Fire Door Frames

- Feb 24, 2019-

Frames used in masonry walls may be used with a maximum 3-hour fire door, while frames used in drywall stud walls are intended to be used with a maximum 1-1/2-hour fire door. • Consult with individual fire door frame manufacturers listings for fire door frames that can be used in drywall stud walls with a maximum 3- hour rating. • Grout is not required for fire rated frames installed in either drywall or masonry walls at any hourly rating.