Rank: Super forum user 
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How can you take 3mm off the top of a fire door if you can't remove the certificate from the top of the door. I alawys thought that you cannot take anything of the top but according to Premdor fitting instructions you can.
You can't take the cert offf because it says that it must be retained unmarked and not removed or certification becomes invalid.
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Rank: Super forum user 
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Take 3mm off the door frame, so the door fits.......
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Rank: Super forum user
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Ian Bell2 wrote:Take 3mm off the door frame, so the door fits.......
Well they should say that because the carpenter who thinks he knows how to fit one follows the instruction's that the manufacturer produces.
I just say by the door set!
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Rank: Forum user
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If the door fitter is competent to fit Fire Doors / doorsets he/she should know what they are doing and fit the frame correctly in the first place.
If the frame is fitted correctly, there should be no need to plane anything off the head of the door.
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Rank: Super forum user
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The point is you can't take anything of the head of the door!
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Rank: Super forum user 
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I am not a qualified fire door fitter but always thought fire doors come as part of a "doorset" including door/s, frame, hardware etc.
Is it possible that the wrong size was ordered in the first place and someone is trying to hide their error.
I recommend ordering the correct size door set to avoid any potential problems when the fireball thunders its way along the corridor.
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Rank: Super forum user
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A lot of fire doors are designed to allow them to be trimmed. I just look at one manufactures specification I had and it says 9mm from the sides, 3mm from the bottom, nothing from the top!
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Rank: Super forum user
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firesafety101 wrote:I am not a qualified fire door fitter but always thought fire doors come as part of a "doorset" including door/s, frame, hardware etc.
Is it possible that the wrong size was ordered in the first place and someone is trying to hide their error.
I recommend ordering the correct size door set to avoid any potential problems when the fireball thunders its way along the corridor.
You can buy a door to go into an existing frame.
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Rank: Super forum user 
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I'm no door expert but I do know that some door frames are not a standard size. Therefore you would need to plane the door to fit. Logic says you would plane the bottom of the door does it not?
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