Old Hickory Buildings offer a variety of door options. Depending on the building style, the door heights change but widths are the same. 3' wooden doors are 33" x 70", 4' wooden doors are 45" x 70" And double doors are 68"x 70". The 70" height is standard for all buildings with 6' walls. Utility buildings with extra height have a clearance of 75"and garage doors 79".