Pressure treated plywood?

[Wade Lippman]

I am building a raised bed garden. The easiest and cheapest thing to use is a sheet of PT plywood.

I used a sheet as a sand box cover 25 years ago. It delaminated in the first year. Has the product improved any since then?

[Steve Demuth]

I've got pressure treated plywood 35+ years old that's been in continuous ground contact with no failure at all, so there may have been some issue with the grade or quality of what you purchased.

[Mel Fulks]

I remember a real old thread about that stuff. Some posts pointed out that there is a better grade than what is sold buy the BORGS.

[John Ziebron]

Never had much luck either with PT plywood. About 15 years ago I made some raised garden beds and used composite decking that I bought at a good price on Craigslist. Went 2 planks high (about 11 inches) and used cut up steel fence posts to fasten and hold them in place. Still no sign of any deterioration.

[Jim Becker]

My raised beds are bordered with composite material at this point. I original used cedar, but it eventually gave up it's integrity, although over many years. I would never use PT in and around a garden if it's being used for producing food products, personally.

[Wayne Lomman]

I agree with Jim on this. Use something other than pressure treated for food production. I am using steel. I got hold of a heap of steel crates for nothing that I have cut and shut into garden beds. Cheers

[John K Jordan]

My raised beds are bordered with composite material at this point. I original used cedar, but it eventually gave up it's integrity, although over many years. I would never use PT in and around a garden if it's being used for producing food products, personally.

I've read about studies on this but only remember there wasn't a simple answer. I didn't do a comprehensive search just now but this looks interesting: http://www.finegardening.com/are-pre...fe-garden-beds

I want to build a few more this fall including a couple of long ones for strawberries. I like the idea of stone raised beds but how do I talk my wife into carrying all those rocks?

JKJ

[Justin Ludwig]

I use cinder blocks.

My FIL uses poly drums cut in half for his blueberries and strawberries. Unsightly, but highly effective.