Trimming a fire door with Karlton kdt184

[Sean Kelly]

I will have to trim about 10mm off the bottom of a heavy fire door. I have purchased a new toy, a Karlton KDT184. Got it off ebay for £106. 110v used twice. Can't wait to get my hands on it. Agred a price of £25 for the first door and £10 for any other doors that need cutting. Do I need to know anything about firedoors? I read on the net that once it is cut it loses it's fire certificate. Also, any tips on using this saw. I know some of you have one. Cheers Sean

 

[simhopper]

You can trim fire doors but the gap around the door must remain at 3-4mm to ensure the doors smoke and fire seals work

 

[Rob Z]

Hi Sean, same thing here...we can't cut, drill or modify a fire door in any way w/o affecting its fire rating. For liability reasons, I won't cut them.