
City-Gates
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Commercial Door Professionals. Since 1955 we have provided architects and commercial contractors with detailed specifications and full size shop drawings. Our doors are available in galvanized steel, aluminum, stainless steel,or customer colors. We design and fabricate all types of coiling, overhead, rolling steel, insulated, ventilated, service doors, automatic reset fire-rated doors & horizontal coiling doors.
![[Cornell Iron Works]](http://64.130.11.87/mfg/c/cornell04.jpg)
Cornell Iron Works
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A quality driven ISO 9001:2000 registered rolling door company serving the non-residential construction market in North America and beyond with rolling service, insulated and fire rated doors, counter doors and grille products. Let our architectural design specialists assist you with product design, code issues, features or options or provide job specific project details and specifications.

Dynamic Closures
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Dynamic Closure's grilles and closures have been the ideal choice to secure openings for many years. Used in shopping malls, schools, food concessions, office buildings, supermarkets and pharmacies to provide security that is easy to use and takes up minimal side clearances.

QMI Security Solutions
StoreSafe® and CounterSafe® Rolling Shutters and Grilles are designed to give the utmost in security with unmatched aesthetics and visibility. Enables security with vision using punched slats, linked grilles, or Transparoll clear polycarbonate slats while maintaining a small coil-housing diameter. QMI leads the retail and pharmacy industry for door, window, and counter security.
See also: 08 3500 - Folding Doors and Grilles

City-Gates
![]()
Commercial Door Professionals. Since 1955 we have provided architects and commercial contractors with detailed specifications and full size shop drawings. Our doors are available in galvanized steel, aluminum, stainless steel,or customer colors. We design and fabricate all types of coiling, overhead, rolling steel, insulated, ventilated, service doors, automatic reset fire-rated doors & horizontal coiling doors.
![[Cornell Iron Works]](http://64.130.11.87/mfg/c/cornell04.jpg)
Cornell Iron Works
![]()
A quality driven ISO 9001:2000 registered rolling door company serving the non-residential construction market in North America and beyond with rolling service, insulated and fire rated doors, counter doors and grille products. Let our architectural design specialists assist you with product design, code issues, features or options or provide job specific project details and specifications.

Dynamic Closures
![]()
Dynamic Closure's grilles and closures have been the ideal choice to secure openings for many years. Used in shopping malls, schools, food concessions, office buildings, supermarkets and pharmacies to provide security that is easy to use and takes up minimal side clearances.

QMI Security Solutions
StoreSafe® and CounterSafe® Rolling Shutters and Grilles are designed to give the utmost in security with unmatched aesthetics and visibility. Enables security with vision using punched slats, linked grilles, or Transparoll clear polycarbonate slats while maintaining a small coil-housing diameter. QMI leads the retail and pharmacy industry for door, window, and counter security.