Chicago Metallic® 4500/ 4550 Ultraline™ 9/ 16"
Seismically approved stab-end cross tees feature a 1/4" bolt slot reveal with cleanly mitered intersections which result in a flawless and continuous line in the ceiling. Application areas include lobbies, airports, conference rooms and other high end areas.
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Application
- Product Type
- Grid suspension systems
- Performance
- Seismic
- Sectors
- Office
- GREENGUARD Gold
Product Description
Chicago Metallic® 4500 Ultraline™ 9/16" Exposed with 1/4" Reveal acoustical ceiling system is available in intermediate and heavy-duty designs, either non-fire rated and fire rated construction, and is built with HDG 30 steel. Seismically approved stab-end cross tees feature a 1/4" bolt slot reveal with cleanly mitered intersections which result in a flawless and continuous line in the ceiling. Chicago Metallic™ suspended ceiling grids are third party certified to meet ASTM standards and is listed with ICCES Evaluation Services, reference report ESR-2631 for additional information.
- Beautiful design with 1/4" bolt slot reveal, clean mitered intersections
- Fire-rated systems listed in UL assemblies
- Suitable for seismic zones A-F
- Up to 30% recycled content
- UL GREENGUARD Gold certified for low VOC emissions
- Backed by a 40 year warranty
Certifications
Health Product Declarations
UL GREENGUARD Gold
Environmental Product Declaration
Documents

Chicago Metallic 4500/ 4550 Ultraline 9/ 16" Data Sheet
Product and technical information for Chicago Metallic 4500/4550 Ultraline 9/16" grid

Chicago Metallic 4500/ 4550 Ultraline 9/ 16" Specification
Specification document for Chicago Metallic 4500/4550 Ultraline 9/16" grid

Seismic Ceiling Suspension Guide
Technical document for Chicago Metallic grid suspension in seismic applications

UL Fire Rated Assemblies for Chicago Metallic Grid Suspension Systems
Technical guide for UL fire rated assemblies utilizing Chicago Metallic grid suspension

Chicago Metallic 4500/ 4550 Ultraline 9/ 16" Data Sheet (French)
Product and technical information for Chicago Metallic 4500/4550 Ultraline 9/16" grid (French)
FAQ Block For Grid
It is a ceiling hung below the structural ceiling for room acoustics and aesthetics, where tiles and panels are housed in the ceiling grid. An acoustical ceiling grid has various benefits that include controlling sound, which is measured by the Noise Reduction Coefficient (NRC). High-performance acoustic panels from Rockfon offer the NRC needed to create healthy acoustic environments. Ceiling tile grid systems also hide various building systems while still allowing access for maintenance.
Ceiling grids used with tiles and panels are a cost-effective ceiling solution. Contact us to speak with a Rockfon representative to learn more about suspended ceiling cost.
Depending on the grid product, Rockfon Chicago Metallic ceiling grids can be used in interior & exterior applications. Review the datasheet for specific products to determine exact application areas.
Before installing tiles into a grid system, always ensure your installation is square and all components are installed correctly. Questions? Contact our technical services team and a Rockfon team member will address your questions.
We’re happy to work with you to find where to buy Rockfon products. Get in touch with us.
Stone wool acoustic ceiling tiles & panels have an inherently high Noise Reduction Coefficient due to the structure and composition of stone wool. When installed in a suspended ceiling grid, these tile & panels support a healthy interior acoustic environment. Metal ceiling solutions in interior applications can achieve a high-NRC through perforations or with the Rockfon Acoutex™ acoustic backer applied. An environment with the right acoustic performance products can improve speech intelligibility and overall indoor environmental quality (IEQ) to support human health and well-being.
Every Rockfon tile and pile has its compatible grid type. Review the stone wool & metal product datasheets for the full listing of grid compatibility.
Our acoustic ceiling tiles are available in a wide variety of edge types. These ceiling tile types include square lay-in, square or angled tegular/reveal, and concealed or semi-concealed edges.
Coupled with different suspension systems, the edge design can help to hide the grid with tightly fitted panels, shadow the grid with beveled recesses, conceal the grid with panels that seem to float under it, or emphasize the grid with square or angled tegular/reveal designs.











