I constructed a stick build 30 x 35 x 11 detached garage. I used 5/8 sanded plywood for all the interior walls and lid mainly because I didn't want to search for a stud all the time when mounting something.
I am going to stain the walls a light oak color and paint the lid solid semi gloss...
I live not too far from here and thought this was a very cool idea for all your gear heads out there.
http://www.theoaklandpress.com/general-news/20141128/car-condos-at-pontiacs-m1-concourse-development-selling-quickly