What wood is safe for degus?

Iv looked at the degu safe wood on degutopia.co.uk but i dont know where to buy kiln dried pine. Will normal sheets of pine from a hardware store do - is this kiln dried before processed & sold? Im in Ireland so would appreciate any info on where to purchase it. I want to make shelves from it & i know they will chew it to next to nothing but i dont mind that, just what it to be safe for them to do so.