What string gauge do the manufactures put on their guitars before shipping them to the store?

Question

What string gauge is typically found on a brandnew acoustic guitar?

Answer 1

A lot depends on the make of the guitar.
The different factories even have different sets for different kinds of guitars.
A classical Spanish guitar of professional quality needs different strings from a Yamaha teaching guitar.

If you want a set of strings that is right for your guitar, go to a good music shop that specializes in them, and ask.