Looking for Loewen standard sizes? Our Product Configurator allows you to browse our standard sizes and make configurations.
Our standard 4-9/16″ jamb can be cut down to achieve a shallower 4″ jamb, this is often used in drywall-return installations.
The location of the nailing flange on our Contemporary frame automatically creates a 4″ jamb, it’s important to note that an extension is used to achieve a 4-9/16″ jamb in this case.
The larger of our two main jamb sizes, 6-9/16″ (166mm) jambs are available as full jambs on our Terrace Doors.
Our windows will use one of our extensions to achieve a 6-9/16″ jamb size.





























