2026 Grand Design Imagine AIM 15RBA Review
Small trailers are a way of life for many travelers and this one, a Grand Design Imagine AIM 15RB, offers a good amount of functionality and comfort to the equation. Even with no slide, the interior space is decent, the kitchen is usable, and you get a lot of value.
At a Glance: 2026 Grand Design Imagine AIM 15RBA
The Grand Design Imagine AIM 15RBA earned a 7.5 out of 10 points for overall quality, function, and features. It was particularly strong in cold weather camping, not what you might expect from a simpler trailer. Overall, this is a nice design with good features.
2026 GRAND DESIGN IMAGINE AIM 15RBA
- Easy towing yet usable interior
- Winter-ready water system
- Off-brand rubber and optional TPMS
- Rough finishes
- Weekend warriors who want a smaller, more nimble travel trailer that doesn’t feel like a major sacrifice
- Those who have a smaller tow vehicle and still want to enjoy the RV life
Check the Specs
- Sleeping capacity: 3
- Hitch weight: 392 pounds
- UVW: 3,547 pounds
- CCC: 1,248 pounds
- Exterior length: 19 feet 8 inches
- Exterior height 10 feet 2 inches
- Exterior width: 8 feet
- Fresh/Gray/Black: 37/45/37 gallons
- Propane: 2 x 20 pounds
- Awning: 12 feet
- MSRP: $32,199
Features We Love
- Spacious bathroom
- Good interior storage compartments
- Convenient control system with smart device connectivity
Benefits
- Easy towing yet usable interior. Despite the small size of this trailer the interior features a couch and a dinette and isn’t a bad space at all.
- Winter-ready water system. Grand Design has done a good job of making their products winter-ready including this one with an enclosed and heated underbelly and gate valves.
Challenges
- Off-brand rubber and optional TPMS. This trailer uses a less commonly known brand of tire – likely ones you’ve heard disparaging remarks about in RV forums. A tire pressure monitoring system is an option – though I would consider it essential, especially with these tires on a single-axle trailer.
- Rough finishes. The handles on the cabinets and drawers have a sharp edge to them which was uncomfortable to me.
Best For
- Weekend warriors who want a smaller, more nimble travel trailer that doesn’t feel like a major sacrifice
- Those who have a smaller tow vehicle and still want to enjoy the RV life
Key Areas We Evaluate for RV Buyers
Sleeping Space: 7/10
In order to offer a usable interior in a trailer of this diminutive size, Grand Design has employed a Murphy-style bed. Essentially you fold the couch at the front, drop down a platform and you have your bed.
Many may dislike the idea of a Murphy bed but they’re actually not inconvenient, and with something like the RV Superbag, they’re not a challenge to make, either.
I do like how there are cubbies on either side of the bed, along with household and USB power outlets, so you have a spot for your noisy toys and there are nightstands as well. Overhead reading lights finish out the space well.
One thing to note: Most RVers replace their mattresses and their shower heads almost immediately but finding a mattress that will accommodate the fold required for this Murphy bed design to work will take a bit of sleuthing. Owners might consider one of the Froli mattress bases instead.
The dinette, too, can turn into a bed although it will be tight quarters inside this RV for more than two people.
There is a small trash can in a metal holder at the end of the kitchen cabinet but I fear this will be kicked in the middle of the night by the person sleeping on the road side of the bed. I appreciate that there’s a trash can but the metal holder may just find itself thrown out the door of the trailer after a drowsy camper kicks it more than once.
Bathroom: 8/10
The bathroom is surprisingly spacious in this trailer, with decent counter and storage space. There’s a rectangular shower with a Nautilus-style shower door, also a plus.
There’s also plenty of space around the toilet but, unfortunately, the toilet is a plastic model.
Living Area: 7/10
The whole living area in this trailer really is the kitchen and bedroom, but it’s not bad.
I like the Lippert-sourced control panel for this trailer. It can be operated by touching the buttons on the panel, but can also be used with a phone or tablet. This system can show the tank levels on the phone or tablet and you can dim interior lighting as well.
The panel stays dark when you’re not using it, but get near the front of this panel and it illuminates to display the control values and state of the holding tanks. In the case of this trailer, that panel is right by the bed so I wonder if someone rustling around in the bed will cause the lights to come on.
There’s a couch at the front of this trailer when the bed isn’t down that has a center armrest and is a decent enough place to sit. There is also a TV at the far wall of the trailer that the couch has a direct line of sight to.
Also here is a traditional dinette which, of course, drops down into a bed if someone wants to stay for a while.
Kitchen: 7/10
I had a trailer with a similar floorplan to this and found that the kitchen counter space was pretty lousy. That’s not true here and while this isn’t some major fifth wheel with oodles of counter space, there is still a decent amount of space to get things done.
I like the inline two-burner stove and convection air fryer microwave for food prep. There’s a small square-bowl sink with a pull-out faucet – also a plus. The 12-volt refrigerator is smaller than the one in a lot of RVs; however, at about 6 cubic feet.
Four-Season Capabilities: 8/10
I was very surprised to learn that this trailer had the holding tanks in a heated enclosure, something you generally see on much larger rigs. The gate valves, too, are within the heated enclosure. All of that means that you’ll be able to camp in colder conditions with this trailer.
Storage Space: 7/10
One of the nifty things included in the design of this trailer is a shoe cubby right at the entry door. Little things like this can really play out well for campers using this trailer. There are a number of these attention-to-detail features including the fact that the baggage compartment doors have a magnet hold-back – common on pricier trailers but not so much on more affordable models.
There is a decent amount of storage around the bed including closets and a drawer on either side but also a couple of drawers under the couch.
In the kitchen there is a cabinet with drawers inside which is nice – many very small trailers have no drawers whatsoever and this one has several. There’s also good cabinet space over the kitchen.
Since this has a Murphy bed, some of the pass-through space is consumed by that bed system. There is a reasonable amount of pass-through storage on the outside but it’s not huge.
Chassis / Suspension: 7/10
Unfortunately this trailer features a non-mainstream brand of tires on its single-axle design. There is also no tire pressure monitoring system as standard – it is an available option that I can’t recommend enough to prospective buyers.
The chassis on this trailer is built by BAL, a competitor to Lippert, and features a build using huck bolts, which are reportedly stronger than welds on a chassis.
The suspension here is a simple leaf spring design which tends to transmit more vibration and harshness into the body of the trailer but it’s pretty common among entry-level offerings.
Off-Grid / Sustainability: 8/10
There is a 200-watt solar panel on the roof of this trailer managed by a 30-amp charge controller which is large enough to support additional panels. The single solar panel might compensate for the consumption of the fridge in ideal conditions but you’ll want more panels if you plan to spend time off the grid without a generator.
Fortunately there are also roof-mounted quick connect plugs to help with those additional panels, which is a nice touch.
The holding tanks are larger than you might expect given the physical size of this trailer, with 37 gallons of fresh water and 48 gallons of gray holding tank capacity. Nice.
Build Quality: 8/10
I like a lot of the build decisions Grand Design made with this trailer. The sidewalls are a laminated build with fiberglass exteriors. The nose cap is an aluminum sheet. It’s not typical but it’s not a bad idea at all.
Value: 8/10
When I bought this same floorplan (from a different company) in 2016 I was out the door under $20,000. This has an MSRP of $32,199 and while that’s not a lot in today’s market, it reflects how much trailers have gone up in price.
There are a number of details that are higher value on this trailer like magnetic hold backs for baggage doors and a shoe cubby. While these might seem like small details, these are the kinds of things that prove useful over time. So I think there’s value here, especially with Grand Design’s improved warranty coverage for all their models.
Closing Notes on the Grand Design Imagine AIM 15RBA
The first new trailer I ever bought was this same floorplan and we towed it all over the place including over the entirety of Route 66. That trailer racked up a lot of miles and some great adventures so this floorplan holds a smile in my soul.
The way Grand Design did their variation of this floorplan is even better than that trailer I had – they’ve incorporated a lot of little details that make a difference here and I think will be positive points for owners.
A Note on the RV Trader Review Process
RV Trader asked RV shoppers what was most important to them in their RV buying process. Potential buyers — like you — helped us to identify a list of six key areas that camping and travel enthusiasts always look at when they’re searching for the perfect RV: sleeping space, bathroom, living area, four-season capabilities, and storage space.
The RV Trader team then got to work providing you with honest and unbiased evaluations. If you’re wondering, that’s where I came in. As an RV expert and enthusiast, I provide an honest look at RVs from an RV industry insider perspective.
Make Your Move
Start shopping for the year, make, and model. Find your Imagine AIM 15RBA.
Marketplace Inventory
Tony Barthel
You might also like
