FAQ Knowledge Articles

Double Hung sash ratio can be altered in the field.  However, each situation will need to be reviewed for confirmation of availability.  It will depend on several factors, including size and ratio, that must be checked on a per unit basis.  To do this the jamb hardware and both sash will need to be replaced. 

Note: If it is not a current product, parts and pieces may no longer be available to change the sash ratio.

Please visit your local Marvin dealer to assist with all the parts needed to initiate this conversion.