A deck is an outdoor platform extending from a house or building, typically made of wood, composite, or other sturdy materials, which serves as a structural feature that provides an elevated open space for various activities. Decks are commonly used for dining, entertaining, or simply relaxing outdoors, and can be designed to complement the architecture of the building they are attached to. They often include features such as railings for safety, steps for access, and may be covered by a pergola or other roofing structures to provide shade. Decks can vary in size, style, and functionality, with some being multi-level or featuring built-in seating, planters, or fire pits. They are subject to building codes and regulations to ensure safety and durability, and require regular maintenance to protect against weathering and wear over time.