You've probably seen the failure already: a fence leans after a wet season, the soil line looks dark, and a screwdriver sinks into the post while the section above still appears sound. The usual explanation is “bad pressure-treated wood,” but the bigger problem is often a mismatch between the post's treatment category and its exposure, […]
Pressure-treated wood is lumber impregnated with chemical preservatives under high pressure in a sealed cylinder, so the biocide reaches deep into the wood cells. In the treated-wood market, that process sits on a very large industrial scale, not a niche coating, and pressure treatment is what lets outdoor decks, fences, posts, and ground-contact framing last […]