Well, treated lumber is just that... treated with chemicals, so I am not sure you want that in your veggie bed. We had a raised bed in California and we used redwood. Expensive, but worth it. Lots of bugs (the kind that eat wood - think termites/borers) hate redwood due to the oils in it. It is hard and it is very durable. Good luck!

Yes, you could use treated lumber, but even though it is treated, it will eventually rot in less than 10 year. I've had experience with the stuff. I am now transitioning all that rotting wood to stone. I strongly recommend spending a little more money, even if it means just doing a little at a time, and purchasing stone for your raised beds. You can get it in natural shapes or in roughly cut blocks. We opted for the blocks because it was easier to place. The stoneyard near us had a wide block - just as wide as it is tall and a narrow block - half as wide as it is tall. We went with the latter because we wanted the height, but didn't want the extra weight and it still holds all the soil in place. Another reason I would not suggest treated lumber, even though they have taken the arsenic out of treated lumber, is whatever they use to preserve the lumber might leach into the soil and get taken up by your veggies.

We tried pine 2 X 12s, it was expensive and rotted in 2 years. If I were doing another with sides, I'd choose cinderblock,

Pam

I use pine to start the beds, but plan on adding limestone chopped block to finish it out before the wood ever goes bad.
{{gwi:115270}}

Thanks everyone for your tips, I appreciate it.
Bryanccfshr: your picture looks so nice...are you growing veggies in them? if so, what?
Take Care all
~Angie~

I am growing a little of everything. Squash& Zukes(14 combined), Cabbage, spinach, broccolli,cauliflwer, Kohlrabi, lots of carrots and we Started some peas too. I also have several herbs, multiple lines of oregano, lemon balm, basil, thyme and a few others I can't name off the top of my head, and soon cilantro once it cools just a little more.
In the picture in the bed on the right was a crop of Mung beans I used for green manure. I plan on growing many more veggies in the fall and winter and having a huge Tomato and melon crop in the spring and early next summer. I have other planting areas around the perimeter of my yard as well.