2026 Forest River Sierra 3800RK

Forest River Sierra 3800RK Fifth Wheel for Sale at Royal RV Center in Middlebury, IN

Enjoy residential comfort, impressive storage, and a spacious four-slide floorplan in the Forest River Sierra 3800RK fifth wheel. Available at Royal RV Center in Middlebury, Indiana, this luxury fifth wheel features a rear kitchen, king-bed master suite, front bathroom with a walk-in closet, dedicated utility room, and comfortable living area. It's an excellent choice for extended trips and RVers who want the conveniences of home wherever they travel.

Forest River Sierra 3800RK Highlights

• Four slide-outs
• Rear residential-style kitchen
• King bed slide-out
• Theater seating
• Hide-a-bed sofa
• 50" flat-screen TV
• Desk with chair
• Front bathroom with dual sinks
• Fiberglass one-piece shower
• Walk-in bathroom closet
• Dedicated utility/laundry room
• Washer/dryer prep
• 12V refrigerator
• Kitchen counter with barstools
• Electric leveling system
• Tankless water heater
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Spacious Four-Slide Floorplan

With four slide-outs, the Sierra 3800RK creates an open residential-style interior with plenty of room to relax, cook, work, and entertain. The thoughtful separation between the kitchen, living area, utility space, bathroom, and bedroom makes this fifth wheel especially appealing for longer trips and extended stays.

Rear Kitchen Made for Cooking

If you enjoy preparing real meals while traveling, you'll appreciate the spacious rear kitchen. Generous counter space gives you room for food preparation and serving, while the three-burner range and 24" oven make it easy to prepare everything from quick breakfasts to full dinners.

A 12V refrigerator provides room for groceries and beverages, while the large counter with barstools creates a convenient place to enjoy breakfast, snacks, or conversation while meals are being prepared.

Comfortable Living and Entertainment

After a day of exploring, settle into the theater seating or stretch out on the hide-a-bed sofa. The sofa also provides sleeping accommodations when guests join your adventures.

A 50" flat-screen TV anchors the entertainment center for relaxing evenings indoors. Need to get some work done while traveling? A dedicated desk with chair gives you a convenient workspace without taking over your dining or kitchen area.

Private King-Bed Master Suite

The master bedroom features a king bed slide-out, giving you a spacious sleeping area and additional room to move around the bedroom. USB charging ports on both sides of the bed keep phones and devices conveniently powered overnight.

A dresser provides dedicated storage for folded clothing, helping you stay organized during extended trips.

Front Bathroom With Walk-In Closet

The impressive front bathroom adds residential-style convenience with dual vanity sinks, making it easier for two people to get ready at the same time.

A fiberglass one-piece shower provides a comfortable place to freshen up, while the spacious walk-in closet includes shelving and hanging rods for organizing clothing, linens, and personal belongings.

Dedicated Laundry and Utility Room

One of the Sierra 3800RK's most useful features is its separate middle utility room. With washer and dryer prep, a dedicated counter, and a hanging rod, you can create your own RV laundry room for extended travel.

Don't need laundry appliances? The space can instead provide valuable additional storage for clothing, supplies, outdoor gear, or other travel essentials.

Built for Comfortable Extended Travel

The Sierra includes Underbelly Armor to help protect vital components from road debris, while the painted two-tone aerodynamic fiberglass front cap is designed with an improved turning radius for easier maneuverability.

An electric leveling system helps simplify campsite setup, allowing you to spend less time getting situated and more time enjoying your destination.

Goodyear radial tires, 7,000-lb. axles, and a cambered powder-coated frame with rust prohibitor construction provide a capable foundation for your travels.

Residential Comfort Throughout

Premium interior touches help make extended stays more enjoyable. You'll find recessed residential lighting, Beachside Sundance Congoleum linoleum, a memory foam mattress, and hidden-hinge soft-close drawers and cabinets.

A 60,000 BTU on-demand tankless water heater provides hot water when you need it, while a TV antenna with booster adds another convenience for life at the campground.

If you're searching for a Forest River Sierra 3800RK fifth wheel for sale in Indiana, Michigan, or Ohio, visit Royal RV Center in Middlebury, IN. With four slides, a spacious rear kitchen, king bedroom, front bathroom with walk-in closet, dedicated laundry room, and residential living amenities, the Sierra 3800RK is built for RVers who want more comfort and functionality during extended adventures.

Visit Royal RV Center in Middlebury, IN, proudly serving Indiana, Michigan, Ohio, and beyond.

• Front Bath
• Rear Kitchen