It was still Upjohn when I moved. I grow up in the HVAC business. Now I do computerized environmental control of greenhouses.
I'm thinking a 4 by 8 coop 3 to 4 foot tall will house 4 hens and have enough ventilation for the winter with a 2 by 3 opening at the end of one of the 8' sides. The house would extend 4' into the garage and be high enough off the floor to fit the hood of the car under it.
In the summer, screen over the 4' wide access door that would be centered on the opposite wall of the window.
I'm thinking a 4 by 8 coop 3 to 4 foot tall will house 4 hens and have enough ventilation for the winter with a 2 by 3 opening at the end of one of the 8' sides. The house would extend 4' into the garage and be high enough off the floor to fit the hood of the car under it.
In the summer, screen over the 4' wide access door that would be centered on the opposite wall of the window.