best ply for the job

[shaunykieron]

what are the main factors when plying a floor in regards to the thickness used to do the job i.e. 4mm 6mm etc

 

[DHTiling]

12mm to 15mm .. exterior grade ply...............dave..

 

[shaunykieron]

cheers dave that seems really thick to me but your the expert, i've used 6mm before and everything went ok or is that just my lack of knowlege showing

 

[Fred]

12mm min all the time.

 

[shaunykieron]

thank you very much, so what size panal pins are best i know your to place them no greater then 6" apart

 

[DHTiling]

hi shaun.. screw the floor down with drywall screws or brass screws....choose a screw that will go through your ply and into sub-floor but not right through the sub-floor in case you hit a pipe ..etc...thickness of ply + thickness of sub-floor minus 2mm.....dave..

 

[shaunykieron]

again thanks dave is the spacings of the screws corret at 6" apart

 

[DHTiling]

every 200mm to 300mm will do....prime the back and edges of ply with primer before you fix.. i use bal bond sbr and prime the face of the ply as well but not always necessary with some adhesives but extra priming doesn't hurt....dave...

 

[shaunykieron]

your a star cheers

 

[CJ]

Who really primes the back.............Come on now. Be honest

I personally glue and screw ply..........if big area I use a cordless autofeed driver.......if the usual small-ish area I use a impact driver.

Not a fan of drywall screws as they sometime don't pull together as a flooring grade screw..........but thats just me

 

[shaunykieron]

thanks for the advice how do you price it when having ti ply

 

[DHTiling]

thanks for the advice how do you price it when having ti ply

by the hour or day rate if large job.........dave...

 

[penno]

See this all the time, 12mm min for ply, why can't you use 6mm? what are the affects of using thinner ply?

 

[faithhealer]

A friend used 6mm and cracked the grout in a day! Not rigid enough Penno mate

 

[penno]

Wouldn't a good flexi grout prevent this thoughon a thin ply?

(Not trying to pick at things btw just after answers for every eventuality)