Hello,

I am renovating the hallway and will eventually lay floor tiles.
I need to make sure that the new floor keeps as low a height as possible.

Standard (if I understood correctly)
Chipboard on the floor joists.
Floor gypsum on the chipboard.
Tiles on the floor gypsum.
Cross-section of flooring showing layers: subfloor on wooden joists, a middle layer resembling chipboard, and a top layer, likely tiles, for low height renovation.

Thinking of an alternative method!?
"Support joists" between the floor joists.
Floor gypsum on the support joists, between the floor joists.
Floor gypsum on the chipboard/floor joists.
Tiles on the floor gypsum.
Cross-section diagram showing proposed floor construction method with interlocked support beams and gypsum board for height reduction in a hallway renovation.

The advantage of this is that I save the chipboard's thickness of 2.2cm in height which can be the difference between being able to order standard size for the door instead of having to order custom size.
(No, unfortunately, I cannot install the door higher without other complications)
And yes, there will be a lot of extra hassle with this method :)

My question is;
Is the alternative method unsuitable/bad?
 
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Charl1e
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That method works well! (y)
Go ahead.

//AA
 
As you say, it will be a lot of work, but the solution seems sensible.

However, I would reconsider the floor gypsum. It should be glued with special adhesive to achieve sufficient stiffness in the floor for tiles (if you have cc60 on the floor joists). Wouldn't it be easier to reinforce and self-level on the chipboard?
 
I'm picking up this thread a bit.
I have removed my flooring chipboard in the hallway to lower chipboard between the joists (so the boards are flush with the joists). Over this, I planned to install electric underfloor heating and self-leveling compound. The reason for lowering the boards is because I want to lay vinyl click over both the area with underfloor heating and where I don't lay underfloor heating, so that these floors are level.
Mostly I just want confirmation that this is a solution that works. But I also wonder if I should lay something under the self-leveling compound to prevent it from moving with the chipboard/joists?
 
  • Wooden floor joists with exposed insulation and removed particle boards in a hallway under renovation, with walls partially stripped of wallpaper.
G gallsbo said:
I am reviving this thread a bit.
I have torn off my chipboard floors in the hallway to lower chipboard floors between the joists (so the boards are flush with the joists). Over this, I planned electric underfloor heating and self-leveling compound. The reason for lowering the boards is because I want to lay vinyl click over both the area with underfloor heating and where I don't lay underfloor heating, so that these floors are even.
Mostly I want confirmation that this is a solution that works. But I am also wondering if I should put something under the self-leveling compound so that it doesn't move together with the chipboard floors/joists?
I am considering doing the same, placing the chipboard in between to lower the floor and lay tiles, planning to use fiber screed and reinforcement, how did you do it, did it turn out well?
 
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Sim22
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F fredrikolofsson said:
I have the same thought of placing the floor chipboard in between to be able to lower the floor and lay tiles, planning to use fiber putty and reinforcement, how did you do it, did it turn out well?
For me, it turned out great!
I did as I planned, placed the floor chipboard between the joists, screwed drywall onto it.
Haven’t had any problems whatsoever 2 years later :)
 
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gallsbo
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F fredrikolofsson said:
I'm considering lowering the floor with chipboard to lay tiles and I'm thinking about using fiber filler and reinforcement. How did you do it, did it work well?
I lowered the chipboard panels so they were flush with the beams. But I laid vinyl flooring. I've heard that this is a less ideal solution for tiles, as there can be some movement between beams and chipboard.
 
D Daaaaaniel said:
For me, it turned out great!
Did as I planned, placed the floor chipboard between the joists, screwed gypsum on it.
Haven't had any problems whatsoever 2 years later :)
Yes, then the movement between chipboards and beams shouldn't affect the tiles.
 
D Daaaaaniel said:
For me it worked out great!
I did as I planned, placed the floor chipboard between the joists, screwed plaster on it.
Haven't had any problems 2 years later :)
Hi! We are planning to do like you ☺️ Did you use 22mm floor chipboard? What size joists did you use? Any other tips and advice? Thanks for the help!
 
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