Final Q's before i rip up my floor

[Deleted member 174758]

Some of the joists are at an angle, so even though they are level, the level is of the top edge (ie not sat flush). do you advise planing 1mm off this edge to try and give the board more of a flush base...

If we get a badly twisted joist that's exactly what we do - and not always a couple of millimetres, either. The way to check is to place a straigjt edge (e.g 4ft level) across 3 or more contiguous joists. If the diffetence is a couple of millimetres i wouldn't bother planing it out in many cases

edit: just had a thought - would 18mm plywood be better for bathroom instead of 22mm chipboard? I will be putting a shower tray on a mortar bed.. cheers

Plywood is generally a bit more waterproof than chipboard, but even it won't stand being constantly waterlogged without either delaminating and/or rotting. If your chip ozrd is P5 then things are six of one and half a dozen if the other

 

[markyyyyyy]

If we get a badly twisted joist that's exactly what we do - and not always a couple of millimetres, either. The way to check is to place a straigjt edge (e.g 4ft level) across 3 or more contiguous joists. If the diffetence is a couple of millimetres i wouldn't bother planing it out in many cases


Plywood is generally a bit more waterproof than chipboard, but even it won't stand being constantly waterlogged without either delaminating and/or rotting. If your chip ozrd is P5 then things are six of one and half a dozen if the other

Cool, I'll go with chipboard then so that it's same height throughout. Would I need to put plywood on top of can I put a mortar bed straight onto chipboard for shower tray?

 

[markyyyyyy]

Nearly there now!

Thanks for your help with it.

Messed up on cuts around door frame (left too big gap at edge) but the skirting and door frames will cover it.

 

[Deleted member 174758]