I have a WSM that I use for preparing BBQ and smoking meats. I'm able to find wood chips pretty consistently, but the smoker really requires chunks. I can usually find hickory and mesquite chunks at places like QFC or Fred Meyer. However, hickory is kind of boring (and can overpower some meat). I don't like mesquite for anything as I think it makes meat taste bitter.
I've seen alder, cherry, and apple chips and pellets; but I've never seen the chunks. I've also never seen oak. Does anyone know where to look for them in seattle?