How much does it cost to build a garage?

My wife and I will be purchasing a vacation home and would like to build a new garage. The garage will be used to a Boston Whaler (boat) and likely a 16ft sailboat along with some other smaller items. Looking for ideas as to how much this would cost.How much does it cost to build a garage?
15'x20' is about $20000.00 depending on Building CodesHow much does it cost to build a garage?
The last time I checked about 15 years ago, you could do a simple garage for about 15 to 20 dollars a square foot. So I would guess in todays market it would be like 20 to 30 dollars a square foot.How much does it cost to build a garage?
We would need a lot more information to even give a somewhat close answer. Where, what size. how finished, etc.