Many exterior cellar doors are horizontal like trap doors into your cellar crawl space or basement.
Best paint for metal bilco doors.
The paint does its best on interior doors.
Bottom line the pewter color is pretty durable than white or off white color.
Since horizontal surfaces are especially vulnerable to full sun and sometimes standing water or snow a paint suitable for other horizontal surfaces such as decks will hold up better.
Other bilco door models such as the classic series ship with a baked on coating of primer to guard against rust.
Over time dings and damage to the basement doors can wear away the primer and allow rust to form on the surface of the door.
Painting metal bulkhead doors by joe keegan on june 8 2011 at 11 13 pm old houses often had a set of bulkhead also called bilco doors which provided a large open access to the basement.
A gallon of paint can cover a wooden or metal door without any hustle.
Removing rust from a bilco basement door can be done in an afternoon.
People who are confused about what color to paint bilco doors can use it.