i want also to know where are these chairs from?

Which ones?

If you are talking about the wire chairs they are by Harry Bertoia, probably from the fifties.

from where can i fbuy them

The manufacturer was a company by the name of Homecrest. I believe out of Minnesota. As far as I know they are out of production and not iconic enough tonhave knockoffs. You can find them in southwest US at mid century modern stores, Craigslist, consignment stores etc. They are meant to have cushions. With cushions they are very comfortable and they have a great look with or without.

Where did you get the garage doors? Did you manufacture or purchase? What are the dimensions and how difficult to install?

I would like to more about the garage doors too.