I am pondering a new build and would appreciate some advice... We just got a Tesla Model Y and I'm thinking about a trailer to go with it. In this post I'm kind of thinking it through out loud and would appreciate inputs.
I've done 2x cargo trailer conversions previously so I'm very familiar with those, but haven't done the squaredrop build (nor have I lived with one). Right now I am considering a few options:
- 5x12 Cargo Trailer Conversion
- 5' Wide Nicer Squaredrop
- Quick & Dirty 4x8 Squaredrop
The family is currently me + spouse + three kids. Obviously a small rig is not going to fit all of us, but it would give DW and I place to sleep (climate controlled). I'm also somewhat interested in cargo space to lug all the camping stuff for a car camping/tent trip, or a basecamp for backpacking. While we do have a larger tow vehicle (and a 7x24 foot cargo conversion to go with it) which is great for larger/longer trips, it'd be nice to have a more agile "run about" with the Y for quick impromptu weekend trips. Mostly stuff within a 2 hour radius -- hitch and go to the nearby national park or state forest kind of deal. We also do some ski bumming in the winter, which is where a hard sided heated trailer really shines over a tent camp situation. If we had a small rig that was cost effective to tow I could see either DW or I hitching and going solo for a powder day a few times each winter.
The ski place we'd be likely to go to would be a maximum of 100 miles from the nearest supercharger.
6x12 Cargo Trailer Conversion -- Reference Option
- RANGE: 1 star. Cuts range to less than 45% of nominal, less than 140 miles. In the winter cut that another third.
We also have a 6x12 cargo conversion I was really leaning towards selling. Its built out moderately nicely but with the Y was really hoping to go smaller for better mileage. This is a steel trailer that's pretty heavy and I had it built extra tall for lots of headroom; behind our big diesel it tows like a dream but behind the Y it kills the mileage. The 7x24 is better for anything involving the whole family.
5x12 Cargo Trailer Conversion
- RANGE: 2 stars. I estimate it at as cutting the range to about 50% of normal, 150 miles between charging best case. In the winter more like 100 miles. Right on the edge of making it to the ski place in winter.
- VERSATILITY: 2-5 stars. If I put a galley in the back it will really restrict cargo hauling capability, although a pass through is possible. Without a galley, you can pop that door open and load whatever you want. All the kids tent gear would pop right in.
- HEADROOM: 4'10" to 5'4" headroom. I could get it built up to 6' usable headroom, but the taller it is the worse the range impacts get due to the aerodynamics. 5'4" is enough to stand (somewhat hunched over)
- LAYOUT/COMFORT: 4+ stars. With a 5x12, I can put some cabinets up front, a full size mattress in the back and maybe even some storage underneath a bed frame. When travelling solo there's space to put a folding camp chair inside in front of the bed to watch TV or read on a cold night (4'6" is the magic height for me to sit in a chair inside). For outside, an awning mounted on this is high enough to be usable in camp (i.e. you can walk under it without drama). I can definitely get a roof rack, roof water tank, and roof solar (although all that on the roof hurts mileage too).
- COST: An aluminum shell with windows, insulation, walls, etc about 80% finished would probably run about $7-10K. I'm looking at something like the Lightning LTF512SA.
- EFFORT: Pretty low. In the past I've done my own insulating, walls, paint, etc. In this one I'd probably just have the factory insulate and do the walls and maybe ceiling. If I feel really up to it I might do my own drop ceiling so that I can fit in more insulation and run my own wiring.
I could go even smaller, but most of the mileage hit is from the aerodynamics which is driven by the front and back of the trailer more than the length. The slight added weight from a few more feet is nothing compared to the gains in comfort and versatility IMO.
5'x?? Squaredrop
- RANGE: 3 stars. I estimate this at as cutting the range to about 55-60% of nominal, 165 miles between charging best case. In the winter cut that another third (maybe 110ish).
- HEADROOM: Depending on how I build it, probably about 4-5' headroom. The Y is 64" tall, so 4' headroom on top of an 18" trailer bed would pretty much keep it level with the car which is best for aerodynamics. I could go taller to, but in that case might as well go with a cargo trailer conversion, and it eliminates the ability to use easily sourced 4x?? construction materials.
- VERSATILITY: 3 stars. Depends on galley design, may be able to put some stuff through a passthrough, but the mattress will probably be right on the floor so there's no under bed storage space to use. I could potentially get a roof rack on there to get more usable space for water, solar, and a cargo bag at the cost of aerodynamics.
- LAYOUT/COMFORT: 2+ stars. We could fit a full mattress for two adults. It'd be tight but usable and 4' of headroom is not enough for sitting in a normal chain inside on a winter trip.
- COST: I'd have to price it all out, but probably a few grand. A basic 5x12 utility trailer is right around $1K these days. If I buy a COTS option like a Hiker, they're like $12K outfitted these days.
- EFFORT: High. This would require building the whole thing. Not insurmountable but it'd be a project.
4'x?? Squaredrop
- RANGE: 4 stars. I estimate this at as cutting the range to about 65% of nominal, 195 miles between charging best case. In the winter cut that another third (maybe 130ish).
- HEADROOM: Same as the 5' wide squaredrop.
- VERSATILITY: 1 stars. Really only able to sleep one. If I just skip the rear galley entirely I could buy back some cargo loading versatility (although this makes me wonder why not just use a 4x8 cargo trailer as a conversion base to save time?).
- LAYOUT/COMFORT: 1 star. We could fit a full mattress for two adults. It'd be tight and 4' of headroom is not enough for sitting in a normal chain inside on a winter trip.
- COST: Definitely the cheapest. I'd have to price it out but this would be pretty straightforward.
- EFFORT: Moderate. I think I could slap together a pretty basic 4x8 shell pretty quickly. I could also just get a 4x8 cargo trailer and do a quick conversion.