I built a 50x70 with a 14x24 door, holds the camper or the 40' horse trailer hooked up to truck, both inside and out of elements!
Wired garage with plug in.
Normal procedure is we come home and pull up to door of house, all used clothes come out into washer in house, perishible food gets emptied, camper gets washed and backed into shed and vacuumned out, until next time, over the week we load it and get it ready, ac is on and fridge is on, truck gets hooked up a couple days before, then day we leave, unplug and pull out shut door and off we go.
Best money ever spent is getting out of sun and rain when not using. 30 days in the sun is about similer to 10 years inside in my opinion!
Wife gets mad because I WON'T leave it outside unless we are camping, shed is big enough to put awining and slide out out, why leave it outside!
2012 Keystone Laredo 275SBH
2015 Chevrolet Silverado Double Cab