Cannot speak for NH, but here in North Florida year ago I had a
500sq.ft addition built - 1 story, STONE siding, ran approx $20 a
sq.ft on a monolith slab Interior was UNFINISHED (ie, no drywall, no
ceiling) and no electrical (did all the wiring myself, as well as
insulation and walls and ceiling). No windows, and a 10ft roll up
garage door at either end of the structure
Basically you get what you pay for, and I would figure on $20 a sq.ft.
as pretty much the low end of the cost spectrum
I pass a place in Central MA that sells pre-fab houses and garages. Thee is
a sign on a two car garage with a second floor attic that reads $11,900. I
have no idea if that includes any foundation or slab.
I looked when I passed it today and the larger garage is there with a
It is on Route 16 in Douglass, MA. Just because I've been passing it for
16 years, twice a day. don't expect me to know the name of it. I'll stop
and get it tomorrow.
Jim, here is an idea. Go to www.tuffshed.com. Yes, the garden shed folks
also build garages. You can get prices right on the web site. Just find
your local dealer and, at least for my area, they publish there prices.
Even though you plan to build it yourself you can use their numbers to back
into an estimate.
Here is SoCal, a 20x20 is $8,875. That does not include concrete pad, or
windows, or much of anything except the weather tight shell.
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