New 2026 Grand Design Foundation 42GD
Colton, CAMike Thompson's RV
Questions about this 2026 Grand Design Foundation 42GD
What does it cost?
Mike Thompson's RV lists it at $89,994.
Is it new or used?
New. It is a 2026 model.
Is it still for sale?
Mike Thompson's RV’s website listed it for sale on October 31, 2026. RV Shift checks dealers’ websites about once a day, so ask the dealer to be sure.
Where is it?
At Mike Thompson's RV in Colton, CA. See all 38 RVs Mike Thompson's RV lists on RV Shift.
How many people does it sleep?
The dealer lists it as sleeping 6.
How long is it?
48' 6", with 2 slide-outs, as the dealer lists it.
How much does it weigh?
The dealer lists a dry weight (empty) of 14,814 lb, a GVWR (the most it is allowed to weigh loaded) of 18,000 lb and a hitch weight of 2,402 lb.
What does it take to tow it?
RV Finder’s estimate: it needs a vehicle rated to tow about 16,100 lb. That is its 14,814 lb dry weight plus 1,200 lb for water and gear, rounded up to the next 100 lb. RV Finder shows whether it is within your vehicle’s published rating, from the maker’s own towing guide, and checks tongue weight and payload too. Confirm your numbers in your owner’s manual and on the sticker in the driver’s door jamb. Check it in RV Finder
How do I ask the dealer about it?
Use the Check availability form on this page. Your message comes to RV Shift and we pass it to Mike Thompson's RV.
About this RV
Grand Design Foundation destination trailer 42GD highlights: • Lofted Deck • Large Kitchen Island • King Bed Slide Out • Two Awnings • Loft with Queen-Size Sleeping Pad You'll fall in love with this spacious destination trailer that can sleep six each night! With dual entry doors, you can enter in through the rear deck that includes a lower level for gathering, and an observation deck to take in the stars! The other entry door leads into the combined kitchen and living room that includes a spacious kitchen island with a dishwasher, a pull-out pantry, an 18.6 cu. ft. refrigerator and an L-shaped sofa with a trundle bed. There is also an entertainment wall with smart storage and sliding doors that go out to the rear deck. A set of stairs leads to the loft with a queen-size sleeping pad, ample storage space, plus a table with a foot nook so you can put the table away when not in use. Back downstairs, a full bath will let you freshen up each day and a front private bedroom with a king bed slide is sure to bring comfort. There is also storage space for your things, a telescoping TV, plus washer and dryer prep if you plan to add these appliances!
Specifications as listed by the dealer
- Type
- Destination trailer
- Condition
- New
- Year
- 2026
- Make
- Grand Design
- Model
- Foundation 42GD
- Stock number
- FO26001
- VIN
- 573TF4935TAA23476
- Sleeps
- 6
- Slides
- 2
- Length
- 48 ft 6 in
- Ext Width
- 8 ft 5 in
- Hitch Weight
- 2,402 lbs
- GVWR
- 18,000 lbs
- Dry Weight
- 14,814 lbs
- Fresh Water Capacity
- 83 gals
- Grey Water Capacity
- 106 gals
- Black Water Capacity
- 53 gals
- Furnace BTU
- 35,000 btu
- Available Beds
- King
- Refrigerator Type
- GE
- Refrigerator Size
- 18.6 cu ft
- Convection Cooking
- Yes
- Cooktop Burners
- 4
- Number of Awnings
- 2
- Water Heater Type
- Tankless
- AC BTU
- 45,000 btu
- Awning Info
- 14' and 20'
- Axle Count
- 3
- Shower Type
- Standard
Features
- One Piece 5/8” Floor Decking (25 year parts warranty)
- Aluminum Framing w/ Temperature Controlled Fiberglass Laminated Wall
- Composite Exterior Decking w/ Waterproof Woven Vinyl Flooring (2500lb Weight Rating)
- 50” X 80” Automotive Grade Front Window
- Painted and Fiberglass Molded Front Cap w/ Integrated Lighting
- 101” Wide Body Frame
- 3” Aluminum Flooring with 12”-16” on Center Aluminum Framing
- 3-Stage Water Filtration System
- Brass Plumbing Fittings
- Shut Off Valves Under Every Water Fixture
- Quad Seal Protection
- Electronic Tank Heating Pads
- Hardwood Drawer Boxes w/ Undermount Soft Close Drawer Guides
- 62K Tankless Water Heater
- Powder-Coated Steel Exterior Hand Railing w/ Integrated Lighting
- Exterior Convenience Center
- Pull Out Kitchen Pantry w/ Adjustable Shelves and built in Paper Towel Holder and Spice Rack
- Pull Out Trash Can Storage
- Kitchen Electronics Drawer w/ Dedicated Outlet
- Installed Shelf Liner in Kitchen Cabinets and Drawers
- Solid Surface Countertops in Kitchen and Bathroom
- Residential GE Dish Washer w/ Sanitation Cycle
- GE Kitchen Suite of Appliances (18.6 cu. ft refer, OTR Convection Microwave, 4 Burner Range and Oven)
- Dado Cut Hardwood Drawer Boxes w/ Undermount Soft Close Drawer Guides
- Striking Accent Entertainment Wall w/ Integrated Storage and Dyson Prep
- Direct View Entertainment in Living Room with L-Sofa Trundle Bed
- Motorized Shades in Living Room and Kitchen Windows
- Living Room Fan-Delier w/ Adjustable Lighting
- Starlink Prep
- Square Glass Entry Door w/ Integrated Shade
- Bonded Square Glass Windows
- Standard King Bed (76” x 80”) w/ Built In Floating Storage
- Living Room and Bedroom Fireplace
- Heated and Enclosed Underbelly w/ Thermostatically Controlled 12V Heated Tanks
- Standard (3) x 15K Ducted A/C w/ Included Heat Pump
- 35K Furnace
- Stackable Washer and Dryer Prep (w/ option to add installed stackable washer and dryer) Optional Installed Slide Out Toppers
Listing and photos: Mike Thompson's RV. Details come from the dealership and can change; confirm them before you buy.