On 02/02/2020 11:23, rick wrote:
Have a Weyroc floor fitted over wood joists in a bedroom ... parents
house built circa 1980

Floor is damaged in 2 places (legs of bed had gone through).... dont
really want to re-sheet whole floor, particularly as fitted wardrobes
over part of the floor.

initially thought it would be easy ... make a square cut-out back flush
with joist and fix a bearer timber on joist, to hold edge of new board,
and screw some supports round underside of other 3 sides to form a frame
to fit new piece in.

This plan stuttered today when I measured thickness of the Weyroc
...its 19.4mm. So presumably an imperial 3/4€� sheet.

Anybody know if you can still get 3/4€� sheet ....
If not can you get 20mm as if I have to but 22mm that is not going to
sit flush without a lot of extra work.


Flooring had gone metric by 1980 though, surely. Are the panels
8 by 2 t&G or full size panels ?.

My house was built in 1976 and has 18mm chipboard flooring, using
8 by 2 t&g panels.

Weyroc is just a trade name?? and today they make a moisture
resistant chipboard flooring that is claimed to be suitable
for building during bad weather.

How far apart are the joists ?. Normally 450 mm centres
can use 18mm chipboard (which I have) but if joists are at
600mm then 22mm chipboard must be used.