I recently constructed a bench using treated pine lumber from Home Depot, and the wood felt damp while I was working with it. I'm wondering if I can go ahead and stain it now, or if I need to let it dry out for a while first.
3 Answers
It's generally recommended to wait a year for treated lumber to completely dry before applying any finishes. It's usually sold soaking wet because it's pressure-treated. If it's just for outdoor use, make sure it’s fully dry; otherwise, you might face issues with your stain not adhering properly.
You don't need to let it dry to a bone-dry state, but finishing while it's still quite wet isn't ideal. If you're in a warm area, like Florida, letting it sit for about a week usually works well. Just be cautious with your choice of stain; go for one that's made for treated lumber to avoid issues later on.
Most of the lumber in big box stores tends to be on the wet side. It takes roughly a year per inch of thickness to properly dry. Using a moisture meter can help you figure out the right timing, but remember that if it cracks later, it might just be a part of the process since you already worked with it.
Good point! It’s always tricky with treated wood. It’s built for longevity outside, but having to wait that long can be a hassle.

Yeah, I'd agree—pressure-treated wood is meant for outdoor use and doesn't typically require finishing indoors. If you do stain it while still damp, just know that it might not hold up as well.