30x50 built into the bank. That's why the walls are stepped concrete. Have 6" Crete floors 10" walls with a 12" rebar grid throughout. Attic trusses give me 6 foot upstairs with 12 foot downstairs. Rolled insulation 6 inches thick then OSB walls inside. I can back truck and 20 foot deck trailer in and close the doors. Nice to have when coming home after a long haul for picking up cars.
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