10A NCAC 14J .1515 SWINGING DOORS
(a) Plate doors installed in plate walls shall be made of steel that is at least the same quality and thickness as specified for the wall in which the door opening is installed.
(b) Plate doors installed in concrete or masonry walls shall be made of material not lighter than 3/16 inch thick open hearth steel plate framed and stiffened with angles, bars, or other shapes and securely hung to door frames made of structural or bent plate channel at least 3/16 inch thick.
(c) The depth of plate door frame shall equal the thickness of the wall.
(d) Grating doors installed either in grating, plate walls, or concrete or masonry walls shall be constructed of tool‑resisting steel or open‑hearth steel as specified by the plans.
History Note: Authority G.S. 153A‑220; 153A‑221;
Eff. June 1, 1990;
Pursuant to G.S. 150B-21.3A, rule is necessary without substantive public interest Eff. January 5, 2016.