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Hidden door in plasterboard wall

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4 Feb 2015
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Aberdeen
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United Kingdom
Hi,
I am in process of renovating my attic room, we have an access hole to the eaves and I'm wanting to make a "hidden" door. By that I mean a door painted the same as the wall that sits flush with the wall with no facings / architrave, all you see when the door is closed is the reveal round the outside of the door. Door isn't massive, around 3ft high by 2ft wide so was going to make an MDF door and fix with concealed cabinet hinges.

The wall has been framed up and sheeted over with plasterboard with a hole left for the door. So basically I have a 2" x 4" frame with plasterboard up to the edge of it, if I was making a normal door the next step would be to nail on the jambs and architraves and hang the door, but that would be too easy.

For a hidden door I want the corner edges to be reasonably solid so it stands up to an occasional whack putting stuff in and out of the attic so I was thinking of using corner tape to cover the plasterboard on one side but then how would I stick it to the 2 x 4 on the other side, from experience plaster / filler doesn't stick to wood very well, would mixing it with some wood glue work? I can't think of how else do do it where you wouldn't have a join line between wood and plasterboard, from past experience that isn't a good idea as it will crack eventually. Was thinking maybe strips of plasterboard on top of the 2 x 4s, corner tape then nail the wooden jambs on through the plasterboard and into the 2 x 4s?

I have seen plenty of these style of doors / access panels so it can't be a new problem but the internet isn't helping me at the moment! There must be a "normal" way of doing this kind of thing. Any advice gladly received!

p.s. yes I know it would be far easier to just put on some mouldings but I like making things more complicated than they need to be so I'm not doing that :giggle:! The whole idea with this is if its a success the door to my ensuite will get the same treatment when we do it up.
 
By corner bead do you mean corner tape like the stuff that has aluminium in it or whatever it is? Wasn’t planning a full skim over the plasterboard just tape and filling the joints and screw heads.
 
Well unless you fit a corner bead or fit some kind of trim then it will only be as strong as the edge of a plasterboard won't it.
 
IMG_20250902_125518.jpg


IMG_20250902_125529.jpg


I've done 2 doors similar to what your proposing as above.

I trimmed the cut edges of the plasterboard with 20mm pvc angle trim.


I then just painted the trim the same colour as the wall and door it tidies it up nicely and isn't really noticeable.

Chris
 
I have a wooden door with a sheet of plasterboard on it - I used strips of wood on the edges - approx 12mm wide.
 

That's the thread I made when doing the original cupboard door and needed to ask about hinges.
 
I've done 2 doors similar to what your proposing as above.

I trimmed the cut edges of the plasterboard with 20mm pvc angle trim.


I then just painted the trim the same colour as the wall and door it tidies it up nicely and isn't really noticeable.

Chris

Thanks that looks really smart. Did you trim it down the inside so it buts up against the door jamb or how did you finish it? Did it take paint ok? Think I'll try some edge tape on plasterboard and if I make an arse of it stick some of this stuff on.
 

That's the thread I made when doing the original cupboard door and needed to ask about hinges.
Very useful thanks, I have the same thoughts and made the same conclusion regarding hinges, was going to use Blum overlay ones with spacers on the frame side so I can use 10mm strips instead of 18mm and keep it less chunky looking. Was planning on using 10mm PSE but guess I could use MDF like you did.
 
IMG_20250902_144015.jpg


You can see there how I'd lined the inside with the mdf and the angle trim was mitred like architrave around the plasterboard.

The trim painted fine with 2 coats of emulsion, didn't need any prep, the mdf was primed before paint.
 

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