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Series CF451 Storefront System

Series CF451 is a commercial flush glazed system for exterior glazing ground floor applications or interior glazing when used as a low rise window wall system. The system is designed for the vertical mullions and filler plates to run through for optimum strength. All Cardinal Commercial Products framing is mechanically jointed using self-tapping screws into integral splines extruded within the body of the section. Jointing is by butt joints with applied sealant to protect against water egress and to reduce air infiltration.



  • Sightline 2” x 4½” for 1” glazing infill
  • Designed for non-thermal applications. For non-thermal applications use the CF451T Series.
  • EPDM glazing gaskets
  • Shop fabrication and precision punch die fabrication for screw spline holes
  • Shop supervision and quality control
  • Ladder assembly for transportation to job site for quicker installation
  • Heavy duty mullions and/or steel reinforcement to meet high wind velocity requirements
  • Sill receptor allows for heads of structural fasteners in subsill to be sealed prior to installing ladder panels
  • Framing accepts Series 200N, 300M and 500W series entrance doors, as well as a full line of all glass entrances


CF451 (Non-Thermal Applications)

Exterior Glazed

  • Design Pressure = +/- 35 PSF
  • Water @ 15PSF
  • Air infiltration at 6.24 PSF < .06 CFM

Interior Glazed

  • Design Pressure = +/- 35 PSF
  • Water @ 15PSF
  • Air infiltration at 6.24PSF < .06 CFM


Specifications, installation instructions (including structural anchor charts based on wind loads and surface type), and test reports are all available on our Technical Documentation page.


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Cardinal Commercial Products offers a comprehensive line of architectural aluminum products designed for the commercial aluminum and glass storefront and curtain wall market.


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