In most cases, sanding an old deck before staining it is necessary to achieve a decent finish. If your old deck has a relatively new stain finish on it and you're only doing touch-ups, you can generally skip the sanding part. However, if your goal is to make the deck look and function better, sanding first is a must. 

Liquid rubber is great for waterproofing, but it can damage your deck if it’s not applied correctly. First, it can trap moisture in the wood if the deck isn’t completely dry before application.  Second, applying it too thickly can create a heavy, rubbery surface layer that peels and cracks under fluctuating temperatures. For the best results, ensure the wood is completely dry before application, and apply the liquid rubber in thin, even coats. A quick inspection every now and then will help you catch any issues early, keeping your deck protected and looking its best.

The best paver for your pool deck depends on your budget, style, and how much maintenance you’re willing to invest. Granite is one of the best low-cost pavers for pool decks. It’s very slip-resistant and durable, too, making it a top pick. Travertine is a high-quality material that resists freeze-thaw cycles, looks stunning, and won’t get hot in the summer. The only downside to travertine is that it costs more than granite.

Spindles on a deck may also be called balusters or pickets. While not as important to the structural support of the deck as the rail posts, they play a critical role in ensuring the deck is safe to use by closing in large gaps in the railing. For this reason, balusters must be no more than 4 inches away from one another.