human
I need to build a new deck. What are the best materials to use?
assistant
The best materials to use for building a deck are pressure-treated lumber, composite decking boards, and cedar. Pressure-treated lumber is strong and durable and will last longer than other types of wood. Composite decking boards are made from recycled plastic and are lightweight and easy to install. Cedar is naturally rot resistant and can provide good color and texture to your deck.