I've come across this at B&Q. It says it's FD30 but its only 35mm.
http://www.diy.com/nav/build/doors-windows/doors/interior-doors/fire_doors/-specificproducttype-unglazed/B-and-Q-Oregon-6-Panel-35mm-Internal-Fire-Door-NAT26OK634-Oak-Veneer-10798001
Questions:
1. Wonder if it comes with...