Best way to repair bottom of door frames.

[sonofrob]

Hello i was wondering what would be the best way to repair the bottom of my door frames,,,previous owner has cut around 25mm off the bottom to accomodate some oak flooring which i have taken up,,,any ideas anyone,,,???

 

[Nige F]

those rounded corners look awkward. I would get some 22mm MDF and a profile gauge. Cut and shape the MDF then gripfill it in place, prime and paint. The small c.3mm gap will allow some wiggle room

 

[sonofrob]

sounds good,,,would you use the use the grip fill on the top of the shaped piece and fix to the underside of the frame and leave slight gap underneath the shaped piece so its not actually touching the chipboard floor???,,,is that the same as pink grip???

 

[foxhole]

What flooring are you putting down.

 

[sonofrob]

carpet mate...

 

[Gerrydelasel]

And this is precisely why I don't undercut doorframes for flooring. Modern flooring gets replaced way too often.

(I would repair the gap under the frame proper, but leave the door stop undercut -that's normal and discreet, and makes laying carpet and other flooring easier. Plus it's a simpler profile for you to cut out.)

 

[Nige F]

sounds good,,,would you use the use the grip fill on the top of the shaped piece and fix to the underside of the frame and leave slight gap underneath the shaped piece so its not actually touching the chipboard floor???,,,is that the same as pink grip???

Yes, and yes

 

[Diver Fred]

Me - I'd put a wide wood carpet strip* in place, the width of the door casing, rather than try to build up what has prevously been cut away. (but YMMV or SWMBO may have other ideas...)

*a lenght of timber the length of the doorway width + the thickness of the door casing both sides; the widrh of the carpet strip can either be the width of teh door casing or the width of door casing + architrave.

 

[foxhole]

I would leave it, decent carpet and underlay will close the gap.

 

[sonofrob]

i doubt it mate,,,the gap on some frames is 35mm and it hasn't been done neat,,,they haven't even used a piece of the flooring as a guide for the saw,,,its just been hacked at and is mostly uneven cuts,,,id have to undercut it even more to say 40mm if I want to repair it properly,,,first I was going to do it with mdf and shape it but didn't fancy pulling out 150 quid on a scroll saw I probably will never use again,,,ive decided to get a door frame the same as the ones I have if i can find one and replace the bottom 40mm or 50mm with pieces of it and replace the architrave about the same,,,although the lads idea about a wooden carpet strip might work,,,20mm carpet strip slid in and you could probably put a bit filler in the small gaps that were left on top of that and like he said replace the small pieces of architrave,,,we shall see how it goes,,,thanks for all your replies,,,muchas gracias......

 

[lostinthelight]

They way I would try and tackle it would be to , if if you say it needs 40mm off then take a piece of board of that thicknes and lay it on the floor up against the frame to use as a platform guide for a multitool to slice through the frame.
Then slide the guide piece under the frame and draw the frame profile on it
, cut it out and glue it on.
litl

 

[sonofrob]

They way I would try and tackle it would be to , if if you say it needs 40mm off then take a piece of board of that thicknes and lay it on the floor up against the frame to use as a platform guide for a multitool to slice through the frame.
Then slide the guide piece under the frame and draw the frame profile on it
, cut it out and glue it on.
litl

that was my first idea mate when I first looked at it,,,may still do that yet we shall see,,,thanks for the reply...

 

[sonofrob]

what the best glue to stick these to the door frames would you say anybody???,,,need something thatll go on thin as theres only the few mill gap what the saw went through,,,anybody???

 

[lostinthelight]

If you rebate the mating top surface a few mm deep leaving a lip around the outer edge , then drill a couple of holes into the void,wedge it up tight and pump gripfill in one hole untill it oozes out the other.
litl

 

[justbigboned]

If you rebate the mating top surface a few mm deep leaving a lip around the outer edge , then drill a couple of holes into the void,wedge it up tight and pump gripfill in one hole untill it oozes out the other.
litl

Out of interest, how would you rebate such a small piece of MDF?