Refitting/replacing 16mm floorboards
Refitting/replacing 16mm floorboards
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samdale

Original Poster:

2,860 posts

206 months

Monday 5th August 2019
quotequote all
Picture shows the extent of the problem.
Floorboards have been ripped up badly at some point to lay pipes and then not supported properly afterwards.

The rest of the floor is fine and I don't really want the hassle/expense of digging it all up and replacing.

The boards I've pulled up have no tongue or groove left on them so were supported by resting on little blocks of wood on one edge and resting on the 22mm pipes on the right.

Options other than replacing the whole lot with 18mm chipboard that'll be wide enough to bridge over all the pipes?


Black_S3

2,750 posts

210 months

Monday 5th August 2019
quotequote all
Nightmare. Is that the finished floor as well? Or is it carpeted?

samdale

Original Poster:

2,860 posts

206 months

Monday 5th August 2019
quotequote all
Black_S3 said:
Nightmare. Is that the finished floor as well? Or is it carpeted?
It was carpeted. Carpet to be replaced and this is what I found on pulling it up.

Black_S3

2,750 posts

210 months

Monday 5th August 2019
quotequote all
Ahh that makes it easier... Remove another row of floorboards and replace possibly 3 rows of boards with a single plank wide enough to bridge the gap cut in the joists for the pipe.

samdale

Original Poster:

2,860 posts

206 months

Monday 5th August 2019
quotequote all
Black_S3 said:
Ahh that makes it easier... Remove another row of floorboards and replace possibly 3 rows of boards with a single plank wide enough to bridge the gap cut in the joists for the pipe.
The problem will be finding the board.

I could replace a patch with standard green chipboard floorboard but they're 18mm not 16 so I'd end up with a raised area frown.

Would a power plane work on chipboard? The more I look at it, the bigger bodge it seems to turn into.

Aluminati

2,979 posts

80 months

Monday 5th August 2019
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Those joists have had some serious meat chopped out. Ground floor ?

Black_S3

2,750 posts

210 months

Monday 5th August 2019
quotequote all
You must be able to get 16mm sheet somewhere and cut it to size?

samdale

Original Poster:

2,860 posts

206 months

Monday 5th August 2019
quotequote all
Aluminati said:
Those joists have had some serious meat chopped out. Ground floor ?
1st floor bedroom. Is 22mm really that bad? Appreciate they should be better spaced and holes better than notches etc.

500swk

144 posts

85 months

Monday 5th August 2019
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as said take the next plank out and span it with plywood,it can be got 15mm thick,pack if need,and use screw not nails

Peanut Gallery

2,647 posts

132 months

Tuesday 6th August 2019
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samdale said:
The problem will be finding the board.

I could replace a patch with standard green chipboard floorboard but they're 18mm not 16 so I'd end up with a raised area frown.

Would a power plane work on chipboard? The more I look at it, the bigger bodge it seems to turn into.
I am NOT a woodworker, but I try! - recently cut the wood flooring chipboard you speak of, it did not take long at all to make all my blades rather blunt.

As others have said, my vote would be to remove flooring either side of the pipes, obtain single plank that covers everything, mark on the plank what lies beneath and screw down.

If I was doing it 9 out of 10 screws would be through the pipes.

I believe they sell 16mm ply, cut to strips in the shop.

neth27

476 posts

139 months

Tuesday 6th August 2019
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You can get 15mm ply. It’s just not as common in the shops as 12 and 18mm.
Then as others have said take up boards on both sides and replace with the ply. Add a couple of strips of 1mm packing on top of the joists to bring it up to level with the original floor. .

neth27

476 posts

139 months

Tuesday 6th August 2019
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To be honest I would add noggings inbetween all the joints where the floorboard meets the ply. I think the 15mm ply would bend if you stood on it

V8RX7

28,982 posts

285 months

Tuesday 6th August 2019
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You won't see / feel 2mm with underlay and carpet

Just P5 that run

You can run a plane / sander over the leading edge before fitting it if you want, or gripfill and a blade to form a ramp when it's down


Mr Pointy

12,757 posts

181 months

Tuesday 6th August 2019
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As an alternative you could screw lengths of 2 x 3/4 (or similar) to the underside of the board on the RHS of the pipes jutting out to form a support (but just clear of the pipes) all the way along the length of the last board (in sections of course because of the joists).

The proper way would be to lift the boards next to the pipes & fit noggins at 90 degrees to the joist & almost touching the pipes which would give support to the edge of the board over the pipe but you could get away with what I have described above. You need to be very careful screwing the boards back down & I suggest you use consider using Spax flooring screws although they are a bit expensive if you only need a few.
https://www.screwfix.com/p/spax-tx-countersunk-wir...