plywood or hardboard?

buzi

hi, please advise, should i use plywood or hardboard under vinyl in bathroom?

thanks

keystone

Hardboard is fine.

Cheers

BuildingFife

We would normally use 9mm ply.

plumb1_2

Yep if fixing to timber floors, the hardboard is fine. Use ring nails for fixing

buzi

plumb1 wrote: »

Yep if fixing to timber floors, the hardboard is fine. Use ring nails for fixing

yes old house with trad wooden floor, I was thinking of using screws to fix down the hardboard

mchale

Was advised once to use oil tempered hardboard as a underlay for vinyl

tony6403

buzi wrote: »

yes old house with trad wooden floor, I was thinking of using screws to fix down the hardboard

Screws might be a mistake. Not much scope for countersinking the heads in hardboard.
I would use ply. Hardboard will more easily transmit any cupping or defects through to your vinyl surface.

keystone

Yes screws won't work. Copper hardboard nails or if you use ring shank nails as Plumb suggests make sure you use short ones - ie no longer than the depth of the floorboards themselves. Nothing worse than the power going off accompanied by a little snap, crackle and pop or that annoying "hiss" sound followed by a little dampness.

Cheers

buzi

most likely go for hardboard but maybe check out chipboard and mdf as other cheaper alternatives to more expensive plywood

keystone

buzi wrote: »

most likely go for hardboard

that would be normal

but maybe check out chipboard and mdf as other cheaper alternatives to more expensive plywood

now you've stopped thinking.

Cheers

cubist

I would say plywood would be overkill for this use. Hardwood is fine.