Recently had to get the underside of the ground floor fogged by Rentokil because of woodworm.
Need to replace part of a joist and replace the knackered chipboard kitchen floor with ply.
I know pressure treated 4x2 is easy enough to obtain.
Is pressure treated 18mm approx ply widely available does anyone know? If not what is best to brush on to exterior ply? - about 9 sq metres