Sugar Pie
You can buy them at Williams-Sonoma for about $10 for 2..... or get 2 at Home Depot or Lowe's for about 75 cents.

Sarah
Home Depot or any other hardware/lumber store. You may have to sand them down though....sooo yummy to cook trout with ;)

halfbloodprincess
DONT GET THEM FROM HOME DEPOT OR LOWES!!! (they are very likely to be chemically treated with something you don't want to ingest! I don't mean to be obnoxious by capitalizing, but it's really important) You can buy them from any gourmet food store. I have seen them at regular grocery stores as well, either with the cooking stuff, or with the BBQ stuff. Ask a clerk....or better yet, call ahead

chicky
you can get these at any lumber yard but make sure they are not treated... tell them you want to use them in bbq`ing... they will make sure you get the right ones..

wxyz
I saw some at costco.

nightcrawler
Chicky is right. Why pay the price from a gourmet food store.They are really expensive. I buy the untreated lumber and it works great. Soak the planks for 1/2 or more in water before using...

David H
home depot, orchard supply hardware (OSH), wal mart, lowes any pool and spa store that also sells grills. longs, safeway. Look in the outdoor/bbq/grilling section of any of these stores. BTW in my opinion cedar planked salmon is far over rated for the cost of the cedar planks. just put the salmon on the grill and cook it over indirect heat with apple or alder wood chips.