Door Lining intumescent

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hamd01

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I've recently installed a door lining kit from b&q. I'll be honest, getting it plumb perfect took me near enough 5 hours.

Having never installed one I didn't wonder why there was a groove on the entire length, both sides and across the top. Included in the kit are 3 thin strips of wood that fit in the groove.

I wondered if it could be a intumescent housing. I didn't order a fire door lining, so bit surprised... and I guess if it was an intumescent housing it wouldn't come with inserts.

Can anyone advise, as I'm worried that I can't quite understand how this groove will be concealed
 
Photos please

The strips sound like loose stops for the door
 
It sounds like you purchased a fire check door frame, eg

www.diy.com

Metsä Wood Redwood pine Internal Door lining set (H) 210cm x (W) 13.2cm | DIY at B&Q

Metsä Wood Redwood pine Internal Door lining set (H) 210cm x (W) 13.2cm - B&Q for all your home and garden supplies and advice on all the latest DIY trends
www.diy.com

If so, the grooves are for intumescent strips. The thinner bits of timber are the door stops (the timber against which prevents the door trying to exit via the opposite side of the frame).

Not really sure how to advise you further- sorry. You could fit intumescent strips and then paint over them but they will still be slightly visible. You could backfill with 2 pack filler but that will require a lot of sanding and in time it will become very slightly proud- although after the second sand it is less obvious.
 

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opps said:
It sounds like you purchased a fire check door frame, eg

www.diy.com

Metsä Wood Redwood pine Internal Door lining set (H) 210cm x (W) 13.2cm | DIY at B&Q

Metsä Wood Redwood pine Internal Door lining set (H) 210cm x (W) 13.2cm - B&Q for all your home and garden supplies and advice on all the latest DIY trends
www.diy.com

If so, the grooves are for intumescent strips. The thinner bits of timber are the door stops (the timber against which prevents the door trying to exit via the opposite side of the frame).

Not really sure how to advise you further- sorry. You could fit intumescent strips and then paint over them but they will still be slightly visible. You could backfill with 2 pack filler but that will require a lot of sanding and in time it will become very slightly proud- although after the second sand it is less obvious.
Click to expand...
Cheers. What I don't understand is if it's for intumescent strips, why have they included wood to fit into the grooves. Hopefully the pics make sense.
 
Looks like you have completely misunderstood how a door lining is assembled , and your link is faulty .
You can fit the sides back to front to lose the rebate for strip .
The thinner section fit flat to door lining not into groove.
 
Last edited:
hamd01 said:
Cheers. What I don't understand is if it's for intumescent strips, why have they included wood to fit into the grooves. Hopefully the pics make sense.
Click to expand...

It is just a coincidence that the door stops fit in the gaps.
 
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