How to fit Spanish pre-finished door casing/lining?

[rrodd]

Hi all
This might seem a simple question with an obvious solution but I'm stumped.

I'm buying a house in Spain and the previous owner has bought internal door 'packs' - prefinished, prehung doors with casings (with stops) but hasn't fitted them.

I've never seen finished casings before and I can't think of a way of fitting them. All the doors I've fitted before have been unfinished so nailing/screwing through the casing into the frame and making good before painting is ok. Obviously I don't want to do that with a finished casing. Even an 18ga nail will be visible.

The stop/slam strip does not appear removable, and there are no fixings in the pack. The finish does not appear to be primer, and the colour goes with the colour scheme.

On the hinge side I could screw through the hinge holes, or put a screw in under the hinge but that still leaves the latch side.

Suggestions?

 

[Wayners]

Door stop on? Fix there then doors stop will cover screw holes.
Or
Maybe they just wedge frame and glue in with foam and polymer grab.
Set door on a outer MDF frame like with fire doors. They come pre finished in a frame.
I was told new houses have doors in frames as well

 

[rrodd]

Hi Wayners
No, the stop is attached and finished, no way to remove it without damage.

Don't know anything about firedoors so don't follow what you say there.

Our new UK house had prehung doors in a pack with casing, handles etc, but they needed painting after installation. If these fires were like that I wouldn't have a problem, but I don't want to spoil the finish because it's really good.

 

[Wayners]

If you had a MDF lined frame you could just the unit in and hold in place with a polymer grab

 

[rrodd]

Apologies Wayners, the notification of your post went into my spam folder.

In the absence of other suggestions, adhesive seems to be the only solution on the table.

The problem is, because I haven't had a chance to trial fit, I don't know how much space there is between the frame and casing. I wing know that until I next visit when I hope to get the bathroom door fitted at the least.

I had thought of two headed skirting nails but think it might be tricky to get the casing plumb, and it would need plenty of space - the length of the nail to position the casing. Overall a bit tricky I think.

In terms of adhesive, the way I see it, if there's space on the latch side, I can screw the door tight on the hinge side and use a gap filling adhesive on the latch side. But I don't have much confidence in gap filling adhesives. Alternatively, I can use an adhesive with a short open time on the latch, and put it together, and pack out the hinge side.

If there's not much space, I won't be able to get adhesive in the small gap with the door in place so I'll have to put adhesive on the casing, in which case there's a danger of it being scraped/pushed /squeezed out as the door is slid into position. The last thing I want to happen is spoiling the surface with glue smears.

So, hoping for enough space between the frame and casing, what's the best approach
Latch side against frame with contact adhesive and pack out the hinge side, or
Gap filler on latch side (maybe with packing) and hinges against frame?

The frame in the stud wall is wood, the casing is mdf.