That's true for aluminum tanks, but it's not true for Carbon Fiber tanks, which SpaceX is rumored to be considering for the BFR. Having a larger diameter first stage has a bunch of advantages: It would make the rocket shorter, which would make it easier to work with.
Bigger Is Better. Garages are used as workshops, parking spots, laundry rooms and for storing all those things you wish you would have never bought. With so many uses, it's important to allow plenty of space. Two-car garages are typically at least 18 feet wide by 22 feet deep. This allows room for two 9-foot garage doors and for cars to pull in completely. Of course, if you don't plan on parking a car in your garage, you may opt for a smaller structure.
The next time you pick up a home plan book or visit a website that sells home and garage plans, pay more attention to the garage size, especially if itâs a two car garage plan. When I did a random, online search for home plans from 2100 to 2499 square feet I discovered 40 of 50 were 2 car garage plans. My last report on garage size was based on the U.S. Census Bureau Characteristics of New Housing for 2010.