I have some doorways that do not follow standard dimensions and in order to fit the standard doors I have bought, I need to reduce the height of the doorways.
My question is how do I do this in the best way? I have about 85 mm between the frame and the doorway at the top, which is too much to cover with a regular trim.
I have attached a picture that roughly shows how the wall is constructed, it's an old house, so there are layers upon layers of plasterboard in different thicknesses. In total, the wall is ~135 mm thick.
I could place a stud, like 45x70 across the doorway at a suitable height and then cut plasterboard pieces to size and screw them in, but how do I bring the plasterboard level with the surrounding wall?
Another option I am considering is to saw appropriately long (wall depth-2*12 mm) pieces of 45x70 and place these through the doorway, so that the end grain is level with the wall, and then screw the plasterboard into the end grain. In that case, it would probably be 3-4 such blocks evenly spaced over the door opening.
Or is there an obvious way that I've not thought of? The question might be silly, but being a beginner, that's how it is.
Another question, is it problematic to cut plasterboards that are so narrow (they will be about 8*100 cm)?
My question is how do I do this in the best way? I have about 85 mm between the frame and the doorway at the top, which is too much to cover with a regular trim.
I have attached a picture that roughly shows how the wall is constructed, it's an old house, so there are layers upon layers of plasterboard in different thicknesses. In total, the wall is ~135 mm thick.
I could place a stud, like 45x70 across the doorway at a suitable height and then cut plasterboard pieces to size and screw them in, but how do I bring the plasterboard level with the surrounding wall?
Another option I am considering is to saw appropriately long (wall depth-2*12 mm) pieces of 45x70 and place these through the doorway, so that the end grain is level with the wall, and then screw the plasterboard into the end grain. In that case, it would probably be 3-4 such blocks evenly spaced over the door opening.
Or is there an obvious way that I've not thought of? The question might be silly, but being a beginner, that's how it is.
Another question, is it problematic to cut plasterboards that are so narrow (they will be about 8*100 cm)?
Rule and plaster are probably the right approach from your side. No problem at all cutting plaster at 80x1000, good knife, ruler, and cut a few times before breaking.
But a 45x70? You have to calculate how thick it should be - One solution is two pieces of 45x70 with a gap between them that you stand on edge to match the thickness of the wall. Subtract for the thickness of the plaster as well as a bit of room for filling.
The unfortunate part is the wallpaper on the walls, which likely can't be saved in any nice way...
But a 45x70? You have to calculate how thick it should be - One solution is two pieces of 45x70 with a gap between them that you stand on edge to match the thickness of the wall. Subtract for the thickness of the plaster as well as a bit of room for filling.
The unfortunate part is the wallpaper on the walls, which likely can't be saved in any nice way...
2 pieces of 45x70 with an air gap between them was a good idea. It's just important that they are positioned sufficiently towards the middle so that there is something to screw into, as the outer layers of the wall (3-4 cm on each side) are just sheet material. But it should work.
The wallpaper is probably ruined, yes, but at least it's still available to buy, so I hope to manage by replacing a couple of strips. On the other side, it needs to be completely re-wallpapered anyway.
The wallpaper is probably ruined, yes, but at least it's still available to buy, so I hope to manage by replacing a couple of strips. On the other side, it needs to be completely re-wallpapered anyway.
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