I built my shop myself and a buddy when needed... 36x 40 with 12' walls.. if I put my truck on the
hoist it clears by about 6"... I put in 6" insulation on the roof and 4" on the walls.. I did everything
on the place.. it has heated concrete floors ans LOTS of electrical for my mill,lathe,welders and
more.. I bought most everything for the building company(you get a better price).. I saved
every receipt the whole place was 26K