How Long Do Wood Signs Last Outdoors? (Real Lifespan Data + Maintenance Tips)

How long does a wood sign really last outdoors? The answer depends on the wood, the finish, and how it’s cared for. In this guide, we break down real-world lifespan data—from 5 years to 20+—compare the best woods for outdoor signs, and share practical maintenance tips to help your custom wood sign stay beautiful for decades.