheel arches and usable floor shown in orange.
Measured cargo-area dimensions for the Crew Cab · 6'4" (2019–). Every gear-fit call on this page is computed from these.
Dimensions are approximate and sourced from measured references — verify against your exact model year and trim before purchasing gear. Payload includes passengers and accessories; check your door-jamb sticker.
Payload isn't usually the limit — geometry is. Here's a realistic overland load against the Crew Cab · 6'4" (2019–)'s 1678 kg (3,699 lb) payload budget.
The Kitchen Cube is a modular, aircraft-grade aluminum camp kitchen that packs down to a compact 12-inch (305 mm) cube to live in your truck bed, and deploys on the tailgate.
In the 2500 / 3500, that packed cube sits flat on the floor between the wheel arches with about 8.2 in (208 mm) of headroom below the bed rail — it fits with room to spare.
Join the Waitlist →Exact fitment specs ship with the waitlist. Coming 2026.
The RAM 2500 / 3500 (Crew Cab · 6'4" (2019–)) measures about 1938 × 1687 × 513 mm (76.3 × 66.4 × 20.2 in), with roughly 1410 mm (55.5 in) of flat floor between the wheel arches. Figures are approximate — verify against your exact trim before buying gear.
Payload for the RAM 2500 / 3500 is about 1678 kg (3,699 lb) — but that figure includes passengers and accessories, not just bed cargo. Budget conservatively and check the door-jamb sticker on your specific vehicle.
Most 40–75L overland fridges (roughly 445–935 mm long) fit ahead of the wheel wells, and drawer systems up to about 1410 mm wide fit on the flat floor between the arches. The arches rise about 200 mm (7.9 in) off the floor. Anything wider than the floor must sit above that line.
Yes. The Kitchen Cube packs down to a compact 12-inch (305 mm) cube, so it sits easily on the flat floor between the wheel arches of the 2500 / 3500, with room to spare. Join the waitlist for early access.