A quality, well-maintained PVC decking can last 30 to 50 years. It’s known for being one of the most durable types of decking materials, with composite decking having a 25- to 30-year average lifespan and some softwood deckings only lasting 10 to 15 years. Luxury hardwood decks like Ipe may last longer than PVC decking, but they can cost more and require more maintenance.

There are approximately 5.33 board feet in a 2x4. You can use the board foot calculator in this article to easily find the answer. A 2x4 is 2 inches of thickness by 4 inches of width, so you need to find the length, with 8 feet being the most common. You’d use the calculator here to multiply 2 times 4 times 8, and then divide by 12, arriving at a total of 5.33 board feet. 

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.

Rot loves moisture, so deck rot typically impacts the parts of a board that stay wet. This includes the underside of boards, in addition to support posts and joists. However, any part of a board can rot, given the right conditions.