Founded in 1961, Cline Doors has been providing high quality commercial doors for over 50 years. As the oldest manufacturer of flush aluminum doors in the country, Cline prides itself on manufacturing quality doors and frames that withstand the harshest environments. The Series 100BE Aluminum Flush Door sets the industry standard with our experience in the commercial arena. Cline, expanding on this success, introduced the Series 200BE FRP Flush Door, the Series 400SE Heavy-Duty Screen Door, and the Series 500SE Stile and Rail Door. These different door series all facilitate in meeting or exceeding the demands from architects, owners, and contractors. Cline Doors is the perfect fit for your commercial, governmental, educational, industrial, recreational, or transportation applications.