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.
Vision panel door dimensions.
926 width 150 measurement from one side 150 measurement from another side 626 the only thing that will change is the width of this sum.
Glass sizes visible and lite locations fnv door technical data february 2009 l assa abloy the global leader.
Size limits for vision panels in 60 or 90 minute doors the 2012 ibc model building code contains size limits for vision panels in a 60 or 90 minute door.
Door size 2040 x 926 x 54 height x width x depth.
For reasons of security door leaves and side panels wider than 450mm have vision panels towards the leading edge of the door whose vertical dimensions include at least the minimum zone or zones of visibility between 500mm and 1500mm from the floor if necessary interrupted.
If the vision panel is fire protective glass such as safety wired glass and safety ceramic its size is limited to no more than 100 square inches whether or not sprinklers are present.
Users are frequently confused about the door vision panel sizes permitted in 60 and 90 minute fire doors under the ibc.
This will leave you with max glass vision panel size of 1559 x 926.
Unless it can be argued otherwise in the access statement e g.
Door vision lite kit old style door technical data february 2009 l.
Vision panel sizes and positions doc m and bs8300 door leaves and side panels that are in excess of 450mm wide must be provided with viewing panels giving a zone of visibility between 500mm and 1500mm from floor level as illustrated below.
The vision panel may be a single panel or may be interrupted between 800mm and 1150mm to accommodate a.