Bruce, I plane allot of my own woods, but sometimes I have to order when I don't have what I need. I will always try to get the widest boards I can get. The last time I ordered wood was from Ocooch Hardwoods. I ordered all 1/4" thick boards in 8" and 12" widths, all 24" long. I got some Maple, Cherry and walnut.
I also use 3/8", 1/2" and 3/4" boards depending on what I am making.