The general consensus is that two coats of stain are required and since the cedar is siding, a third coat of sealant is always a good idea. This helps protect the wood and stain, so you won’t need to resand and restain for at least a decade. Each stain after the first will darken the wood, so be aware of that when choosing a colored stain.

Choosing whether your deck should be lighter or darker than your house is a matter of personal preference, as there is no right or wrong answer. However, considering the pros and cons of each can help guide your decision. Darker colors are often chosen because they show less dirt, footprints, and marks from daily wear, making them easier to keep clean. On the other hand, lighter deck colors tend to stay cooler in the summer. From a design perspective, using a deck color that contrasts with your home's exterior can help make the deck a more defined and distinct feature. Consulting color theory can also make the process of choosing a complementary house and deck color combination easier.

Applying a sealer or topcoat after staining wood is highly recommended, though not always strictly required. A sealer protects the wood from moisture, UV rays, and weather-related issues, which is especially important for outdoor surfaces like decks and fences. It also enhances the stain's durability, prevents fading over time, and gives the wood a cleaner, more professional-looking finish. For some indoor applications, a sealer may not be necessary, depending on the type of stain used and the level of protection needed. It's always best to check the stain manufacturer's recommendations and consider the wood's intended use and exposure when deciding whether to apply a sealer.

Wood stain is not flammable after it dries. The solvent in wood stain is what causes the liquid form to be highly flammable, but the stain drying process involves the solvents dissolving, which leaves behind a non-flammable product on your wood project. Wood stain is, however, flammable before you apply it, so you should always store partially full cans and used wood stain rags away from sources of heat and open flames.