Think Twice Before Using Pressure Treated Lumber - The Truth Nobody Tells You

Think Twice Before Using Pressure Treated Lumber - The Truth Nobody Tells You Five years ago I set two shipping containers down the same week, fifty feet apart. One sat on pressure treated blocks. The other sat on plain old Douglas fir. Today the treated blocks are mashed flat and splitting apart, and the fir hasn't moved an inch. It isn't rot, and it isn't the chemicals. It's the tree under the green. In this video I explain what pressure treating actually does, what it doesn't do, and why the wood hiding under that green tint can be a whole lot weaker than folks think. Most people buy treated lumber for anything heavy or outdoors, figuring green means tough. But treatment only protects wood from rot and bugs. It does nothing for strength. When you need a board to carry serious weight, the species decides almost everything. What we cover: What happens inside the pressure treating tank, and the one job the chemical actually does Rot resistance vs. strength, and why a board can win one fight and lose the other Why blocks get crushed across the grain, with the real design numbers builders use What I saw rolling through an Oregon rail yard, and what it tells you about the wood under the green Hem-Fir, Douglas fir, southern yellow pine, cedar, and S-P-F, and which ones can really carry a load How moisture and those little incision cuts weaken treated lumber A simple system for deciding when to use treated wood and when to skip it How to read the grade stamp, and why most folks read the wrong tag Three ways to fix it if you already built with the wrong wood Treated lumber has its place. Use it for ground contact, wet spots, and anywhere your building code calls for it. Just know which fight your wood is in before you put weight on it. I'm a wood man, not a building inspector. For houses, decks, or anything that could hurt somebody, talk to a qualified professional and follow your local code. 🔔 Subscribe for more practical wood knowledge that most folks never bother to find out. #PressureTreatedLumber #Woodworking #Lumber #Homesteading #DouglasFir #BuildingTips #DIY #Sawmill #Appalachia #WoodKnowledge #ShippingContainer #Construction