Your Winter's might be mild, but your Summers can be HOT!
If your putting metal siding on the garage I'd put 4' of OSB around the inside, so you don't dent the siding when something inside falls against the wall.
Mike B
Mike Boteler
1956 Chevy 3100 Resto Rod 1952 Willys M38 Army Jeep 1983 Jeep CJ7 Laredo 1984 Jeep CJ7 +++++ Silver Spring, MD