How to tell if a door is a fire door?

What am I looking for to make certain it is a fire door?

Asked by Monika Lydia on 17th Sep 2025
Expert Trade Answers
"It should either say on it FD30 or FD60. Hope this helps"
Answered on 17th Sep 2025 - Member since Nov 2022 - report
"If the door is 44mm thick then you pretty much certain its a 30min firedoor
Also some fire doors have a round plastic plug in one of the edges denotes whether its a 1 hour or 30 min firedoor"
Answered on 17th Sep 2025 - Member since Jan 2018 - report
"Hi Lydia,

So either the door or door linings should have intumescent strips around the whole perimeter of the door/door frame.

Other indicators -

Signs/labels
Hardwood door
Intumescent strips"
Answered on 17th Sep 2025 - Member since Sep 2025 - report
"Hi ya
If you look on the very top edge of the door you should see manufacturer stamp FD30 meaning half hour fire protection or FD60 means one hour fire proof"
Answered on 17th Sep 2025 - Member since Jul 2022 - report
"It would normally have a sticker on the top
It will say FD30 or FD60
Or maybe if it was a fire door it should either have a door closer on it or fire door self closing hinges
Hopefully that helps
If not please don’t hesitate to contact me
Kind regards
Richard"
Answered on 17th Sep 2025 - Member since Nov 2024 - report
"Fire door will intermecent strips in frame or edge of door door closer fire rated hinges and hardware maybe small blue fire door sign"
Answered on 17th Sep 2025 - Member since Feb 2020 - report
"Normally a fire check door is thicker than a normal internal door a normal door being 35mm and a fire check door being 45mm"
Answered on 17th Sep 2025 - Member since Jan 2015 - report
"Should be a sticker on top of door sometimes it’s on the hanging side says fd30 or fd60"
Answered on 17th Sep 2025 - Member since May 2024 - report
"A half hour fire check door is 4645- 45mm thick
A hour fire check door is 554mm"
Answered on 18th Sep 2025 - Member since Apr 2022 - report
"To check if a door is a fire door, look for a certification label, heavier build, and special seals around the edges. For reliable fire door handles and accessories, Handles4u is the go-to brand!"
Answered on 18th Sep 2025 - Member since Sep 2025 - report
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