Storefront Framing

Trifab® VersaGlaze® 451/451T Framing System

Trifab® VersaGlaze® Framing System is built on the proven and successful Trifab® Framing platform – with all the versatility its name implies. Designed for performance and unmatched fabrication flexibility, the Trifab® VersaGlaze® Framing System can be used on almost any project. Trifab® VersaGlaze® Framing System also offers a pre-glaze option for the existing center set screw spline assembly application, available on non-thermal, thermal and ultra-thermal frame types. Pre-glaze units can be completely fabricated and glazed in the shop, minimizing job-site costs and enhancing field-installed quality.

  • 2″ (50.8mm) sightline
  • 4-1/2″ (114.3mm) depth
  • High-thermal performance
  • Front, center, back or multi-plane glass applications
  • Blast mitigation (451T), hurricane resistance
  • Structural silicone glazed (SSG) options, pre-glazed options
  • Hurricane impact tested on shutter application only
  • 4-1/2″ (114.3) deep with a 2″ (50.8) sightline
  • Front, center, back or multi-plane glass applications
  • Flush glazed from either the inside or outside
  • Screw spline, shear block, stick or type-B fabrication
  • Screw spline pre-glaze option
  • SSG / weather seal option
  • Isolock® lanced and debridged thermal break option
  • Infill options up to 1-1/8″ (28.6) thickness
  • Anodized finishes in four choices
  • Painted finishes in standard and custom choices

Optional Features

  • Acoustical rating per AAMA 1801 and ASTM E 1425
  • Project specific U-factors (see Thermal Charts in Architectural Detail Manual)
  • Profit$Maker® plus die sets available

Pre-glaze option features*

  • Tested solution with installation instructions enables shop fabrication and reduces field labor
  • Vertical mullions with 1/4″ reveal provide uniform aesthetics
  • High-performance sill flashing and clip design reduce installation time
  • Composite end jamb allows for ease of installation of the last bay
  • Trifab® 451/451T/451UT Framing Systems provide the right thermal performance for your project
  • View our pre-glaze option flyer here

*For Trifab® 451/451T/451UT Framing System center set screw spline assembly applications only

Product Applications

  • Storefront, ribbon window or punched openings
  • Single span
  • Integrated entrance framing allowing Kawneer standard entrances or other specialty entrances to be incorporated
  • Kawneer windows are easily incorporated

Thermal Technology

Find out more here.

Blast Resistant

Find out more here.

Hurricane Resistant

Find out more here.

Related Product Approvals

Find out more here.

Trifab® VersaGlaze® 451/451T Framing System - Architectural Detail Manual
23 MB
Trifab® VersaGlaze® 451/451T Framing System - Flyer
2 MB
Storefront Framing Product Selection Guide
571 KB
Trifab® VersaGlaze® 451 Framing Systems Pre-Glaze Option Flyer
316 KB
Florida Product Approval & Texas Dept. of Insurance Evaluation Documents
274 KB
Trifab® VersaGlaze® 451 Framing System - Product Green Guide
193 KB
Trifab® VersaGlaze® 451T Framing System - Product Green Guide
242 KB
Trifab® Framing Systems and Storefront Framing Systems - EPD
1 MB
Trifab® VersaGlaze® 450/451/451T and Trifab® 601T Framing Systems - DECLARE Label
891 KB
Trifab® VersaGlaze® 450/451 and Trifab® 601 Framing Systems
532 KB
Trifab® VersaGlaze® 451T and Trifab® 601T Framing Systems - MTS
483 KB
Finishes Brochure
5 MB
Finishes Information - Architectural Detail Manual
238 KB
Anodize Finishes - Color Chart
82 KB
Liquid Paint - Color Chart - Permadize®
1 MB
Liquid Paint - Color Chart - Permafluor™
350 KB
Powder Paint - Color Charts - Permacoat™
127 KB
Trifab® VersaGlaze® 451 Framing System - English
Trifab® VersaGlaze® 451T Framing System - English
Trifab® VersaGlaze® 451 Framing System - French
Trifab® VersaGlaze® 451 Framing System - Spanish US

Trifab® VersaGlaze® 451/451T Framing System (Thermal) CENTER PLANE

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Typical Framing Details (Outside Glazed)
Optional Framing Details (Outside Glazed) "Glass Stops Up"
Typical Framing Details (Inside Glazed)
Pre-Glazed Option Details - (Outside Glazed)
Pre-Glazed Option Details - (Outside Glazed) - "Glass Stops Up"
Pre-Glazed Option Details - (Inside Glazed)
Pre-Glazed Optional Vertical Details
Optional Vertical Mullions
Typical Corner Details
Head and Jamb Receptors
GLASSvent Window in Typical Framing Details (Outside Glazed)
GLASSvent Window in Optional Framing Details (Outside Glazed) "Glass Stops Up"
GLASSvent Window in Typical Framing Details (Inside Glazed)
8225TL Window in Typical Framing Details (Outside Glazed)
8225TL Window in Optional Framing Details (Outside Glazed) "Glass Stops Up"
8225TL Window in Typical Framing Details (Inside Glazed)
Optional 4-1/2" x 4-1/2" Head, Horizontal and Sill Details
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptor and Splice Sleeve

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Typical Framing Details (Outside Glazed)
Optional Framing Details (Outside Glazed "Glass Stops Up")
Optional Framing Details (Inside Glazed)
Optional Vertical Mullions
Corners Details
Head and Jamb Receptors
GLASSvent Window in Typical Framing Details (Outside Glazed)
GLASSvent Window in Optional Framing Details (Outside Glazed "Glass Stops Up")
GLASSvent Window in Optional Framing Details (Inside Glazed)
8225TL Window in Typical Framing Details (Outside Glazed)
8225TL Window in Optional Framing Details (Outside Glazed "Glass Stops Up")
8225TL Window in Optional Framing Details (Inside Glazed)
4-1/2" x 4-1/2" Head, Horizontal & Sill Details
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptors and Splice Details

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Typical Framing Details (Outside Glazed) - Std Receptor
Typical Framing Details (Outside Glazed) - Lightweight Receptor
Typical Framing Details (Outside Glazed) - Unequal Leg Head/Sill Receptor
Typical Framing Details (Outside Glazed) - Std Receptor Stops Up
Typical Framing Details (Outside Glazed) - LW Receptor Stops Up
Typical Framing Details (Inside Glazed) - Std Receptor
Typical Framing Details (Inside Glazed) - Lightweight Receptor
Optional Vertical Mullions - Standard Receptor
Optional Vertical Mullions - Lightweight Receptor
Typical Corner Details - Std Receptor
Typical Corner Details - Lightweight Receptor
GLASSvent Details with Typical Framing Details (Outside Glazed) - Std Receptor
GLASSvent Details with Typical Framing Details (Outside Glazed) - LW Receptor
GLASSvent Details with Typ. Framing (Outside Glazed) - Std Receptor Stops Up
GLASSvent Details with Typ. Framing (Outside Glazed) - LW Receptor Stops Up
GLASSvent Details with Typical Framing Details (Inside Glazed) - Std Receptor
GLASSvent Details with Typical Framing Details (Inside Glazed) - LW Receptor
8225TL Window Details with Typ. Framing Details (Outside Glazed) - Std Receptor
8225TL Window Details with Typ. Framing Details (Outside Glazed) - LW Receptor
8225TL Window Details with Typ. Framing (Outside Glazed) - Std Receptor Stops Up
8225TL Window Details with Typ. Framing (Outside Glazed) - LW Receptor Stops Up
8225TL Window Details with Typ. Framing Details (Inside Glazed) - Std Receptor
8225TL Window Details with Typ.Framing Details (Inside Glazed) - LW Receptor
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptor, Strap Anchors and Splice Sleeves

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Center Hung with COC
Offset Pivot/Butt Hung with Surface Closer
Offset Pivot/Butt Hung with SA COC
Center Hung with COC (Open Back Frame)
Offset Pivot/Butt Hung with Surface Closer (Open Back Frame)
Offset Pivot/Butt Hung with SA COC (Open Back Frame)

Trifab® VersaGlaze® 451/451T Framing System (Thermal) FRONT PLANE

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Typical Framing Details (Outside Glazed)
Typical Framing Details (Inside Glazed)
Expansion Mullions
Typical Corner Details
Head and Jamb Receptors
GLASSvent Window in Typical Framing Details (Outside Glazed)
GLASSvent Window in Typical Framing Details (Inside Glazed)
8225TL Window in Typical Framing Details (Outside Glazed)
8225TL Window in Typical Framing Details (Inside Glazed)
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptor and Splice Sleeve

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Typical Framing Details (Outside Glazed)
Typical Framing Details (Inside Glazed)
Vertical Expansion Mullions
Typical Corners Details
Head and Jamb Receptors
GLASSvent Window in Typical Framing Details (Outside Glazed)
GLASSvent Window in Typical Framing Details (Inside Glazed)
8225TL Window in Typical Framing Details (Outside Glazed)
8225TL Window in Typical Framing Details (Inside Glazed)
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptors and Splice Sleeves

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Typical Framing Details (Outside Glazed) - Std Receptor
Typical Framing Details (Outside Glazed) - Lightweight Receptor
Typical Framing Details (Outside Glazed) - Std Receptor Stops Up
Typical Framing Details (Inside Glazed) - Std Receptor
Typical Framing Details (Inside Glazed) - Lightweight Receptor
Typical Framing Details (Inside Glazed) - Std Receptor 2-color option
Typical Corner Details - Std Receptor
Typical Corner Details - Lightweight Receptor
GLASSvent Details with Typical Framing Details (Outside Glazed) - Std Receptor
GLASSvent Details with Typical Framing Details (Outside Glazed) - LW Receptor
GLASSvent Details with Typical Framing Details (Outside Glazed) - Std Receptor Stops Up
GLASSvent Details with Typical Framing Details (Inside Glazed) - Std Receptor
GLASSvent Details with Typical Framing Details (Inside Glazed) - LW Receptor
8225TL Window Details with Typ. Framing Details (Outside Glazed) - Std Receptor
8225TL Window Details with Typ. Framing Details (Outside Glazed) - LW Receptor
8225TL Window Details with Typ. Framing Details (Outside Glazed) - Std Receptor Stops Up
8225TL Window Details with Typ. Framing Details (Inside Glazed) - Std Receptor
8225TL Window Details with Typ. Framing Details (Inside Glazed) - LW Receptor
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptor, Strap Anchors and Splice Sleeves

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Typical Framing Details (Outside Glazed)
Typical Framing Details (Inside Glazed)
"2 Color Option" Framing Details (Outside Glazed)
"2 Color Option" Framing Details (Inside Glazed)
1/4" Infill Adaptor Details
Typical Corner Details
Stool Trims, Strap Anchors and Splice Sleeves

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Typical Framing Details (Inside Glazed)
Typical Framing Details "SSG" (Inside Glazed)
Typical Framing Details "Weatherseal" (Inside Glazed)
Typical Corner Details
Head and Jamb Receptors
Optional Glazing Adaptors
Stool Trims and Brake Metal Adaptor

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Center Hung with COC
Offset Pivot/Butt Hung with Surface Closer
Offset Pivot/Butt Hung with SA COC

Trifab® VersaGlaze® 451/451T Framing System (Thermal) BACK PLANE

Download All
Typical Framing Details (Outside Glazed)
Typical Framing Details (Inside Glazed)
Expansion Mullions
Typical Corner Details
Head and Jamb Receptors
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptor and Splice Sleeve

Download All
Typical Framing Details (Outside Glazed)
Typical Framing Details (Inside Glazed)
Expansion Mullions
Typical Corner Details
Head and Jamb Receptors
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptor and Splice Sleeve

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Typical Framing Details (Outside Glazed) with "Standard Receptor"
Typical Framing Details (Outside Glazed) with "Lightweight Receptor"
Typical Framing Details (Inside Glazed) with "Standard Receptor"
Typical Framing Details (Inside Glazed) with "Lightweight Receptor"
Typical Corner Details with "Standard Receptor"
Typical Corner Details with "Lightweight Receptor"
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptor, Strap Anchors and Splice Sleeves

Download All
Center Hung with COC
Offset Pivot/Butt Hung with Surface Closer
Offset Pivot/Butt Hung with SA COC

Download All
Typical Framing Details (Outside Glazed)
Typical Framing Details (Inside Glazed)
Expansion Mullions
Typical Corner Details
Head and Jamb Receptors
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptor and Splice Sleeve

Trifab® VersaGlaze® 451/451T Framing System (Thermal) MULTI- PLANE

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Transition Mullions

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Transition Mullion with "Standard Receptor"
Transition Mullion with "Lightweight Receptor"

Trifab® VersaGlaze® 451/451T Framing System (Thermal) MULTI-PLANE

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Transition Mullions

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Transition Mullions

Trifab® VersaGlaze® 451/451T Framing System (Non Thermal) CENTER PLANE

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Typical Framing Details (Outside Glazed)
Optional Framing Details (Outside Glazed) "Glass Stops Up"
Typical Framing Details (Inside Glazed)
Pre-Glazed Option Details - (Outside Glazed)
KCDC040A0521_Pre-Glazed Option Details - (Outside Glazed) - "Glass Stops Up"
Pre-Glazed Option Details - (Inside Glazed)
Pre-Glazed Optional Vertical Details
Optional Vertical Mullions
Optional 4-1/2" Horizontal and Sidelite Bases
Typical Corner Details
Head and Jamb Receptors
GLASSvent Details with Typical Framing Details (Outside Glazed)
GLASSvent Details with Optional Framing Details (Outside Glazed) "Glass Stops Up"
GLASSvent Details with Typical Framing Details (Inside Glazed)
8225TL Window Details with Typical Framing Details (Outside Glazed)
8225TL Window Details with Optional Framing Details (Outside Glazed) "Glass Stops Up"
87225TL Window Details with Typical Framing Details (Inside Glazed)
Optional 4-1/2" x 4-1/2" Head, Horizontal and Sill Details
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptor and Splice Sleeve
Framing Details for Curved openings

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Typical Framing Details (Outside Glazed)
Optional Framing Details (Outside Glazed) "Glass Stops Up"
Typical Framing Details (Inside Glazed)
Optional Vertical Mullions
Optional 4-1/2" Horizontal and Sidelite Bases
Typical Corner Details
Head and Jamb Receptors
GLASSvent Window in Typical Framing (Outside Glazed)
GLASSvent Window in Optional Framing (Outside Glazed) "Glass Stops Up"
GLASSvent Window in Typical Framing (Inside Glazed)
8225TL Window in Typical Framing (Outside Glazed)
8225TL Window in Optional Framing (Outside Glazed) "Glass Stops Up"
8225TL Window in Typical Framing (Inside Glazed)
Optional 4-1/2" x 4-1/2" Head, Horizontal and Sill Details
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptor and Splice Sleeve

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Typical Framing Details (Outside Glazed) with "Standard Receptor"
Typical Framing Details (Outside Glazed) with "Lightweight Receptor"
Typical Framing Details (Outside Glazed) with "Unequal Leg Receptor at Head and Sill"
Optional Framing Details (Outside Glazed) "Stops Up" with "Standard Receptor"
Optional Framing Details (Outside Glazed) "Stops Up" with "Lightweight Receptor"
Typical Framing Details (Inside Glazed) with "Standard Receptor"
KCDC042A0725_Typical Framing Details (Inside Glazed) with ^dLightweight Receptor^d
Optional Vertical Mullion Details with "Standard Receptor"
Optional Vertical Mullion Details with "Lightweight Receptor"
Typical Corner Details with "Standard Receptor"
Typical Corner Details with "Lightweight Receptor"
GLASSvent Wdw - "Std Receptor" Typical Frame (Outside Glazed)
GLASSvent Wdw - "Light Receptor" Typical Frame (Outside Glazed)
GLASSvent Wdw - "Std Receptor" Optional Frame (Outside Glazed) "Stops Up"
GLASSvent Wdw - "Light Receptor" Optional Frame (Outside Glazed) "Stops Up"
GLASSvent Wdw - "Std Receptor" Typical Frame (Inside Glazed)
GLASSvent Wdw - "Light Receptor" Typical Frame (Inside Glazed)
8225TL Window - "Std Receptor" Typical Frame (Outside Glazed)
8225TL Window - "Light Receptor" Typical Frame (Outside Glazed)
8225TL Window - "Std Receptor" Optional Frame (Outside Glazed) "Stops Up"
8225TL Window - "Light Receptor" Optional Frame (Outside Glazed) "Stops Up"
8225TL Window - "Std Receptor" Typical Frame (Inside Glazed)
8225TL Window - "Light Receptor" Typical Frame (Inside Glazed)
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptor, Strap Anchors and Splice Sleeves

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Center Hung with COC
Offset Pivot/Butt Hung with Surface Closer
KCDC044A0306_Offset Pivot/Butt Hung with SA COC
Center Hung with COC (Open Back Frame)
Offset Pivot/Butt Hung with Surface Closer (Open Back Frame)
Offset Pivot^fButt Hung with SA COC (Open Back Frame)

Trifab® VersaGlaze® 451/451T Framing System (Non Thermal) FRONT PLANE

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Typical Framing Details (Outside Glazed)
Typical Framing Details (Inside Glazed)
Expansion Mullions
Typical Corner Details
Head and Jamb Receptors
GLASSvent Window in Typical Framing (Outside Glazed)
GLASSvent Window in Typical Framing (Inside Glazed)
8225TL Window in Typical Framing (Outside Glazed)
8225TL Window in Typical Framing (Inside Glazed)
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptor and Splice Sleeve

Download All
Typical Framing Details (Outside Glazed)
Typical Framing Details (Inside Glazed)
Expansion Mullions
Typical Corner Details
Head and Jamb Receptors
GLASSvent Window in Typical Framing (Outside Glazed)
GLASSvent Window in Typical Framing (Inside Glazed)
8225TL Window in Typical Framing (Outside Glazed)
8225TL Window in Typical Framing (Inside Glazed)
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptor and Splice Sleeve

Download All
Typical Framing Details (Outside Glazed) with "Standard Receptor"
Typical Framing Details (Outside Glazed) with "Lightweight Receptor"
Optional Framing Details (Outside Glazed) with "Standard Receptor"
Typical Framing Details (Inside Glazed) with "Standard Receptor"
Typical Framing Details (Inside Glazed) with "Lightweight Receptor"
"Two Color Option" Framing Details (Inside Glazed) with "Standard Receptor"
Typical Corner Details with "Standard Receptor"
GLASSvent Wdw - "Standard Receptor" Typical Framing (Outside Glazed)
GLASSvent Wdw - "Lightweight Receptor" Typical Framing (Outside Glazed)
GLASSvent Wdw - "Standard Receptor" Typical Framing (Outside Glazed)"Stops Up"
GLASSvent Wdw - "Standard Receptor" Typical Framing (Inside Glazed)
GLASSvent Wdw - "Lightweight Receptor" Typical Framing (Inside Glazed)
8225TL Window - "Standard Receptor" Typical Framing (Outside Glazed)
8225TL Window - "Lightweight Receptor" Typical Framing (Outside Glazed)
KCDC042B1620_8225TL Window - "Standard Receptor" Typical Framing (Outside Glazed)"Stops Up"
8225TL Window - "Standard Receptor" Typical Framing (Inside Glazed)
KCDC042B1820_8225TL Window - ^dLightweight Receptor^d Typical Framing (Inside Glazed)
Optional Glazing Adaptors
Stool Trims, Brake Metal Adaptor, Strap Anchors and Splice Sleeves

Download All
Typical Framing Details (Outside Glazed)
Typical Framing Details (Inside Glazed)
"2 Color Option" Framing Details (Outside Glazed)
"2 Color Option" Framing Details (Inside Glazed)
1/4" Infill Adaptor Details
Typical Corner Details
Stool Trims, Strap Anchors and Splice Sleeves

Download All
ypical Framing Details (Inside Glazed)
Typical Framing Details "SSG" (Inside Glazed)
Typical Framing Details "Weatherseal" (Inside Glazed)
Typical Corner Details
Head and Jamb Receptors
Optional Glazing Adaptors
Stool Trims

Download All
KCDC044B0103_Center Hung with COC
Offset Pivot/Butt Hung with Surface Closer
Offset Pivot/Butt Hung with SA COC

Trifab® VersaGlaze® 451/451T Framing System (Non Thermal) BACK PLANE

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Typical Framing Details (Outside Glazed)
Typical Framing Details (Inside Glazed)