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Carpets, Lino & Flooring

plywood/underlay/wooden floor ?

Anonymous user 15/03/2024 - 2.56 PM

Hi there, I have pine wood floor boards (19mm depth) that I would like to remove and change for new hardwood flooring (solid or engineered ). How thick should the plywood be that I will screw to the joists ? and what underlay should I use under the new flooring (to reduce the noise, material, thickness)? I would like to keep the thicknesses of the new floor to a minimum to not change the height of it too much. Thanks a lot for help and advice. Marcel

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4 Answers

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Bognor Regis
Hi the plywood would be dependent on the solid wood depth you purchase.The underlay I would suggest is Regupol, which is acoustic and 3mm thick. So look at the depth of the wood you purchase add the 3mm underlay and that should give you an idea of the thickness of ply you would need to bring you up to the correct height.
Answered1 May 2020
7

Tilenwoodcreations

No reviews yet

Harrogate
I think it would be totally pointless removing the old floorboards unless they are totally rotted.if you did remove and replace with plywood it would have to be a minimum 15mm and preferably 18mm so the hieght would be the same near as dammit than the original floor.Save your money and buy a good quality engineered wood and either secret nail it direct to the floorboards(by far and away the best method )or use a 4mm good quality underlay and float the floor but no where near as good as secret nailing.good luck...john..
Answered1 May 2020
1

Archer Furniture

Rating: 5 out of 5
Rugby
Hi, I would suggest keeping to 18mm or 3/4" ply. Anything less you are going to risk flex and bounce which will cause you problems on you finished floor. Check with the floor supplier as they will have a minimum recommendation. Same for the underlay, adhesive etc.
Answered1 May 2020
1

Anonymous user

The above answer was perfect, I just wanted to add that you can get structural engineered boards (Especially designed for this purpose) that would negate the need for a ply subfloor at all, this is fixed directly to the joists with a vapour barrier, before the installation, you’ll have access to the cavity under neath, allowing you to install sound and thermal insulation. Just another idea, good luck.
Answered10 May 2020
0