FG/FT451 2″ x 4-1/2″ for 1″ Glass

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FG/FT451 2″ x 4-1/2″ for 1" Glass

Product Description

Trulite Glass & Aluminum Solutions’ FG/FT451 Storefront is engineered to provide simple fabrication, easy assembly and problem free installations in an easy to use, economical front glazed framing system. The 2″ x 4-1/2″ front glazed system is available in a screw spline and shear clip assembly and is ideal for single span thermal or non-thermal storefront applications. The FT451 can be glazed with 1″ insulated glazing infill. Trulite’s 200, 300 & 500 entrances are easily integrated into this system.

Applications

The FG/FT451 Front Set Storefront System is designed for commercial, retail, and institutional projects that require front-set glazing and strong structural performance:

  • Retail and office storefronts – Provides a contemporary front-set look, ideal for retail façades and office entrances.
  • Schools, municipal, and civic buildings – Offers reliable performance for public facilities with moderate structural requirements.
  • Healthcare, hospitality, and mixed-use developments – Suitable for entrances and divisions in high-traffic environments where aesthetics and performance matter.
  • New construction and retrofits – Compatible with Trulite entrances and curtain walls for seamless integration into existing or new façades.

Features

  • 2″ × 4-1/2″ Front-Set Framing – Engineered for 1″ insulating glass with a flush-glazed, front-set profile.
  • Non-Thermal (FG451) and Thermal (FT451) Options – Choose the design that best fits energy efficiency requirements.
  • Exterior Glazing – Ensures proper installation and performance under demanding conditions.
  • High-Performance Sill Flashing – Enhances water resistance and long-term durability.
  • #14 Hex Head Fasteners – Concealed screws simplify assembly and improve joint integrity.
  • 1- or 2-Piece Head Receptors – Provides flexibility and ease of installation.
  • Premium Finishes – Available in Architectural Class I and II anodized coatings or AAMA 2604/2605 high-performance organic finishes.
  • Single-Source Compatibility – Designed to integrate with Trulite entrance systems, curtain walls, and glazing accessories.

Performance

  • Air Infiltration (ASTM E283) – Does not exceed 0.06 cfm/ft² at 6.24 psf static pressure.
  • Water Resistance (ASTM E331) – No uncontrolled water infiltration at 12 psf (exterior glazed).
  • Structural Performance (ASTM E330) – ±40 psf design pressure; maximum allowable deflection of L/175 or ¾″ maximum.
  • Thermal Performance (FT451) – U-value not to exceed 0.35 BTU/hr-ft²-°F (NFRC 102-2014).
  • Thermal Movement – Handles temperature swings up to 180°F (82°C) without compromising seals or structural elements.
  • Durability & Warranty – Backed by Trulite’s two-year standard manufacturer’s warranty.
  • System Integration – Works seamlessly with Trulite entrances, mullions, and accessories for a cohesive storefront solution.
Product DetailsTechnical Data
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Typical Head Detail (FG451)

Optional Head Detail with Receptor Shear Clip Assembly (FG451)

Optional Head Detail with Receptor (FG451)

Head Detail Shear Clip Assembly (FG451)

Head Detail Shear Clip Assembly (FT451)

Optional Head Detail with Receptor (FT451)

Optional Head Detail with Receptor Shear Clip Assembly (FT451)

Typical Head Detail (FT451)

Intermediate Horizontal Shear Clip Assembly (FG451)

Intermediate Horizontal (FG451)

Intermediate Horizontal (FT451)

Intermediate Horizontal Shear Clip Assembly (FT451)

Starter Sill Detail Shallow Subsill Option (FG451)

Sill Detail Hi-Performance Subsill Option Optional Shear Clip Assembly (FG451)

Sill Detail Hi-Performance Subsill Option Optional Shear Clip Assembly (FT451)

Starter Sill Detail Shallow Subsill Option (FT451)

Typical Jamb Detail (FG451)

Typical Jamb Detail (FT451)

Typical Intermediate Mullion (FG451)

Intermediate Mullion (FT451)

Door Jamb with Sidelite (FG451)

Transom Jamb with Sidelite (FG451)

Door Head Detail (FG451)

Transom Head Detail (FG451)

Outside Corner Detail (FG451)

Inside Corner Detail (FG451)

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