Hi - new person here. We are learning about using the dead timber, etc. to make a raised bed. This interests us very much as we have a small sawmill business and we live where there are lots of trees. But most of those trees are pines with some hardwoods like oak, walnut, hickory, sweet gum, etc. We can get dead pine trees all the time. In fact, we had a large dead one here on our place go down last night with the storm front that went through. That's what got us started on this path today. LOL! We also have a very large hickory that died last year (still standing) and a couple of big oaks that went down a couple of years ago (been using some of them for firewood in the house). A HUGE oak tree in our yard died this year and we had to have it taken down. The tree guys said it was the biggest tree they'd ever done. It was 17 feet around the trunk (not the bottom part). We hated losing that tree...but now we have a yardful of huge pieces of the trunk and other various sizes of wood. We live out in the country - our mailbox is a mile and a half from the house. We already have a good organic garden with lots of dark topsoil we've spent decades building up. Things grow really good out there. Our okra gets 15 feet tall easy. But we would like to utilize the deadwood/sawdust more. We are setting up a woodgas engine to run the sawmill and other things so some of the wood can be used that way, too, but not all of it by any means. We need to know if these kinds of trees, especially the pine, are ok to use for this kind of raised bed or not. Sorry for the long rant...