CamperResearchFind your rig →

Forest River Berkshire XL 40RB

Class Abuilt 2015–16Mixed build tierPatient search on the used market
WHAT ONE COSTS
$151,700est. used (2016, 10 yr old)

Sticker was $285,191 in 2016. Out of production since 2016, so the used market is the only way to buy one. Estimate assumes a 2016 unit.

THE SPECS
Length41.0 ft
Height (incl. A/C)12.4 ft
Width8.3 ft
GVWR32,000 lb
Dry weightnot published
Sleeps5
Slide-outs4
Fresh water86 gal
Grey water66 gal
Black water42 gal
Air conditioning30,000 BTU
Fuel100 gal
Generator8 kW Onan diesel generator

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

WHERE PEOPLE SLEEP
  • Rear queen/king bed(Permanent)
  • Sofa bed(Convertible)
  • Dinette(Convertible)
HOW IT'S BUILT: 4/5
WallsAzdel composite
FrameSteel
RoofStandard
UnderbellyEnclosed

Forest River (Mixed tier): Forest River

YEAR BY YEAR: WHAT CHANGED
  • 2015Introduced with the XL sub-series
  • 2016GVWR to 32,000 lb; final model year
FINDING ONE

Patient search: weeks of watching, and probably some travel. Why: Forest River is a volume manufacturer; only 2 model years; 10 years out of production. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

Early XL rear-bath couples plan, before the ISL engine became standard on the 40s.

OTHER BERKSHIRE FLOORPLANS
Find one for sale

Live listings for the XL 40RB on the big marketplaces. Each search opens pre-filled with this exact floorplan:

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

Is the XL 40RB 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 dealer and aggregator listings, retrieved 2026-07.