If your brand new fence has a noticeable green tint, you're not imagining it. Fence Company of Columbus gets this question regularly, especially in the first week or two after an install. The short answer: the green color is completely normal, and it goes away.
Pressure treated lumber gets its name from the process used to protect it. Manufacturers force a liquid preservative deep into the wood fibers under high pressure so the treatment penetrates the core, not just the surface. Most residential pressure treated wood today uses a copper based preservative, and it's the copper that gives the boards their green or greenish tan color when fresh.
You'll notice the color is more visible on some boards than others. That's because the uptake varies slightly based on wood density and grain. Some boards absorb more of the preservative and show more color. Others come out with just a faint tint. It's all the same treatment, just varying natural absorption.
The color starts to fade within a few weeks as the wood dries out and the copper oxidizes. By six months, most fences have shifted from visibly green to a lighter tan. By the end of the first year, you typically can't tell it was ever green. The wood will continue to weather from there, gradually moving toward a soft gray if left unsealed.
Ohio summers accelerate the process. The combination of sun exposure and humidity cycles pulls moisture out of the boards and speeds the color change. A fence installed in June will look noticeably different by October.
No, and this is the most common mistake with new pressure treated wood. Fresh PT lumber has a high moisture content from the treatment process. Applying a sealer or stain before the wood has had time to dry traps that moisture inside, which leads to peeling and poor adhesion. Most manufacturers recommend waiting at least six months before applying any finish, and many fence professionals suggest waiting a full year.
If you want to test whether the wood is ready, sprinkle a few drops of water on a board. If the water beads up, the wood is still too wet to stain. If it absorbs quickly, the wood is ready.
If you leave pressure treated wood unfinished, it will weather naturally. The green fades, the tan fades, and the boards gradually shift toward a weathered silver gray. That's a completely acceptable look on a privacy fence, especially in backyard applications where the fence is functional rather than decorative.
If you'd prefer to keep more of the warm wood tone, a semi transparent oil based stain applied after the wood has fully dried will slow the graying process and give the fence a more finished appearance. Either route works. It's a matter of preference, not necessity.
Whether you're planning a new wood fence or want advice on caring for an existing one, Fence Company of Columbus is here to help. We serve homeowners across the Columbus area and offer free estimates on new installations.
👉 Call us, email us, or fill out the form on our Home page to get your free estimate. We serve Powell, Dublin, Westerville, Worthington, Hilliard, Upper Arlington, and Delaware.
80 Grace Drive Suite L - Powell, OH 43065
Business License # HIC-L01324
