dont want to change the subject, but just to interject: are you going to build it yourself, from lumber, have someone else build it, or get some form of kit?
I put up a garden shed several years ago, and I could buy one pre assembled, buy a kit from home depot or Lowes, and for what those would have cost me I was able to build one from lumber twice as big for the same cost, built with FAR better materials, and put together much better. It took me a month of weekends and long evenings, but it was well worth it.
The deciding factor for me is 200 sq feet or less is a utility shed and not a "building". So mine is 12 x 16". Putting up a garage would require more permits and inspections and rules.
I can get my bike in there for the winter, but during riding season the bike is stored in the garage (driveway access).
One other thing I learned from do-it-yourself: If the roof angle is 20° or less things will stay on the roof without sliding off (including your self). IF the roof angle is 30° or more then NOTHING will stay on the roof without being nailed or tied down, the plywood, the shingles, your tools, nails... you have to have cross supports as you work, and you have to hold everything in place.
The difference means doing the whole roof from rafters to finished shingles in about a day, to taking about a week.
Last edited by KCW; 05-14-2017 at 01:00 PM.