To determine Actual Door Size, the following values are subtracted from nominal door size (frame opening/order size)
Actual Door Size: The largest measured width by height of the door leaf as m...
There are several door manufacturers that have achieved a 90 minute UL Fire listing as shown.
Von Duprin CVC with Marshfield Wood Door: Von Duprin is pleased to announce that Marshfield ...
A fire rated door for 3 hours can have one glass light maximum:
100 square inches and must have an approved glass (Firelite type)
Max glass size cannot exceed 12" in width or 33" in height.
Wi...
If a door is being held open by the LCN SEM 7800/1900 magnet or any ME/SE Series Sentronic LCN closer, you can remotely release that door to close by ordering the following parts and wi...