This is because extra core component materials are required in the construction of the door to achieve its fire rating.
Fire door thickness uk.
They could however have been upgraded or modified to achieve fire resisting standard.
Older panel doors especially if less then 44mm thick are unlikely to be fd30.
All of the standard uk and metric door sizes are usually available as a fire door equivalent with the only difference being an increased door thickness of 45mm.
Is your door a fire door.
Fire door standard sizes all of our standard uk door sizes are typically available in a fire door equivalent.
External flush pwd paint grade fd30 fire door 2032mm x 813mm x 44mm 322721 this paint grade plywood veneer door comes in a range of sizes with a choice of standard core fire rated core or fire rated core glazed with clear georgian wired glass.
Common options are 2040 x 526 626 726 826 926 x 40mm.
Construction of a fire door fd30 30 minutes fire doors are usually 44 45mm thick as opposed to the standard door thickness of 35 40 mm fd60 60 minute fire doors most commonly used in commercial settings are normally 54mm thick.
Fd30 fd60 fire doors our 30 minute fire doors fd30 and 60 minute fire doors fd60 are certified and ensure that you are safe in the event of a fire.
Can i use the existing door frames or mdf.
Most fire rated door cores in the uk consist of any one of a number of materials the actual product construction with some having a timber framing around the core and with a surface veneer while others have a lipping measuring 5 20mm thick around the core with a veneer on top.
That said fire door assemblies have been the traditional way of installing fire doors in the uk.
The main difference between these and the standard uk sizes above are an increased door height of 2040mm and door thickness of 40mm.
How thick should my fire door frame or lining be.
Frame or lining thickness would usually be tested at a minimum 30 mm finished size excluding stops or the thickness given in the manufacturers installation instructions to ensure hinge screws hold securely.
Specially constructed fire doors can have a rating of 4 hours or more.
Metric sized internal doors are becoming increasingly popular and are now commonly used in scotland and europe.