Ceterisparibus? [Including surface prep., curing time for primer (if any), application process, number of coats.] But even then, are both sides of the wall exposed to THE SAME type of conditions.. too is something worth considering. ...
Factory-finished doors are quite durable and will last a long time, so go ahead and order the door with a factory primer or primer plus a finish coat. If the finish paint doesn’t come in a color you like, order a pre-primed door, and we can finish it with the color you p...