Fiberglass won the debate for us mainly because of the harsh winters here. Our previous door warped slightly in the freezing cold, creating annoying drafts, but the new fiberglass material doesn’t budge at all. It honestly looks exactly like real oak without any of the high-maintenance sanding or staining. My neighbor went a completely different route to prioritize absolute protection against break-ins, and they had Steel doors installed — very secure, great warranty included as part of their package. Both options have great merits depending on your local climate.
