Detached garage

[Tim Hicks (Texas)]

I see detached garages with no drywall all the time. I see some older homes with attached garages with no drywall. It is not required unless it is a local building code.

 

[Mark K]

I see detached garages with no drywall all the time. I see some older homes with attached garages with no drywall. It is not required unless it is a local building code.

You probably DON'T SEE weeks at a time where the temps don't get over 20 degrees or below zero at night.

Here, they're either insulated with drywall or insulated with OSB on the walls. Otherwise, they're about as useful as a large meat locker.

However, code doesn't require finished interior walls except for attached garages on the walls adjacent to living areas, fire code thing. I'd be inclined to make a negative adjustment for an unfinished garage vs. a finished.