The Perma Guard is a 1-3/4″ full thickness wood core. A rigid unitized construction using a finished grade 16ga. galvanized steel facing bonded and riveted to a solid wood core.
Constructed in accordance with the current standard details of the U.S. Postal Service, “Handbook RE-5, building and site Security Requirements” design specifications for carrier and mailing vestibule doors.
This model can also be used as a security door in other aspects.