W40 Steel Profile – Zen Doors & Windows Skip to main content
Textured golden background suggesting warmth, luxury, and elegance, enhancing the theme of bespoke architectural design.

W40 Steel Profile

Sleek black steel-framed door partially open, revealing a stylish interior with dark shelving and white decor accents.

W40 Solid Hot Rolled Steel
Military – NSW

W40 Solid Steel Profiles for Modern Architecture

Textured golden background suggesting warmth, luxury, and elegance, enhancing the theme of bespoke architectural design.

Perfect for interior or exterior doors and windows, partitions or exterior façades, the W40 profile combines structural power with visual subtlety. Its clean geometry, deep shadows, and minimalist framing create a timeless aesthetic suited for premium homes, heritage restorations, and architectural showpieces.

The W40 system is our strongest most robust solid steel profile, engineered to accommodate glass thicknesses of up to 27mm, offering excellent thermal and acoustic control options.

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Refined Design. Exceptional Performance.

Textured golden background suggesting warmth, luxury, and elegance, enhancing the theme of bespoke architectural design.
  • Ottostumm W40 Solid Hot Rolled Swiss Steel Profile
  • Stepped Leg Design
  • Material thickness up to 5mm
  • Very compact profiles with minimal sight lines and depth
  • Low emissivity double glazed up to 27mm
  • Choice of different glazing beads
  • Recommended for internal or external doors or windows
  • Strongest Solid Steel Profile
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W40 solid hot rolled steel window section showing a sleek design with a double-glazed panel, featuring a dark frame and clear glass.

W40 Inside View

Cross-section of a W40 solid hot rolled steel frame with glass panel, featuring a sleek black finish for architectural applications.

W40 Outside View

MAXIMUM SIZES W40 Solid Steel
DOOR / WINDOW TYPE HEIGHT (mm) WIDTH (mm)
*Fixed Window *5500 *5500
Awning Window 2400 900
Casement Window 2450 900
Hinge Door 2450 900
Internal Cavity/Barn Sliding Door 3600 1500
Pivot Doors NA NA
External Lift & Slide Sliding Door 3000 1200
Bifold Door 2450 1200
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  • *Larger Fixed Windows will generally be separated into multiple sections and may need to be glazed on site depending on the overall size. Details will always be confirmed on our CAD shop drawings.
  • Multipoint locks are required for W40 doors when the door is higher than 2450mm
  • Awning Windows are recommended for windows smaller than 1.2 sqm
  • Single Glazed Door Weight: 20kg-30kg per sqm depending on design
  • Double Glazed Door Weight: 40-50kg per sqm depending on design
Line drawing of a W40 hot rolled steel cross-section featuring a hinged design and two brackets at the bottom, showcasing structural detail.
Technical drawing of W40 solid hot rolled steel profiles, showcasing multiple shapes, dimensions, and precise measurements.
Black steel-framed glass doors open into a contemporary interior, showcasing a mix of natural light and sleek design elements.
Black steel-framed windows open to a sunny garden, featuring a lawn and a white picket fence, framed by marbled interior walls.
Black steel-framed glass doors with vertical lines open to a modern kitchen, showcasing a minimalist design and natural light.
Modern living room featuring a stone wall, arched steel-framed window, stylish coffee table, and vibrant plants outside.

Steel Frames
Ascot – QLD

Technical drawing of W40 solid hot rolled steel door design, featuring arched top, divided lites, and detailed measurements.

Explore the refined structure and engineered strength of our W40 Solid Hot Rolled Steel Series. Each cross-section reveals the craftsmanship, durability, and architectural precision that define every W40 steel door and window.

Download Full Specifications
Arch-shaped steel door with a central vertical handle, featuring a sleek, minimalist design in a dark finish against a light background.
Bespoke arched steel door with a sleek black frame, featuring large glass panels and a modern handle, partially open.
1Lite Arch
Modern rectangular steel door with a minimalist design, featuring a dark frame and a central handle against a grey panel.
Bespoke black steel double door partially open, featuring large glass panels and simple handles, showcasing modern design.
1Lite Square
Arched black steel window with a central crossbar, featuring clear glass panes, emphasising minimalist elegance and craftsmanship.
Arched black steel door with a glass panel, featuring a sleek design and open wing, showcasing modern architectural elegance.
2Lite Arch
Black steel-framed window featuring an arched design with a central vertical bar, showcasing a minimalist aesthetic and ample glass area.
Bespoke steel door design featuring a large arch frame with a partially open door, showcasing sleek lines and a minimalist aesthetic.
3Lite Arch
A sleek black steel-framed door featuring three square glass panels arranged vertically, with two central handles.
Bespoke black steel door with three vertical glass panels, partially open, illustrating modern design and craftsmanship.
3Lite Square
Arched steel-framed window featuring a four-lite design and a central handle, with a textured grey background.
Arch-shaped black steel door with glass panels, featuring a side panel design and sleek handles, showcasing a modern aesthetic.
4Lite Arch
Bespoke black steel-framed window with four panels, featuring a central handle and a sleek, minimalist design.
Bespoke steel door design featuring a black frame with four square glass panels, illustrating a modern open layout.
4Lite Square
Arched steel door with five rectangular glass panes, framed in dark steel, featuring sleek black handles.
Arched steel door in black frame with five glass panels, one door partially open, showcasing a modern design aesthetic.
5Lite Arch
Arched steel window featuring six panes, a central vertical divider, and a sleek handle, finished in a dark, elegant colour.
Arched steel door design with a minimalist layout, featuring a black frame and glass panels, partially open to showcase the entryway.
6Lite Arch

Explore our range of custom steel door designs, built for strength, security, and everyday performance. Each design is manufactured in-house with precise detailing, durable finishes, and solid construction, delivering reliable protection without compromising style.

View All Steel Door Designs

Our W40 Solid Hot Rolled Steel Products

Textured golden background suggesting warmth, luxury, and elegance, enhancing the theme of bespoke architectural design.

Crafted for lasting performance, each profile showcases superior rigidity, elegant sightlines, and a timeless architectural presence — making the W40 series ideal for high-end doors, windows, and façades that demand both durability and distinction.