Harry, If you are using these raised beds to grow edibles, treated lumber is not recommended in some articles that I have recently read. I don't remember which chemical it is that is supposed to leach out. If you have information to the contrary, please excuse the butinsky. I thought I would pass along what I had read. Allen Bastrop Co. SE Central Tx. Harry Boswell wrote: > I'm in the process of building several raised beds, some of > which I'm building using pressure-treated southern yellow pine; > but I'm also building some from untreated yellow pine. I've got > a couple of concoctions I'm putting on the untreated wood, to > see how long the wood will last; but, if any of you have run > across any wood treatment that you'd like me to try, let me > know and if I can I'll include it in the test. I'll be watching these > beds over the next couple of years, and I'll keep y'all posted on > the progress. > > Harry > > Harry Boswell hboswell@netdoor.com > USDA Zone 8 > http://www2.netdoor.com/~hboswell