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Fifth Wheel · Premium-Mainstream · Single-Source Profile

2026 Grand Design Reflection320MKS

A mid-kitchen full-size fifth wheel with an outside kitchen and a built-in desk — a work-and-cook couples’ layout with the largest gray tank in the line and nearly 2,900 pounds of payload.

Tow-Critical Data — as built, MY2026

11,100lb
Dry Weight
13,995lb
GVWR
2,200lb
Pin Weight
34ft
Length
Sleeps 4 Dual-axle Fifth Wheel · Mid-kitchen + outside kitchen, desk Built by · Grand Design RV Construction · Laminated aluminum · gel-coat Starting MSRP · $98,017

01 What makes it unique

The Reflection 320MKS centers the kitchen in the middle of the coach and adds an outside kitchen and a built-in desk — a layout for couples who cook seriously and work from the road. The mid galley separates the living and sleeping ends, the outdoor kitchen moves cooking into the open, and the desk gives a dedicated work surface. The Reflection residential build is fully present: gel-coat fiberglass sidewalls, laminated aluminum framing, a one-piece TPO roof and a 16 cubic-foot 12-volt refrigerator.

It rides on a tandem axle with MORryde rubberized suspension and Goodyear Endurance tires, with a 13,995-pound GVWR on an 11,100-pound dry weight — leaving nearly 2,900 pounds of payload — and a 2,200-pound dry pin weight that wants a three-quarter-ton. It carries the largest gray tank in the line at 94 gallons alongside a 74-gallon fresh, supporting long off-hookup stays, and is framed for a second air conditioner.

It sleeps four in a work-and-cook couples’ layout, at an MSRP near $98,000. For buyers who want a serious kitchen, an outdoor galley and a workspace in a full-size fifth wheel — with the tank capacity for extended boondocking — the mid-kitchen 320MKS is the most kitchen-focused full-size Reflection.

02 Full specifications

Dimensions

Exterior length
34' 9"
Exterior width
8' 0"
Exterior height
12' 6"

Weights

Dry / unit base weight
11,100 lbs
GVWR (max loaded)
13,995 lbs
Net cargo / payload
2,895 lbs
Dry pin weight
2,200 lbs

Capacities

Fresh water
74 gal
Grey water
94 gal
Black water
47 gal
Refrigerator
16 cu ft

Construction

Walls
Laminated aluminum-framed · gel-coat fiberglass
Roof
One-piece TPO · walk-on decking
Front cap
Painted fiberglass · Max Turn aero
Insulation
Side/rear R-9 · floor R-30* · roof R-40*

Running gear

Axles
2 (tandem)
Hitch
Fifth-wheel (in-bed)
Suspension
MORryde rubberized equalizer
Tires
Goodyear Endurance · aluminum wheels

Galley & bath

Cooktop
3-burner recessed
Refrigerator
16 cu ft
A/C
15K BTU ducted A/C
Water heater
Tankless on-demand · gas

Sleeping & layout

Sleeps
4
Slides
3
Hitch type
Fifth-wheel (in-bed)
Primary bed
Front queen/king

03 The Reflection floorplan family

Grand Design's Reflection is the brand's premium-mainstream towable family, and it spans four sub-lines across both tow types. The full-size Reflection fifth wheel is the heart of the range — a residential half-ton-to-three-quarter-ton coach with a 16 cubic-foot refrigerator and laminated aluminum construction. The Reflection travel trailer (the "...TS" plans) brings that same finish to a genuine bumper-pull, for buyers who want Reflection quality without an in-bed hitch. The Reflection 150 Series is the lightest fifth wheel — CURT Touring Coil suspension, standard solar and a 90-degree turning pin box for short-bed half-tons — and the Reflection 100 Series is the accessible short-bed fifth-wheel entry. The 320MKS on this page is highlighted; each other profiled plan links to its own page. The full Reflection catalogue runs to dozens of floorplans across all four; the highest-demand layouts are detailed here and the rest are catalogued on the line hub.

FloorplanSub-lineTypeNominalSleepsNotable
322FKTSReflection TTTT36 ft6Front-kitchen couples, rear bath, dual slide
317RSTSReflection TTTT35 ft4Rear-living dual-slide couples trailer
312BHTSReflection TTTT37 ft6Private bunkhouse + outside kitchen, triple slide
345RLTSReflection TTTT39 ft6Rear-living tri-slide, theater seating
342BHTSReflection TTTT38 ft7New 2026: rear private bunkhouse + outside kitchen, triple slide
28RLReflection 1005W31 ft4Half-ton rear-living, dual slide
27BHReflection 1005W32 ft10Half-ton bunkhouse, sleeps ten
32BHReflection 1005W36 ft7Bunkhouse flagship of the 100 Series
270BNReflection 1505W30 ft2Single-slide rear bunk, lightest range
295RLReflection 1505W33 ft4Rear-living dual-slide half-ton
303RLSReflection FW5W33 ft4Entry full-size rear-living, tri-slide
337RLSReflection FW5W36 ft4Rear-living couples full-size
320MKSReflection FW5W35 ft4Mid-kitchen + outside kitchen, desk
311BHSReflection FW5W37 ft6Private bunkhouse, quad slide
367BHSReflection FW5W41 ft8Bunk + loft full-timer flagship
324MBSReflection FW5W37 ft6Mid-bunk two-bedroom, tri-slide
360FLSReflection FW5W39 ft6Front-living flagship, five slides
362TBSReflection FW5W40 ft8Two-bedroom rear bath, sleeps eight
250MLReflection 1505W30 ft3Compact mid-living, single slide
260RDReflection 1505W30 ft4Lightest 5W, rear-living, big payload
298BHReflection 1505W35 ft8Half-ton bunkhouse, sleeps eight
22RKReflection 1005W27 ft4Smallest/cheapest 5W, biggest payload
24RLReflection 1005W30 ft4Rear-living, lightest pin, dual A/C

The full-size Reflection fifth wheel is the volume heart of the line, sitting below the luxury Solitude and new Influence fifth wheels and above the lighter 150 and 100 Series. Pin weights are factory dry figures and climb with cargo — even a half-ton-rated coach needs its loaded pin checked against the truck's payload and rear-axle rating. Additional Reflection fifth-wheel floorplans are catalogued on the line hub.

04 What owners & reviewers report

Mid-kitchen + outside kitchen

A center galley plus an outdoor kitchen makes it the most cooking-focused full-size Reflection.

Largest gray tank in the line

94 gallons of gray alongside a 74-gallon fresh stretches long off-hookup stays.

Built-in desk

A dedicated work surface suits couples working from the road — uncommon in this class.

Wants a 3/4-ton

A 2,200-lb dry pin and 13,995-lb GVWR are beyond half-ton territory — weigh loaded and check truck ratings.

SOURCING — ownership notes to be expanded with cited threads from owner communities & forums per the data plan

05 How it compares

↔ Cross-shop
Reflection 337RLS

The rear-living layout in the same class — living-room emphasis instead of a center kitchen.

↑ Step up
Reflection 311BHS

A quad-slide bunkhouse — the family layout above this couples’ kitchen coach.

↔ Cross-shop
Grand Design Solitude

Grand Design’s luxury extended-stay fifth wheel one tier up — more space and a higher price.