We are going to enclose our chimney (premodul by Contura) on the upper floor, and since it stands a bit away from our bedroom wall, we thought of utilizing that space for a "bookshelf." My idea is to make it look like a wall with holes in it, and I also plan to put a small spotlight on each shelf. I’m attaching a picture of how it looks, which might make it easier to understand what I mean.
Black premodul chimney in room corner with measurements, adjacent to a wooden door. A light fixture and wooden floor are visible; area planned for a bookshelf.

The door you see is our bedroom door, and the shelf is supposed to be between that wall and the chimney. Since I won’t be building it myself, I need to hand it over properly to the craftsmen. What I know is that they will use metal studs to place the studs as close to the chimney as possible. My question is mainly about what to cover the stud construction with, as it will also become shelves. Should one use OSB+Gypsum and then build the shelves in MDF, or can the entire construction be made with MDF just as easily? How thick should the MDF be in that case? The idea is that it should be painted white and hence look like the other walls when finished.

So it will be a box around the chimney itself with shelves that attach directly to the bedroom wall to get the widest shelves possible.
 
S
how close to a chimney can you have combustible material?
 
SBH said:
how close to the chimney can you have combustible material?
50mm
 
S
wondering if it would be possible to build it entirely in mdf.
but maybe easiest with plasterboard/osb and mdf for the shelves themselves.
should the shelves be open or have a back panel?
 
SBH said:
wondering if it would be possible to build it entirely in mdf.
but maybe easiest with plaster/OSB and mdf for the shelves themselves.
should the shelves be open or have a back panel?
It should be open straight through the shelf.

Of course, it should be easy to build but preferably with as little waste as possible. And it should be possible to paint with wall paint.
 
I don't see how it would look so good. I would aim for a lånekort instead.
 
raveper said:
I don't see how it could look nice. I would have aimed for a lånekort instead.
What? What do you mean lånekort?
 
S
The library...
 
Yes, I understood that, but I don't understand how that helps me with the question...

Just because I called it a "bokhylla" doesn't mean I'm going to store books on the shelf. Even if I would, it has nothing to do with this thread...
 
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S
The floor plate, door trim, switch, and outlet seem to be in the way of your project. The easiest solution would be to build a square box around the chimney and then attach shelves between the wall and the box. Gypsum on the outside of the box if you want it with wall paint.
 
D
Have you read the manual? I think you need to choose e.g. minerit or gips and not mdf, as the shaft must be made of non-combustible material and you also need to install a vent. But you can cover the shaft with mdf on the outside, however, towards the chimney, there must not be anything combustible.
 
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DanielF said:
The floor plate, door frame, switch, and outlet seem to be in the way of your project. The simplest solution would be to build a square box around the chimney and then attach shelves between the wall and the box. Plaster on the outside of the box if you want it with wall paint.
The floor plate will be removed as it's not needed when enclosing the chimney. Fortunately, the other items are not in the way. 😃

It seems like it will have to be plaster plus OSB, simply.
 
DIY_freak said:
Have you read the manual? I think you have to choose, for example, minerit or gypsum and not MDF, as the shaft must be made of non-combustible material and you also need to install a vent. But you can clad the shaft with MDF on the outside, but there must be nothing combustible towards the chimney.
Yes, I have read the manual. It requires 50mm between the chimney and the nearest combustible material. It's completely correct that vents should also be in place.
 
D
Copied from the manual.

It is permitted to build the chimney completely or partially within an

enclosing shaft. The shaft must be constructed of non-combustible
building boards or gypsum boards. The boards should be joined
at the corners with metal brackets or with externally mounted
wooden battens. The distance between the outer mantel of the chimney and
the inside of the shaft should be 50 mm. If the shaft connects to the
hood on the outer roof, ventilation occurs via the air gap under
the hood roof. If the shaft does not connect to the hood, a vent
with an opening of 30 cm² should be installed high up on the shaft for
ventilation.


To enable inspection of the chimney, an
inspection hatch, measuring 300x300 mm, should be installed
in an easily accessible and inspectable location on the shaft wall.
 
Replace the switch with something like a NEXA wireless switch to keep the electrician costs down and you can easily place the switch on the right side of the door.
 
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