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 ...
Masonry T anchor are approved for fire rated frames up to 3 hours. T Anchors are shipped lose for field installation.
Anchor construction: The T portion and the strap do have minimum dimensions th...
The 6223-FSE electric strike is fire rated for pairs of wood doors, but check with wood door manufacturer to see if they have been approved for this application.