Solid wood doors are 100% natural wood that has not been engineered. Solid wood doors are still usually constructed of frames and panels, rather than one single piece of wood. The wood used can vary from hardwood such as maple or oak to softwoods such as pine.

Durability: The heavier weight of solid core doors also makes them more durable than hollow core doors. They can better withstand all of life's bumps and bruises. They're also more resistant to expansion and contraction than traditional wood doors, making them a better choice for hot and humid areas like the bathroom.