Studio Steel · Ottostumm FerroFinestra W75 TB

Maximum glass, maximum thermal performance.

PINKYS builds Studio Steel doors and windows with the Ottostumm FerroFinestra W75 TB, the highest-performing thermally broken system in the FerroFinestra range. It is the system for wide-format openings, triple-pane assemblies, and projects where the glazing specification and thermal ceiling drive profile selection.Cold-formed steel, glass-fibre reinforced polyamide thermal break. Glazing up to 58 mm, triple-pane capable.
Thermal Break

W75 TB

Highest performing in the range

Max Glazing

58 mm

Triple-pane capable

NFRC U-Factor

Project-specific

Certified data on request

LEAD TIME

12-15 wks

From approved drawings

W75 TB Frame and Profile Data

US NFRC whole-window U-factor is project-specific. The PINKYS Studio Steel team provides certified figures for the climate zone and opening configuration.

Steel TypeGlazing CapacityThermal BreakNFRC whole-window U-factorGlazing optionsGlazing Bead OptionsGasketsApplicationsMaximum Unit Sizing
1.5 mm cold-formed, sharp-edged steelUp to 58 mm unit thicknessGlass-fibre reinforced polyamide insulating coreProject-specific certified data on requestSB70; triple-pane IGU capable up to 58 mm; dual-pane with laminate available (not combined with triple-pane)Rectangular, triangular, and double-L profiles; steel and aluminumEPDM co-extruded sealing gasketsInterior and exteriorContact the PINKYS Studio Steel team
ottostumm thermally broken w75 steel corner on white background
ottostumm thermally broken w75 steel corner on white background
Ottostumm_Steel_W75_TB_CAD.jpg
Ottostumm_Steel_W75_TB_CAD.jpg

Glazing Options Within the 58 mm Capacity

Glazing selection determines the final whole-window thermal value.

Glazing TypeNotes
Triple-pane IGUThe 58 mm glazing pocket accommodates triple-pane insulating glass units at greater depth than the W50 TB's 37 mm capacity, supporting thicker spacer and gas-fill configurations. Both the W50 TB and W75 TB support triple-pane glazing. Confirm the specific IGU configuration with the Studio Steel team.
Double-pane IGUDouble-pane sealed units. A broad range of air fills, gas fills, and spacer configurations is available at the W75 TB glazing depth.
SB70High-performance low-e coating available in W75 TB double- and triple-pane configurations. Visit the glass options page for detail.
Dual pane with laminateA dual-pane IGU with one laminated lite, for safety, acoustic, or security requirements. Available in PVB or SGP interlayer configurations. Not available as a triple-pane build-up; laminated glazing in the W75 TB is offered dual-pane only.

W75 TB is available in eight opening configurations across windows, doors, and fixed glazing, the widest configuration set in the range. Flush and overlapping aesthetic options are available within the system.

Windows

Hinged window.  Side-hung, top-hung, or bottom-hung. Flush and overlapping aesthetics.

Tilt-and-turn window.  Tilts inward for ventilation or swings fully open.

Pivot window.  Horizontal and vertical pivot configurations.

Fixed

Fixed glazing.  Available as standalone or combined with operable units.

Doors

Hinged door (swing door).  Single and French (double) configurations. Flush and overlapping aesthetics.

Pivot door.  Centre or offset pivot. Contact the Studio Steel team for sizing parameters.

Sliding door.  Single or multi-panel sliding configurations.

Bi-fold door.  Multiple panel configurations. Contact the Studio Steel team for maximum span.

What the W50 TB does, at greater scale.

The W75 TB does what the W50 TB does and goes further: thicker glass, larger openings, and a higher-performing thermal break. Its glass-fibre reinforced polyamide insulating core spans larger openings and supports heavier glazing assemblies while maintaining thermal break integrity. The profile is also more structurally advanced: continuously laser-welded for higher mechanical performance than the W50 TB cast-in construction, with co-extruded EPDM sealing gaskets in place of the W50 TB mechanically fixed rebate gaskets, a more robust, durable seal against weather.

Flush or overlapping.

The W50 TB retains the classic double-overlapping FerroFinestra appearance, preserving the proportions of the original hot-rolled profile. The W75 TB adds internally flush, externally flush, and fully flush configurations alongside overlapping, giving a contemporary, minimal-reveal option the W50 TB does not offer.

A refined, modern counterpart to the hot-rolled profiles.

Where the hot-rolled W20 and W40 carry the warmth and irregularity of worked steel, the W75 TB cold-formed construction reads as precise and contemporary, a premium specification for projects that want thermally broken performance paired with a cleaner, more engineered look.

Tilt-and-turn in a thermally broken profile.

The W75 TB supports tilt-and-turn within the thermally broken range. A single sash tilts inward at the top for ventilation or swings fully open as a casement, a configuration common on commercial facades, high-occupancy residential, and any application where one hardware position operates two opening modes.

NFRC data, CAD drawings, hardware confirmation.

The PINKYS Studio Steel team works through the W75 TB specification one on one: climate zone, glazing configuration, opening sizes, and compliance path. PINKYS produces architecturally detailed CAD drawings for every opening.

See it before you specify

The PINKYS Los Angeles Flagship is a by-appointment showroom in Vernon, CA, with Studio Steel doors and windows on display. Bring the opening dimensions. Walk the profiles, glazing options, and finishes in person before the specification is final.

Book a showroom appointment
interior steel door display at pinkys los angeles flagship

Frequently Asked Questions

The W50 TB accepts glazing up to 37 mm with a polyurethane thermal break, including triple-pane configurations within that depth. The W75 TB has a deeper profile, accepts glazing up to 58 mm with a glass-fibre reinforced polyamide thermal break, supporting deeper triple-pane assemblies and adding tilt-and-turn to the configuration set. Specify W50 TB when the W40 sightlines must be preserved and thermal compliance is required. Specify W75 TB when the glazing assembly needs more depth than the W50 TB provides, or when tilt-and-turn or large-format openings are required.
The W75 TB supports hinged windows (side-hung, top-hung, bottom-hung), tilt-and-turn windows, pivot windows (horizontal and vertical), fixed glazing, hinged doors, pivot doors, sliding doors, and bi-fold doors. Flush and overlapping aesthetic options are available within the system.
SB70 is available in W75 TB double- and triple-pane IGU configurations. The 58 mm glazing pocket accommodates triple-pane insulating glass units in addition to double-pane configurations, plus dual-pane glazing with a laminated lite; triple-pane and laminated glazing are not offered combined. Multiple glazing bead profiles are available, including rectangular, triangular, and double-L shapes in steel and aluminum. Glazing selection determines the final whole-window thermal value. See the glass options page for detail.
Studio Steel W75 TB doors ship standard with the full Rocky Mountain Hardware catalog and the range of PINKYS locks in black or brass, which can be keyed alike across multiple openings on a single project upon request. W75 TB windows specify SWF hardware. Because every unit is custom-built, PINKYS can also accommodate third-party or client-specified hardware; the door or window is fabricated to fit whatever hardware the project requires. Share hardware preferences at the specification stage.
Every Studio Steel W75 TB assembly ships with the standard eight-stage PINKYS coating system: abrasive blasting to Sa2.5 grade, degreasing and pure water rinsing, a phosphate conversion layer, a cathodic E-coat primer, TIGER electrostatic powder coating and curing, two-pass pre-paint sanding, the PPG Tetrafluoro fluorocarbon topcoat, and final curing and packaging. Color is applied at the topcoat stage and confirmed at specification.
Lead time is 12 to 15 weeks from approved shop drawings. The Studio Steel team produces architecturally detailed CAD drawings for each opening and coordinates the shop drawing review and approval process.
Yes. The Studio Steel team provides project-specific NFRC certified data, finish specifications, hardware documentation, and CAD drawings for each opening. Share the project address, climate zone, opening sizes, and compliance path.
Thermally broken dual single casement steel window, 1V 3H grid, cold-rolled steel, black, dual pane Low-E glass
install of steel single casement window on job site

Specify W75 for Your Project

Share the opening dimensions, configuration, and glazing requirements. PINKYS produces architecturally detailed CAD drawings and works through the specification one on one. The PINKYS Studio Steel team handles the rest.

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