SWMBO wants a new floor. We currently have mostly very old floorboards
in poor cosmetic condition, and a new floor will help to sell the house.
Apparently.

We'd need about 50m^2 altogether, about 10m^2 of which would be on concrete.

Thing is, I can't quite see the need for 14mm thick boards atop the
existing floorboards, but that's what seems to be the recommended option.

Now, I know you're a shy bunch, but if there are any opinions before I
spend...

Cheers
--
Clive