Has anyone laid cork flooring?

[starpatch]

I need to lay glue down cork tiles. The underflooring is concrete reasonably level. It was a total head ache but I managed to cut plyboard and have glued down onto the concrete. Only thing is there is some give in it (a couple of millimetres). I don't want these expensive cork tiles to be wasted so thinking best thing might be to remove the plyboard and lay straight onto the concrete. Can anyone advise? thanks

hopeful bump

It’s ok to glue them to a plywood subfloor or direct to concrete subfloor. The main thing is the subfloor must be level.

If the concrete underneath isn’t level, the plywood on top won’t be either. As you say the plywood seems to have “give” that indicates the concrete below is not perfectly smooth and level.

You can get levelling compound for the concrete.

Thank you! I think I will get some levelling compound.