Originally Posted by monoshock
Wasn't the question about a small trailer? Like a single axle. Or did I miss something.
You didn't miss anything. I didn't specify. Same rules of thumb should apply to most single axle trailers. I'm working with a 5x10, and 6x12.
Trying to save some gas rather than pull a 6x16 double axle everywhere. From what I can see so far the 5x10 saves about 1.37 gallons per day on one route vs the 6x16 (about $5 aday). And that was running A/C with the little trailer. Also made parking WAY easier in the city, again saving time, aggravation and making the day a little easier.