Interior Fixed Window

While these interior side windows do not have a separate frame, they do come standard 1.5” thick and made from Ottostumm hot rolled solid steel.

These interior side windows come with pre-installed 5mm thick tempered glass, with the exception of Frost glass, which will be dual pane tempered glass. Different glass thickness options are available via request with our custom sales team.

These steel interior side windows feature a bolt-through design. Pre-drilled holes along the frame’s perimeter allow for versatile mounting options within the rough opening of various framing materials.

These pre-drilled holes also allow you to take advantage of our modular interior door system. This system enables you to create full or partial wall partitions by pairing the door with one or more of our interior side windows.

Steel doors offer many more enhanced security features when compared to their wood, fiberglass, vinyl, or aluminum counterparts. These steel interior side windows are made with Ottostumm hot rolled solid steel, drawing inspiration from 20th century design characteristics, with a modern twist. Ottostumm materials are known for their durability and sleek profile, allowing for a wide range of creativity that works in any application. This slim jamb size gives you the ability to mount these interior doors in any position within the jamb in order to achieve the look and feel you are going for.

How thick are your steel interior fixed side window jambs? 

While these interior side windows do not have a separate frame, they do come standard 1.5” thick (net size)

How does the interior side window mount to the wall? 

These steel interior side windows feature a bolt-through design. Pre-drilled holes along the frame’s perimeter allow for versatile mounting options within the rough opening of various framing materials.

These pre-drilled holes also allow you to take advantage of our modular interior door system. This system enables you to create full or partial wall partitions by pairing the door with one or more of our interior side windows.