These are surplus after recent works. Good with wooden floors. 9 whole boards measuring 59.5 cms x 80 cms. See link attached.
https://www.screwfix.com/p/diall-wood-fibre-underlay-boards-7m-15-pack/7824r
Fibre Underlay Boards (Deanburn EH26)
This offer has been gifted to someone and is no longer available.