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2026 Outdoors RV Creek Side Mountain Series 21RBS
NewStock #31079
Listing price
2026 Creek Side Mountain Series 21RBS
Other floor plans with a similar body style, feature mix, and price range, prioritizing other manufacturers and brands.
This compact mountain-ready trailer packs serious four-season capability into 25 feet, featuring thermal-pane windows, triple-layer roof insulation, and a fully heated underbelly for year-round camping. The layout centers around a front Queen bed and rear full bath, with a slide-out dinette that opens up the living space. Built on Outdoors RV's rugged off-road chassis with MorRyde suspension, it's designed for adventurers who need a tough, maneuverable trailer that can handle mountain conditions without sacrificing comfort.
Length
25 ft 1 in
Dry weight
5,600 lbs
GVWR
8,250 lbs
Sleeps
3
Many factors play into a unit's listing price and what you should pay. This guide provides a ballpark estimate, but it does not factor in your exact scenario or how different listings are equipped.
There may be room for price negotiation.
$42,990 – $53,586
This unit has been on the lot for 91 to 120 days.
This unit is ranked 2 of 4 by asking price in this group.
The listing price on this unit has changed 1 time.
See the complete price timeline and the rest of this unit's pricing insights.
Sumner RV Center
Sumner, WA
Sells faster than 92% of Washington RV dealers
Compared with 55 dealers in Washington
Why We Chose This Creek Side Mountain Series 21RBS We selected this specific model because it is the ultimate compact floorplan for adventurous couples who refuse to compromise on rugged utility. Built right here in the Pacific Northwest on Outdoors RV's signature custom-engineered mountain chassis, the Creek Side 21RBS features a massive U-shaped dinette slide-out that opens up the entire living area. Combined with thermal pane windows, a fully enclosed heated underbelly, and factory-certified four-seasons block foam insulation, this travel trailer is built to withstand everything from freezing mountain passes to hot desert boondocking.
Highlights of this Unit:
Spacious Couples' Layout: Features a deep slide-out with a comfortable U-shaped dinette, a full rear bathroom with excellent storage, and a private front queen bed.
True Mountain Tough Build: Constructed with a rugged, independently certified structural steel frame and heavy-duty suspension designed for rough backcountry roads.
Off-Grid Basecamp Ready: Equipped with high-capacity holding tanks and advanced solar preparation to keep you completely independent far from the crowds.
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.
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