Even if you're doing 9" skirting mdf is a good choice. The quality of softwood these days is so poor you need to put a lot of work into it and mostly it starts damp and knotty. They do a lot of foil wrapped mdf for oak/beech etc. finishes now.
@Airhead started
London Fixed Gear and Single-Speed is a community of fixed gear and single-speed cyclists.
Even if you're doing 9" skirting mdf is a good choice. The quality of softwood these days is so poor you need to put a lot of work into it and mostly it starts damp and knotty. They do a lot of foil wrapped mdf for oak/beech etc. finishes now.