Why choose the Forest River No boundaries 20.3 Beast Mode?
The 2026 Forest River No Boundaries NB20.3 Beast Mode is a rugged yet lightweight travel trailer designed for outdoor enthusiasts who want serious capability without the heft. Towable with a 4- or 6-cylinder vehicle, it strikes a smart balance between durability and maneuverability.
Length: ~26′ 2”
Dry Weight (UVW): ~5,673 lb
Hitch Weight: ~730 lb
Cargo Capacity (CCC): ~1,500 lb
Tank Capacities: Fresh 40 gal ? Grey 40 gal ? Black 30 gal
Sleeps: Up to 6 (Murphy bed, double-size rear bunks, dinette bed)
Slideouts: 1 slide with booth dinette
Awning: 18′ exterior awning for shade and outdoor living
The NB20.3 comes packed with the manufacturer’s full C-Series package, which includes:
Laminated aluminum-framed walls with Azdel composite panels
Fully enclosed and heated underbelly insulated with radiant foil
Cold-weather readiness: 12V heated tank pads and forced-air heating
15,000 BTU A/C
Central vacuum with hose kit
All-terrain tires with spare and TPMS (tire-pressure monitoring system)
Solid-surface steps, Bluetooth speaker, USB-C ports inside/outside
Air fryer microwave, motion lighting, exterior spray port (hot & cold), tankless water heater
Outdoor kitchen, rear accessory hitch, upgraded shower, premium window treatments
Jackknife sofa or theater seating, depending on configuration
When outfitted with the Beast Mode package, this model unlocks serious off-road and power capabilities:
Independent suspension optimized for clearance and handling off-road
400 W solar system (two 200 W panels) plus inverter ready for 2,000 W
Fresh water filter, Maxxair roof vent cover, and improved roof airflow
Rear bunks: Oversized 52” * 75” double bunks in the back corner—ideal for both adults and kids.
Murphy bed: Front features a queen-size Murphy bed that frees up floor space during the day.
Dinette slide: Booth-style slide makes room for dining, games, or lounge time.
Kitchen: Ample countertop space, sink with cup wash system, microwave/air fryer, large fridge, counter bar with two stools.
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