Building a garage, cost $$$$

Went through the same thing last summer.
The quotes I got were 25K to 30k.
30 ft by 24ft 9ft ceiling insulated one entry door 16 x 7 insulated garage door one window on the south side French doors in the back east side attached to house which added cost due to fire code sheet rock entry door etc.
Full wallboard interior, electric and garage door opener. Siding and trim to match house.

Slab,footers and steel $1700
Built my own trusses $400
Over head door $800 with opener
By the time I was finished just over 10 Grand.

Did the whole building permit inspection thing as well.

I'm not a contractor just did the research and a little sweat and time.
Took me about 7 weeks.

If I did it again I might get some help with the Concrete work.
First thing I realized is Contractors add 25 to 35 percent to materials.
The rest is lobar. Don't get me wrong that's their gig it's how they make an
Honest living. If I had the money sure it would have been I want this there let me know when it's done and I'll write a check. But I have to say when it was finished and I look at it now, Money can't buy how good it feels to know I built the garage where I'm building my Mopar.