A flush door is a type of door characterized by its smooth, flat surface with no panels or raised moldings, creating a sleek and contemporary look. The term "flush" refers to the door's surface being level or even with the door frame when closed. 

Here's a more detailed explanation:

• Design:

  They offer a clean, minimalist aesthetic, making them a popular choice for modern interiors. 

• Advantages:

  Flush doors are known for their simple design, affordability, and ease of cleaning. 

• Types:

  Flush doors can be hollow-core (lighter and more economical) or solid-core (more durable). 

• Applications:

  They are commonly used in residential and commercial settings, including bedrooms, closets, and bathrooms. 

• Construction:

  Flush doors are typically constructed with a solid or hollow core, with the outer surface made of materials like plywood, MDF, or veneer.