Yes, it is important to wash your deck before painting to ensure the paint applies well and adheres properly. While you don't have to use a pressure washer, it is one of the most efficient cleaning methods. Pressure washing can quickly remove dirt, wood fibers, and flaked paint, getting deeper into the wood than manual scrubbing. You can also clean the deck with a stiff broom and a cleaning solution. Regardless of the method, a clean surface is essential for good paint adhesion. Make sure the deck is completely dry before applying any paint.

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.

Eggshell and satin finishes are best for porches because they sit in the sweet spot between scuffable matte and distracting high gloss. Your porch sees a fair amount of wear and tear, so you don’t want paint that’ll show every mark like matte, but you don’t want to be blinded by glossy paint in the sun either. Eggshell and satin have durability and a look that sits nicely in the middle.

To make sure the paint won’t bubble as you apply it, make sure to paint on a day that’s cooler than 85 degrees Fahrenheit. When the temperature is too high, the paint won’t dry evenly, which can result in bubbles forming on the surface. Another way to prevent paint from bubbling is to clean the walls, apply primer, and let everything dry completely before you begin.