Same size as mine. Works good! Especially if you need the 5th sled. That's the only time I have needed to "finesse" a sled around in there.
My fenders inside are not as tall as yours, so I was able to run the ski guides over the fenders.
I'll give some other specs I added from factory, and stuff I added. So I hope it will give you some fun ideas!
I added these additional factory options:
-Front ramp door: Roadside location (driver)
-Move standard side door to Roadside wall (driver)
-32 Degree Down Axles with Hypo Brackets, wheel well boxes 6” or less.
Run angle from floor to wheel well box for short ramp overs.
-Screwless exterior skin
-One 30” x 15” horizontal window: Curbside, centered above fender,
-Backup LED lights
-Stainless hasps
-side vents
All work was completed by myself and father. I work in electrical engineering in HVAC, so it was a fun project.
I made the bench mounted in front V. Cabinet frame built around the side. Bench can flip open. I can store extra tools, parts down there. This encloses the main electrical components and batteries. The side cabinet encloses the furnace, ducting, electrical switches, and other electrical.
I run a Atwood 35K BTU furnace. Trailer is fully insulated(floor, side, ceiling).
I made a boot / glove dryer with valve & end caps. It will fit 8 boots and 8 gloves.
The helmet cabinet is fully heated also.
The floor drain w/ heat tape is pretty crucial. It fits about 6 gallons and I can access the drain outside. Located in front V.
I also have a fan to push that heated air around. Pretty big difference with and without it(10F cooler on the floor without it).
I have 2 Duracell Deep Cycle Golf Cart Batteries 235AH. I use a 30A inlet with a 55Amp power center/converter/charger.
I also have a 3000W Inverter DC to AC, Pure sine wave(works better then modified sine).
I have 3 qty 100 Watt Solar Panels with a MPPT 30A Solar Charge Controller.
I have found in January this is not enough to keep up with the demand. Too low of sun, and cloudy days. Creating a 12V actuator for the panels is next on my list.
My furnace is controlled by:
-All On Switch
-Thermostat(programmable)
-Timer
-Remote/Alarm
I have a main shutoff switch by man door - One switch turns on/off: stereo, furnace, interior lights
I use the LCD 2 way alarm module for additional remote control of my front led lights, rear led lights, and furnace. The unit also has a digital temp readout on the LCD remote so I can monitor my interior temps if I need to turn furnace on from hotel/house. With the temp check, it verifies the furnace lit correctly.
I wired and mounted 3 qty SAE connectors on upper panels. These allow me to connect battery charging cables to the sled batteries. Allows them to trickle charge during the summer.
Thermostat requires 2 AA batteries. I hardwired them to a 3VDC source so I never have to replace batteries. Since this has a LCD, it only works above 32F. I use the timer to turn it on in those cases, and then set the temp once the stat is warmed up.
I have a +12VDC Actuator and fan for my vent. I have it hooked up to rh stat so it can open with sleds inside due to condensation when furnace is running. I also have it hooked up to a timer, so I will turn it on once I leave for riding for the day to clear the exhaust out. I wanted to have it open automatically when the sleds start up, but the CO detector(relay) was too slow, and the smoke detector(relay) didn't work below 32F. Timer it is.
You can never have enough hangers! I have a good amount spread out on the walls. Keeps everything off the floor.