In a fire door it is important that the vision panel is rated at the same level as the fire door requirements otherwise the vision panel will fail before the rest of the door.
Fire door vision panel height.
Vision panels exceeding 100 square inches in 60 and 90 minute doors require fire resistive glazing.
Standard vision panels not available in fd90 fd120.
Glass sizes and core regulations when working with fd60 and 44m doors.
Fire protection rated glazing in fire doors located in fire walls shall be prohibited except where serving in a fire door in a horizontal exit a self closing swinging door shall be permitted to have a vision panel of not more than 100 square inches 0 065 m2 without a dimension exceeding 10 inches 254 mm.
Ada section 404 2 11 requires that at least one of the vision panels in a door and sidelites adjacent to a door be no more than 43 inches 1090 mm above the floor line to provide visibility and safe access for all.
1981 mm x 610 mm x 35 mm.
Regulations for maximum vision panel sizing on fire doors.
Subject to door size.
6 ft 6 in.
Glass sizes and core regulations when working with fd30 and 44m doors.
This confusion stems from a conflict between nfpa 80 size limits and the size limits prescribed by the ibc and the fact that the listing agencies have tested and listed fire protective glazing in sizes not permitted by the ibc.