Few suppliers here. Basic woods available maple, mahogany, wenge, etc,....Instrument builders sell fretboards. If you want fancy figure i suggest imports....I´m busy right now as we speak so I don´t have much time for blabbering.
http://www.fiskarslaatupuu.fi/fi/
http://www.korpi-instruments.com/tuotteet.html
http://www.soitinrakentajatamf.fi)/
http://www.thermotimber.fi)/
http://www.puukeskus.fi)/
http://www.dlh-finland.fi/
http://www.op-puu.fi/
http://www.guitarshop.fi/