Peter: I have ordered full size boards (I enjoy cutting mats) from Light Impressions, Dick Blick, and American Frame. LI products are great but takes a long time to arrive. Dick Blick is fast, as mentioned before; I'll probably order all boards from them in the future. I usually order my frames from American Frame; they're great to work with also. Regarding precuts from Light Impressions, I think some LI stuff is sold by Calumet, but not sure exactly what.