Gap between door and frame

4 Oct 2011
Reaction score
United Kingdom
Hi All,

I've noticed gaps between the door leaf edge and the door jamb frame. Its a fire door which should only have a 3mm gap. At the moment its more like 11mm in some places.

I was wondering how can this be repaired without changing all the doors?

I was thinking wood filler the door until it achieves a 3mm gap? Would that be ok?

Sponsored Links
On a fire door, you could add intumescent strip with smoke seal to the frame. You need wooden strip not filler. You aren't allowed to alter the door so put it on the frame (lining).
It already has a intumescent strip in the door. But the gap still seems too wide.

Maybe wooden strip on the door frame jamb?
Sponsored Links

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local