Ottostumm | Mogs

W50-TB Thermally Broken Steel Doors & Windows

Custom steel doors and windows made with original Ottostumm FerroFinestra W50-TB profiles. Classic steel proportions with an integrated thermal break for exterior applications.

Open W50-TB steel pivot door in a brick-walled room

Why choose W50-TB

W50-TB combines the traditional steel appearance of the FerroFinestra range with a thermally broken frame. It’s an option for residential, commercial, and renovation projects that need steel doors and windows with improved insulation.

A high-density polyurethane barrier separates the inner and outer steel sections to reduce heat transfer through the frame. The system accommodates insulating glass up to 38 mm thick.

Close-up of a black W50-TB steel frame corner with insulating glass

System features

W50-TB thermally broken steel corner profile with insulating glass
Material
1.5 mm cold-formed galvanized steel
Thermal break
High-density polyurethane
Glazing
Insulating glass up to 38 mm
Windows
Side-hung, top-hung, bottom-hung, and pivoting
Doors
Hinged, sliding, and folding configurations
Details
Multiple glazing bead profiles and traditional or contemporary hardware

Available configurations depend on opening dimensions, glass weight, and hardware requirements.

W50-TB cross-section drawing showing the polyurethane thermal break

Made to your specifications

Choose your dimensions, glass, finish, hardware, and divided-lite layout. BlackFramed coordinates specifications, shop drawings, fabrication, and delivery.

Shop drawings are prepared after the deposit and submitted for approval before production.

W40 or W50-TB?

Choose W40 for original hot-rolled steel profiles without a thermal break. Choose W50-TB when your project calls for a thermally broken frame.

We’ll help you select the system and glass configuration based on your project’s location, design, and performance requirements.

Explore W40

Request a W50-TB quote

Send your plans or opening dimensions, project location, and preferred design. We’ll review the details and provide a quote.

Request a Quote