Forest RiverSandpiper

Sandpiper is Forest River's premium-mainstream full-size fifth wheel — a full-size, residential-style coach pitched below the company's own luxury lines. It sits a clear tier below Cedar Creek and Riverstone, in mainstream full-size fifth-wheel territory aimed at families and couples with a properly rated three-quarter-ton or larger truck. Where a Cedar Creek or Riverstone cross-shops the luxury fifth wheels, Sandpiper is pitched against the volume mainstream-luxury lines — Grand Design's Reflection and Keystone's Cougar — offering full-size layouts and residential touches at a notably lower price.

The pitch is full-size space and standard equipment that reads above the price. Every Sandpiper is built on a cambered powder-coated frame with a rust prohibitor and underbelly armor, a welded aluminum-framed vacuum-bonded laminated superstructure, R-10 2-inch laminated sidewalls and a full walk-on roof on 3/8-inch decking with 5-inch truss rafters. Running gear is a single tandem 7,000-pound axle rating — the same on every plan, with no light/heavy split — on Goodyear Radial tires with anti-lock brakes, Lippert auto-adjust brakes, upgraded aluminum rims and TPMS, with an automatic electric level-up system and power front jacks. Inside, a 16-cubic-foot 12-volt refrigerator, a 3-burner gas range with a 24-inch oven, a 30-inch over-the-range microwave, solid-surface counters, a stainless package, an 84-inch ceiling, a memory-foam mattress and a tri-fold hide-a-bed sofa come standard.

The systems package is generous for the tier. Dual 15,000-BTU air conditioners ship standard — prepped for a third — rather than a single unit with an optional second, alongside a 60,000-BTU on-demand tankless water heater, a 40,000-BTU floor-ducted furnace, 12-volt heated holding tanks, a Rich Solar 200-watt roof panel with a controller and battery, and inverter prep. A 50-inch smart television, a JBL Aura Cube media center and washer/dryer prep are standard on every plan, with the washer and dryer included outright on the 3800RK and 3900HBLR. For 2026 the retail fifth-wheel line spans seven floorplans from family bunkhouses to front- and rear-living couples' coaches, and all seven are profiled in depth below. Two further plans, the 3370RLS and 3550BH, are Dealer Stock Only and are listed but not profiled. Sandpiper is badge-engineered as the Sierra, built side-by-side on the same assembly line with only the decals different.

All seven 2026 retail fifth-wheel floorplans are profiled in full with Forest River factory-verified specifications, covering the entire current retail line: a front bunkhouse with two-and-a-half baths, a quad-bunk family flagship with an outside kitchen, the new rear-living flagship with a mobile workstation, a middle bunkhouse, a two-full-bath coach, a front-living entertainer and a rear-kitchen couple's plan.

Two further 2026 Sandpiper fifth wheels are listed by Forest River as Dealer Stock Only — built to dealer order rather than catalogued for general retail. They are not profiled in depth here, but their factory-published weights are listed for reference. Both publish GVWR per plan with UVW plus CCC equal to GVWR exactly, the same as the retail line.

The Sandpiper line sorts cleanly by who is traveling and where the living space goes. For families, three plans carry dedicated kids' space: the 3710HBFB puts a private bunkhouse up front with two-and-a-half baths, the 3844QUAD adds a dedicated quad-bunk room with five slides, two entry doors and an outside kitchen (and is the heaviest coach in the line), and the 4003MB tucks a middle bunkhouse with a loft between a front master and a rear living area — sleeping eight on the line's lowest pin, the easiest in the line to match to a truck.

For couples, the choice is where the great room goes. The 3900HBLR — the new-for-2026 flagship — puts a rear living great room with a fireplace, a hidden and butler pantry, the line's biggest tanks, its only 65-inch television and a standard mobile workstation at the back, while the 3800RK puts a residential rear kitchen across the back wall with theater seating; both include the washer and dryer. The 3990FL is the entertainer: a raised front living room with dual opposing sofas, theater seating and a fireplace, a rear private king bedroom and a hidden loft-and-a-half — the lightest coach in the line with its biggest payload, though it carries the highest pin. For a multi-generation crowd, the 4002FB is the answer: two full bathrooms, two private bedrooms and a double-bunk loft, with a rear-entry guest bath that keeps the master suite private.

Across all of them the build is the same: the cambered powder-coated frame, the R-10 2-inch laminated sidewalls, the single tandem 7,000-pound axle rating, dual 15,000-BTU air conditioners prepped for a third, the 16-cubic-foot 12-volt refrigerator, the 60,000-BTU tankless water heater, the 84-inch ceiling and the standard 200-watt solar. The decision is layout, weight and pin, not equipment level.