What distinguishes a solid core door from a hollow core door?

A solid core door is distinguished by its construction, which consists of a solid wood or composite material at its core, providing increased strength, durability, and sound insulation compared to hollow core doors. This solid inner construction makes it ideal for areas that require enhanced privacy and security, as it is more resistant to impact and wear over time.

Hollow core doors, in contrast, feature a core made of lightweight materials, usually cardboard or an empty space, which makes them significantly lighter and more cost-effective. However, they do not offer the same level of durability or soundproofing as solid core doors. This core structure is what fundamentally sets solid core doors apart in terms of both functionality and application. Other options like those suggesting lightweight materials or decorative features do not address the core attribute that primarily defines the performance and purpose of solid core doors.