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[Closed] Plywood thread -

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Help please. I need to cover the bathroom and kitchen floor with plywood and keep getting conflicting advice on thickness.

I've been told by one place it's ok to use as thin as is available i.e 3mm

and another source 18mm.

Can anyone offer advice based upon experience or knowledge?

Thanks


 
Posted : 22/09/2012 1:44 pm
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wrong forum
🙄

Please report to have switched to - 'off-topic'.

Thanks


 
Posted : 22/09/2012 1:45 pm
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Depends on whether he's kitting out the bathroom for washing his bike in the bath...


 
Posted : 22/09/2012 2:31 pm
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Depends on why you are doing it. If you are going to tile then you need the heavy stuff. If you are going to put down laminate flooring then less


 
Posted : 22/09/2012 2:45 pm
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Not telling Belugabob 😳

It's just for lino leffeboy?


 
Posted : 22/09/2012 2:49 pm
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4mm is fine for vinyl and laminate, i assume lino would be the same. What would the ply be fitted on to?


 
Posted : 22/09/2012 3:14 pm
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4mm is usually fine as long as the sub floor is pretty smooth to begin with, I generally would go for 6mm though as it is far sturdier and would thenbe suitable for Karndean etc if req.


 
Posted : 22/09/2012 5:29 pm
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As empireofthefun says. If the subfloor is smooth you will get away with 4. If the boards underneath are curved much then it would creak and be annoying. I would start at 6.


 
Posted : 22/09/2012 5:37 pm
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I have done this loads of times, use 6m ply and make sure you cross all the joints. You can use some PVA to stop any noise. I use 20mm clout nails to pin the board down and sand all the joints.


 
Posted : 22/09/2012 5:56 pm
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One point missed use the thickness that doesnt bring it above the floor level in the other room i.e you dont end up with a step or trip hazard


 
Posted : 22/09/2012 6:58 pm
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The trade standard is 9mm if your going to tile the floor.


 
Posted : 22/09/2012 7:01 pm
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Cheers for the replies - much appreciated.

petetheplumber - what do you mean by 'cross the joints' and where to apply the pva?

It's lino (vinyl) that'll be going down. It's going on stone (slabs) downstairs and wooden floor board upstairs.

Been mulling it over however and decided to use a screed over the stone floor once the existing tiles are up.


 
Posted : 22/09/2012 7:48 pm
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If you floor boards go from north to south lay the ply across east to west. If you have T&G floor boards just lay the ply the other way across. You don’t want the edge of your new ply to run the same way as your old floor. PVA on old floor then lay new ply and nail it down. Only use nails as long as your sub floor in thick. That way you won’t hit any pipes under floor. If you can, let the ply sit in the room it’s to be used in.


 
Posted : 22/09/2012 8:37 pm
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Cheers Pete - much appreciated.

Just one more question if you will - Is it worth buying the dedicated 'joint-tape' or is it just as good as the repairing tape I have?


 
Posted : 26/09/2012 1:19 pm
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Joint tape ?? you smokin ?

Your ply should fit machined edge to machined edge, secured as pete says, my only proviso is that if you ever need access to your pipes underneath its a new floor you'll be needing....


 
Posted : 26/09/2012 1:31 pm
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Yeh mon!

It's 2 pieces of 8 x 4 that will be fitted, machined edge (on the assumption they fit flush from the off and don't need trimming) but as they're not being tiled on they will need taping where they join otherwise they can create a crease in the vinyl that will be fitted over it (so i've been advised). Saw some joining tape or joint tape and wondered what the difference was between that and other tapes??


 
Posted : 26/09/2012 9:38 pm