Hi Bj, The door opening measures 6' 8" high. Hope that helps!
Hello, Yes, when properly anchored this can be left up year round. To discuss in more detail feel free to call us at 1-800-932-9344. Thank you
Yes, it can be fully closed.
This product is only available in green or grey on homedepot.com. Thank you
"Shelterlogic does not sell the cover separately on our 12 ft. W x 20 ft. L x 9 ft. H Barn Style Grey Garage. The Cover Kit, part #311123, can be purchased by calling Shelterlogic direct at 1-800-932-9344. The Cover Kit includes the cover and two double zippered end panels, which retails for $539.99."
"The material on Shelterlogics Model #97053 is made out of 9 oz. polyethylene. Shipping charges vary depending on where you live. You would have to contact Home Depot for shipping fees."