It's the trees - they don't grow wide enough to make panels - you need to take 6mm pine board in whatever widths are available, cut it slightly overlength and glue the edges together to get the panel width you desire. Place pieces alternately face up and face down when gluing and clamping. Trim to size when set and rout feather edge for a raised panel effect if desired.
http://www.youtube.com/watch?v=Xk8VfzrRb_Y&feature=related
Peccavi, May 2009
