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Forest River Berkshire XL 37B

Class Abuilt 2025– (in production)Mixed build tierFindable on the used market
WHAT ONE COSTS
$497,700MSRP today

Still in production. A used 2023 would run roughly $293,700.

THE SPECS
Length38.7 ft
Height (incl. A/C)12.8 ft
Width8.3 ft
GVWR38,320 lb
Dry weightnot published
Sleeps6
Slide-outs3
Fresh water103 gal
Grey water66 gal
Black water42 gal
Air conditioning30,000 BTU
Solar (standard)200 W
Awning17.5 ft
Fuel100 gal
Generator8 kW Onan diesel generator

A missing row means the maker never published that figure: unknown, not zero.

WHERE PEOPLE SLEEP
  • 1× King bed in bedroom slide, motorized Tilt-a-View(Permanent)72×80
  • 1× Sofa bed (powered theater seating optional)(Convertible)—
  • 1× Free-standing dinette option with hutch and four chairs(Convertible)—
HOW IT'S BUILT: 4/5
WallsAzdel composite
FrameSteel
RoofStandard
UnderbellyEnclosed

Forest River (Mixed tier): Forest River

YEAR BY YEAR: WHAT CHANGED
  • 2025Introduced alongside the 40H on the 38,320 lb XL chassis
  • 2026Dealer-stock-only
FINDING ONE

Findable: a few listed nationwide most weeks. Why: Forest River is a volume manufacturer; only 2 model years; still in production. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

Shortest XL - all-electric, 380 hp ISL power in a 38-foot body.

OTHER BERKSHIRE FLOORPLANS
34B · 32,400 lb · sleeps 534QS · 32,400 lb · sleeps 7360FWS · 28,000 lb · sleeps 4360QS · 28,000 lb · sleeps 538A · 33,350 lb · sleeps 5390BH · 27,910 lb · sleeps 6390QS · 28,000 lb · sleeps 5390RB · 27,910 lb · sleeps 539A · 33,400 lb · sleeps 539B · 33,400 lb · sleeps 7400BH · 29,500 lb · sleeps 540F · 37,320 lb · sleeps 7XL 37A · 38,320 lb · sleeps 4XL 40A · 33,000 lb · sleeps 4the whole line →
Find one for sale

Live listings for the XL 37B on the big marketplaces. Each search opens pre-filled with this exact floorplan:

RV Trader ↗Camping World ↗FB Marketplace ↗Google ↗

Inventory varies by site and day. Slim pickings? search the whole Berkshire line ↗

Is the XL 37B your #1, or just a spec sheet?

These are the facts. Whether it beats the other six thousand rigs for you depends on what you care about. Set your priorities as sliders, switch on your hard limits, and watch the whole market re-rank around them. Every exclusion explained, every margin shown.

See where it ranks for you →

Data compiled from manufacturer spec sheets, retrieved 2026-07.