Plywood vs MDF - Loft Flooring

Soldato
Joined
9 Aug 2004
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Milton Keynes
Putting down some flooring in the loft, due to lots on insulation I have put some xtra 2x2" planks Parallel down at 10" apart and then put bits of 12mm ply board on top, this has worked so far and easily holds my weight.

I have now run out of ply. So i went to wickes and had a look and its a fair bit of money and then i saw mdf lot cheaper.. so would mdf be as good? The guy at the store said it was a lot better as less flexing but surely cheaper=worse..

So ply or mdf fr flooring and also 9mm or 12mm thick?
 
Soldato
OP
Joined
9 Aug 2004
Posts
7,795
Location
Milton Keynes
Okay fair enough MDF sucks..

Now another question.. As the breams are 10" apart what thickness can i get away with.. for putting things on and me walking over (12-14st) at the moment the 12mm doesnt move at all so.. 9mm? 6mm? or just be on safe side and get 12?
 
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