laying laminate on "dished" floor

[norbellini]

i have a bedroom floor that is is dished in the middle . What is the best way to pack it out to get a reasonably level start to lay T&g laminate floor its about !/2 inch lower in the middle ,with a straight edge

 

[mointainwalker]

......and the floor is concrete/ wood/chipboard ?

 

[ladylola]

Is it actually noticable when the bed and furniture are in the room? Is it evn noticable when there's nothing in the room and you are standing up? Probably not and I think you are most likely worrying about nothing.
That said (and assuming it's a wooden floor) if you intend to go ahead then use ply. I've worked on floors that have dipped by several inches and built it up with ply , feathering it down to match the exsisting floor with a power planer.

 

[norbellini]

its a floorboards .It is going to be noticable the dip is in the part of the bedroom that is viewed as you stand at the door , i believe if is caused by previous owner removing dividing wall downstairs to create a "through lounge That said i will try as you say to pack with ply

 

[ladylola]

Although I can't see the floor colasping , if a wall has been removed from below you may consider getting a structural engineer or even a local builder in to check it even if only for peace of mind.