FAQ Knowledge Articles

You will find the letters "CN" for Marvin and Integrity. CN stands for "Call Number." Call Numbers are simply Standard Sizes for windows and doors.  E.g. CN2428 (2428) or CN2828 (2828).

For each product offered with standard sizes, there is a Sizes and Elevations chart which shows all of the standard sizes for that product type.

Special or Custom sizes are also available for Marvin and Integrity products. Contact your local Marvin dealer for more information.

Infinity does not offer call numbers (or standard sizes) as they are all ordered to fit their replacement needs.