A video consultation for your contractor before the first window is set to ensure the entire project starts without costly mistakes.
Single Fixed Steel Window 30×30"
Availability:PreOrder
Warranty:5 Years
SKU:W-6336
Unit Size:
30"x30"
Frame Material:
Steel
Finish from Inside:
White
Finish from Outside:
White
Glass Pane Type:
Double Glass Pane
Glass Type:
Regular
Glass Spacer Bar:
Aluminum Silver
Insect Screen:
Not Included
Installation Anchors:
Included
Egress Compliant:
No
Price: $2,127.49
Lead time:14-16 weeks
Need a Quote for Your Whole Project?
- Custom-built for your exact opening
- Choose interior and exterior colors
- Select decorative glass and grid styles
- Upgrade handle and hardware finishes
- Customize configurations and opening styles
Complete Your Architectural Vision
Explore our coordinated systems designed to bring consistent performance and style to every opening in your home.
Remote Expert Installation Support Included*
*Every order over $20k includes three video consultations with our senior technicians to guide your contractor and help prevent costly installation mistakes.
Direct "SOS" calls to resolve any specific installation hurdles or technical questions instantly.
We'll guide you on how to inspect the finished work, what to look for during handover, and how to verify or fix any installation details.
A Window You Feel Every Day
Luxury Steel Windows with Smart Ventilation Control
Most steel windows in the U.S. are chosen mainly for their look. Slim Ultra gives you that ultra-premium steel aesthetic — but adds the everyday functionality that makes European windows far more comfortable to live with.
Tilt mode: fresh air, secure and rain-protected.
The sash opens slightly at the top, allowing gentle ventilation while keeping the window secure and keeping rain out. A smarter, safer way to air out the space without leaving the window fully open.
Micro-ventilation: subtle airflow, visually closed.
The window remains visually closed while still allowing a light exchange of fresh air — ideal for constant background ventilation throughout the day.
Full turn: maximum ventilation and easy cleaning.
The sash opens fully inward, making it easy to bring in as much air as needed while also simplifying cleaning from the inside.
Fully locked: tight, sealed, and solid.
When closed, the window locks into a tight, sealed position that feels secure, solid, and properly finished.
What sets it apart:
The rare combination of ultra-luxury steel aesthetics and intelligent European ventilation, security, and everyday comfort.
Animated demonstration of a steel tilt and turn window showing tilt ventilation, micro-ventilation, and full turn opening modes.
Ultra-Slim Steel Sightlines with a Truly Architectural Look
The biggest visual advantage of steel is how little frame you need to create a striking opening. Slim Ultra is designed around exceptionally slim steel profiles that deliver one of the most refined looks available in an operable window system.
Fixed sightlines of less than 7/8″.
The visible frame stays exceptionally narrow in fixed configurations, preserving the sharp, substantial feel expected from a premium architectural product.
Operable sightlines of less than 2 1/8″.
Even with full tilt and turn operation, the system creates a remarkably lean visual impression — more glass, cleaner lines, and a lighter visual presence.
The character aluminum cannot replicate.
Steel delivers not just minimalism, but a very specific kind of elegance that makes the window feel slimmer, sharper, and more elevated from the very first glance.
The result:
A slimmer, more expensive-looking window aesthetic with the unmistakable character of real architectural steel.
Strength That Keeps the Frames Slim at Larger Sizes
One of the most compelling advantages of Slim Ultra is not just that the frames are slim — it is that they remain remarkably slim even as the window size grows. That combination is what makes high-end steel so special.
Larger openings, no visual bulk.
Because steel is exceptionally strong, Slim Ultra can support more ambitious dimensions while preserving the clean, elegant sightlines that would be much harder to maintain in many other operable window categories.
More scale without compromising refinement.
The result is a window that delivers more scale without introducing the heavier visual bulk that often comes with larger openings — giving architects and homeowners more design freedom.
Spaces that feel brighter, sharper, and more elevated.
Larger-format glass areas help interiors feel more open and connected to the outside — from both inside and out.
What you gain:
Larger-format openings with ultra-slim steel frames that still look refined, light, and architecturally precise.
Advanced Thermal Comfort in a True Steel Window System
Steel is often associated with beauty and strength first — but Slim Ultra is not a traditional non-thermal steel window. It is built with an advanced thermal break system that brings modern comfort into a category historically known more for aesthetics than insulation.
Advanced thermal break construction.
The system is engineered with a thermal break that significantly reduces heat transfer through the steel frame — making it suitable for the performance standards expected in a premium contemporary home.
Double- or triple-pane insulated glass with Low-E and argon.
When paired with advanced glazing options, the combination of slim steel profiles and thermal engineering helps support better year-round comfort while preserving the refined look.
Performance without sacrificing aesthetics.
You can enjoy the elegance of steel without giving up the comfort standards expected in a serious modern residence.
What you feel:
The beauty of ultra-slim steel, supported by the thermal comfort needed for modern living.
Design Freedom, Down to the Details
A window at this level should do more than perform beautifully — it should feel fully aligned with the architecture around it. Slim Ultra gives you the freedom to shape the visual character of the window through the details that define the final design impression.
Full RAL color palette.
Choose from a wide range of RAL colors to create anything from a soft, understated look to a darker, more dramatic steel statement.
Grid options for every architectural language.
Grid options add another layer of flexibility, helping the window feel more classic, more industrial, or more distinctly architectural depending on the composition of the home.
Handle styles and finishes.
Handle styles and finishes can be selected to better match the interior language of the space — whether the goal is a cleaner minimal expression or a more decorative high-end look.
The result:
A true luxury steel window system you can shape around the architecture with greater precision and a more personal design expression.
Real Homes, Real Comfort — See Our Windows in Action
Product Information. Single Fixed Steel Window 30×30"
Unit Size30"×30"
Rough Opening (W × H)30¾" × 30¾"
Clear Opening (W × H)24⅞" × 26⅝"
Frame MaterialSteel
Frame SystemBalance Pro
Finish from InsideWhite
Finish from OutsideWhite
Glass Pane TypeDouble Glass Pane
Glass TypeRegular
Glass Spacer BarAluminum Silver
Construction Depth2 3/4"
Color of Core and GasketWhite core, black gasket
Thermal Coefficient UwUw=0.19
Solar Heat Gain CoefficientSHGC=0.27
Warranty5-Year Warranty
Estimated Lead Time9 - 11 weeks
Glazing Specs5/32" Low-E | 15/32" Argon | 5/32" Tempered
Egress CompliantNo
Window TypeSingle
Panel ConfigurationFixed
Weight37.3 lbs
Not Sure Where to Start or Afraid of a Costly Mistake?
Call The Measurement Service!
DiVetro's measurement service helps you get everything right before you order new windows, doors or custom glazing.
During the visit our specialist will:
- Take precise on-site measurements of every opening
- Check installation conditions and possible configurations
- Recommend the best technical solutions and configurations
- Align options with your home, design and budget
So you can make decisions with confidence, not guesswork.
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