Flush doors are sleek and contemporary door types that have a simple and smooth surface without any intricate design or paneling. They are made by sandwiching a solid core material, such as particleboard or timber, between two thin layers of plywood or MDF (Medium-Density Fiberboard). Flush doors are known for their clean and minimalist appearance, making them a popular choice for modern interior designs. They are versatile and can be painted, stained, or laminated to match different decor styles. Flush doors are also known for their durability and resistance to warping, making them suitable for both residential and commercial applications.