Product Summary

Chicago Metallic™ 1200 Seismic ceiling suspension system comes in Intermediate and Heavy-Duty options and are compatible with acoustical panels, lighting and air diffusers. Suitable for general areas, the 1200 Seismic suspension is flame spread Class A and listed for seismic applications. This system can be found in seismic rated retail, schools, offices and general interior spaces. Some components are also available in HRCmax™ (High Recycled Content) and will maximize results for sustainable construction projects.

Merrimack Building Supply is a proud distributor of Rockfon® and the Chicago Metallic™ brand. With locations throughout New England we are able to deliver to quality products to our customers in a timely manner.

Features and Benefits

  • Cost control.
  • Global compatibility and availability.
  • Standard cross tee height ensures compatibility with straight and curved trim systems.
  • Sustainable: Minimum 25% recycled content, 100% locally recyclable, global/regional manufacture.

Fire Performance

Chicago Metallic suspension systems meet a Class-A frame rating in accordance with ASTM standard E1264-08.

ASTM E1264 Classification


Seismic rated retail, schools, offices general interior spaces.


ASTM C 635 Heavy Duty (HD) and Intermediate Duty (ID) main tee classifications; commercial quality HDG-30 steel, galvanized body and cap, 15/16” width, 1-1/2” height. Meets all seismic code requirements.

Hygienic Properties


Minimum 25% recycled content, 100% locally recyclable, global/regional manufacture.

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