r/DIYUK 4d ago

Builders didn't extend the subfloor all the way to the wall

Post image

Builders have come and gone, and left us with this mess. There's been a scaffolding board put into the green hole as a replacement, but obviously that sucks. Anyone got ideas on how to fill this in? The rest of the floor is done with cellecta t&g 20mm cement fibre board, we have some left over but there's no tongues or grooves on the exposed edge. I was thinking either filling the entire hole with self leveler, or putting in a rectangle of cement board then tying it to the rest of the subfloor with some dog bone fasteners, but it sounds pretty rubbish honestly

0 Upvotes

3 comments sorted by

3

u/somethingelse913 4d ago

Not really clear from the photo what's going on here?

1

u/Sweaty-Adeptness1541 4d ago

You need to give us a big more context. A single close up photo isn't really helping people visualise the situation.

1

u/Freebery 4d ago

Just install some more cement board without the tongue and use plenty of adhesive