Steel exit signs are popular for their attractive design and durability. Our basic steel exit signs are manufactured for indoor use in commercial facilities such as schools, offices, and retail applications. Our heavy duty steel exit signs are designed for high abuse areas such as prisons and for institutional uses, such as hospitals. Steel exit signs are not designed for outdoor areas, if you ened a durable sign for outdoor areas, check out our Wet Location and Vandal Proof Exit Sign categories.