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A cedar fence will actually last quite a long time even if you don’t treat it with stain. In fact, you can expect to get between 15 and 30 years out of an untreated cedar fence. However, if you want to preserve its color and extend its life, treat it with a combination stain and sealer every three to five years.

Typically, a fence requires one to two coats of stain. The exact number can vary depending on the porosity of the wood. For specific guidance, it's best to check the manufacturer's instructions. After applying the first coat and letting it dry completely, you can assess the finish. If it appears patchy, uneven, or you want a more saturated color, a second coat is recommended. An extra coat can also help cover lap marks.

Yes, staining or sealing a cedar deck or fence is highly recommended to extend its lifespan, typically by five to 10 years. While cedar is naturally resistant to mold and mildew, it can still fall victim to moisture, sun exposure, and rot over time. Applying a treatment creates a protective shield that helps prevent splintering, fading, and decay, preserving the wood's strength and appearance. A combination stain and sealer often provides the best protection, as it soaks into the wood grain rather than just sitting on top. This offers superior defense against UV damage and rot and lasts longer than a sealer alone. To maintain the wood's natural look, consider using a near-translucent stain. You should plan to reapply the stain or sealer every two to three years.

You can apply stain over peeling stain, but it’s not a good idea. Your old stain will get in the way of your new stain bonding to the wood, so you’re likely going to see the same issue again shortly after application. Your best option is to sand off the old stain and clean the surface thoroughly before applying new stain.