Non Tongue & Groove Ply For Flooring

[thomp1983]

Hi all,

Need to floor out the upstairs of our new extension, I've been offered a load of 22mm 8x4 ply sheets for free but there just your normal square edge sheets not tongue and groove.

Joists are 600mm spacing so it's fine thickness side just wondered if I'm asking for an unbearably noisy floor by using non t+g

Thanks
Chris

 

[blup]

On the contrary square edged boards with expansion gaps screwed and properly centred on the joists, will reduce noise/movement that t&g might produce, and are easier to get up if/when the inevitable screw or nail goes through a pipe/cable.
Blup

 

[thomp1983]

That's good news, how big should the expansion gap be?

 

[blup]

A credit card gap between the butted staggered joints and 10 mm around the edges to be covered by the skirting.

Blup

 

[Dereekoo]

On the contrary square edged boards with expansion gaps screwed and properly centred on the joists, will reduce noise/movement that t&g might produce, and are easier to get up if/when the inevitable screw or nail goes through a pipe/cable.
Blup

Expansion gap on flooring thats screwed down every 600mm to joists?

 

[kingandy2nd]

Hi all,

Need to floor out the upstairs of our new extension, I've been offered a load of 22mm 8x4 ply sheets for free but there just your normal square edge sheets not tongue and groove.

Joists are 600mm spacing so it's fine thickness side just wondered if I'm asking for an unbearably noisy floor by using non t+g

Thanks
Chris

These are worth a small fortune at the moment, so take them if you can get them

 

[Deleted member 174758]

Just note that 8 x 4ft sheets are actually 2440 x 1220mm and therefore won't fit directly onto 600mm centres without trimming in the length

 

[thomp1983]

Got 35 sheets this morning along with a 2m steel workbench all for free hard work shifting them though and I've yet to get them upstairs

The spacings aren't all 600mm anyway so there will be cuts regardless to get them sitting nicely.

 

[Deleted member 174758]

On shop fitting work we used to put a 1/4in groove all round and fix the stuff with a 1/4in plywood loose tongue glued in place.

 

[conny]

Instead of trying to carry them all upstairs, measure and cut them downstairs first. You can always fine trim them upstairs and have less off cuts to bring back down.