I'm really confused about this. I apologize if this is a stupid question. Can someone straighten me out. I have read about this and looked at diagrams over and over. What I keep reading is that quarter-sawn boards have the rings or grain at 90 deg from the board surface (if you look at the edge) and rift sawn boards have the rings or grain at like 30 deg (diagonal) from the board surface.
Here's a typical picture I found. I don't understand why it's not the opposite. If every rift-sawn board is cut like the spokes of a wheel, why isn't every single board with the grain perpendicular to the board face? and the quarter-sawn boards diagonal?
And which kind is more stable. I've read in some place is QS and in other places it's RS. ???