Extend interior wall 15 cm

[David_a]

I am going to install sliding doors in the hallway and to prevent the closet from becoming too tight, I need to extend one of my existing interior walls by about 15 cm. What is the smoothest way to do this? I live in an apartment from 2004, so it's drywall, and I was wondering if I could attach a stud that is 14 cm thick, and then cover it with drywall, making a total of about 15 cm. Is that a smart idea? I feel that it might be unnecessary to have to screw in studs on the floor and ceiling for this small extension.

Thanks

 

[kimpo]

You can use metal studs on the floor and ceiling and then two standing wooden studs in the same dimension as the existing wall. Or attach three 45 * current dimension "45, 70, or 95 mm."
However, none of these suggestions are perfect since the gypsum/paint/wallpaper will definitely crack where you join it with the existing wall.
It's best to try to saw/cut away a few cm of old gypsum so you can join the new gypsum on the last existing stud.

It got complicated.....and a lot of work for 15 cm.....

 

[David_a]

You can use metal profiles on the floor and ceiling and then 2 standing wooden studs in the same dimension as the existing wall. Or attach 3 pieces of 45 * current dimension "45, 70 or 95 mm." None of these suggestions are perfect, as the plaster/paint/wallpaper will definitely crack where you splice it against the existing wall. It is best to try to saw/cut away a few cm of the old plaster so you can splice the new plaster to the last existing stud.

This got complicated...and a lot of work for 15 cm...

Nice, thanks. I only have wires just two cm into the wall; do you think it works to just cut away about one cm of the existing wall? How do you get a nice even cut on the wall when cutting away the plaster?

 

[kimpo]

If you don't have a bunch of multi-machines or the like at home, a drywall/utility knife works well. Make sure to get a straight line with a level or measure from a wall edge. Make a light cut with the drywall knife to create a groove. Then you can start cutting/pressing harder. After 5 - 10 strokes, you should be through if it's a single layer of drywall. You can also use a dull saw and cut in the groove. Try to cut into half of the stud if possible, it will be better/easier to attach the new drywall sheet then.

Good luck!