I get this question a lot, and honestly, it’s a really smart thing to ask before your pet spends time around new outdoor furniture. The truth is: it depends on the bench. Some outdoor benches are made or finished with chemicals that can be harmful to pets, especially if your dog or cat licks, chews, or rubs against the surface often.
If the bench is pressure-treated wood, you’ll want to check the label or ask the manufacturer directly. Older pressure-treated lumber often contained chromated copper arsenate, also called CCA, which includes arsenic and is not something you want around a pet that chews. Newer pressure-treated wood is usually made with ACQ or copper azole, which are less toxic than CCA, but they are still not automatically pet-safe, especially when the wood is new and may still release small amounts of copper or fungicide.
Painted, stained, or sealed benches can also be a concern. Many exterior finishes contain VOCs, mildewcides, or drying agents that can irritate a pet’s mouth or stomach if ingested. Once a finish is fully cured, many become much safer, but a bench that still has a strong chemical smell, feels sticky, or is peeling should be kept away from pets until it is fully cured and odor-free.
If you are not sure what the bench was treated with, contact the manufacturer and ask specifically whether the product is non-toxic or pet-safe if licked or chewed. Look for finishes described as “non-toxic,” “pet-safe,” “food-safe,” or “natural oil finish.” Benches made from untreated cedar, teak, cypress, or thermally modified wood are often safer because they resist rot without aggressive chemical preservatives. Natural oil finishes like pure tung oil or linseed oil are generally considered safer once fully cured, though any finish can cause mild stomach upset if a pet ingests a lot.
For a bench you already own, you can lower the risk by sealing it with a pet-safe outdoor wood sealer, sanding away peeling paint or stain, and keeping it covered when not in use. If your pet is a determined chewer, supervision and redirection are your best friends.
Bottom line: without knowing the exact product, I can’t promise the bench is chemical-free, but you can make it much safer by asking the right questions, avoiding old CCA-treated wood and fresh strong-smelling finishes, and choosing an untreated hardwood or a bench clearly labeled pet-safe.