I am looking for a new exterior door, can any one assist telling me which is better?

Steel door or fiberglass door?

Answer:

It depends on what type of door. A storm door would be different than a front door which would be wood. It also depends on if what it looks like is important to you or not.

Over the tears I have installed lots of doors.I have had problems with the fiberglass doors and heat.They will warp and de laminate.The fiberglass will separate from the interior wood frame.Needless to say that is not a good thing.