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. 

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.

Expect to spend around $10,000 to $11,000 to replace a 20-by-20-foot deck. Using high-end materials like composite or exotic hardwoods can drive up the cost, as can custom features and design elements. You can also expect to pay more than average if your deck replacement requires a site evaluation or if you need the work done during the busy season.

Yes, it is generally safe to have a fire pit on a deck, but you must adhere to building codes and take several safety precautions. For both built-in and freestanding models, you must use a heat-resistant barrier, such as a fire pit pad or heat shield, between the pit and the deck. Additionally, consider the weight of the fire pit and ensure your deck can structurally support it, reinforcing it if necessary. The fire pit must also be positioned a safe distance from your house, particularly from materials like vinyl siding, to prevent heat damage.