Thermal Window Wall
- MATERIAL
- Cold Rolled Thermally Broken Profile
- Finish Options
- Standard, Patina and Custom Colors
- Sizing
- Depends on product configuration
- Installation
- Nail Flange, Mounting Tabs or Through the Frame
What Sets it Apart
Authentic Steel Construction
True steel frame and sash with 1 5/8″ profiles deliver slim sightlines and maximum glass area.
Superior Weather Sealing
Dual silicone seals with GREENGUARD Gold certification provide exceptional protection and energy efficiency.
Expansive Sizing
Configure windows up to 46″ × 144″ with no restrictions on mulling for dramatic wall systems.
Premium Glass Options
Structural silicone glazing with dual or triple silver Low-E coatings and argon fill for optimal performance.
At a Glance
- Custom colors at no additional fee with 4-6 week lead time
- Multiple installation methods: nail fin, base frame, or block frame options
- Egress configurations available meeting 5.7 sq ft minimum standards
- Alarm sensor prep and WOCD (sash limiter) available for enhanced security
- Altitude-adjusted glazing and specialty coatings for unique applications
- Extensive decorative glass options including Reed, acid etched, and switch glass
Why Steel?
Timeless Aesthetic & Bespoke Customization
Handmade by skilled artisans, steel windows and doors carry an architectural authority that mass-produced materials simply cannot replicate. Every piece is crafted to exact specifications — any color, any configuration, any opening geometry — making it a truly bespoke product built for the project, not adapted from a catalogue. That level of craftsmanship is visible in the finished result and felt every time you open and close it — the weight, the precision, the solidity that only a handmade product can deliver. For homeowners, architects, and builders alike, that is a difference you notice on day one and continue to appreciate for decades.
Slim Profiles & Expansive Views
Steel’s inherent strength allows for far slimmer frames than wood or aluminum, both of which need considerably more bulk to achieve the same structural performance. The result is more glass, more natural light, and cleaner, less interrupted views — a difference that is immediately noticeable and one that meaningfully changes how a space looks and feels to live and work in.
Strength, Security & Fire Performance
Steel’s inherent strength allows for far slimmer frames than wood or aluminum, both of which need considerably more bulk to achieve the same structural performance. The result is more glass, more natural light, and cleaner, less interrupted views — a difference that is immediately noticeable and one that meaningfully changes how a space looks and feels to live and work in.
Longevity & Generational Durability
Properly specified steel windows and doors will last 50–100+ years, far outlasting wood, which warps, rots, and swells with moisture and temperature change. For homeowners, this means freedom from the disruption and cost of repeated repair and replacement — and for architects and builders, it means specifying a product that will still perform and look right decades after the project is complete.
Whole-Life Value
The upfront cost of handmade steel reflects hours of skilled craftsmanship and materials built to last generations — and when assessed against the cumulative cost of maintaining and replacing wood or aluminum alternatives, the case becomes clear. Aluminum may appear cost-competitive initially, but it lacks the lifespan, structural credentials, and bespoke quality that steel delivers over the long term. Maintenance demands are minimal and the enduring contribution to a building’s character and value is something no cheaper material can offer. Steel is not the expensive option — it is the intelligent one.
At a Glance
- Custom colors at no additional fee with 4-6 week lead time
- Multiple installation methods: nail fin, base frame, or block frame options
- Egress configurations available meeting 5.7 sq ft minimum standards
- Alarm sensor prep and WOCD (sash limiter) available for enhanced security
- Altitude-adjusted glazing and specialty coatings for unique applications
- Extensive decorative glass options including Reed, acid etched, and switch glass
Product Visualizer
Product Details
Frame
Frame depth
- Varies based on product type, please see specific product page
Frame Series
- Varies based on product type, please see specific product page
- Stainless Steel Stucco stops available upon request on the 910 Series only
Mullings
- Height of Mulled unit may impact depth of the Mull Post; contact Euroline for more options
- Location, orientation, and exposure of a Mulled unit on a jobsite may impact Mulling options and glass size; contact Euroline for more information
To the Floor Condition
- Height of bottom rail is 1 5/32” for a Fixed Window
- Optional High base rail is 1 7/8” tall
Shapes Available
- Square/Rectangle
- Round
- Raked
- Eyebrow
- Ellipse
- Scalloped
- Gothic
Sash
Door Panel
N/A
Installation
Varies based on window or door type; please review specific product type
Size Limitations
- Maximums
- Depends on specific product configuration
- 70 sq. ft. max per panel factory glazed
- 100 sq. ft. max per panel field glazed
- Typically, units over 85 square feet are broken into multiple (mulled) units however if preferred to remain as a single unit the following costs apply:
- Over 85 square feet incurs a 10% handling fee
- Over 100 square feet incurs a 15% handling fee
- Over 150 square feet requires engineering approval
- IGU selection may alter square footage maximums, consult Euroline for more information
- For oversize requests, please submit them for engineering evaluation and approval. Glazed units over 70 sq ft may require field glazing.
Performance
- NAFS Performance rating is based on the lowest rated product in the Window Wall configuration.
- NFRC rating is based on individual product type.
Available Finishes
Carbon Black
Rustic Bronze
Euro Bronze
Statue Bronze
Phantom Grey
Spring Grey
Old Steel
Gun Metal
Weathered Bronze
Weathered Brass
Antique Brass
Custom Color Information
- Lead Time
- 4-6 weeks from approval
- Additional Fee
- No additional charge for custom colors
- Approval Process
- Must be approved before order enters production
Glazing Profiles
Hardware
N/A
Screens
Glass
Triple Pane
Download Technical Documents
Access comprehensive technical specifications, installation guides, CAD drawings, and product data sheets.
For questions or custom specifications, please contact our technical support team.
