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Flush and Pan Seismic Floor Covers

These dual gasket, flush floor covers are designed to perform during seismic movement and provide a smooth transition for joints larger than 127mm (5").

Plate deflectors disengage gaskets during seismic activity to provide additional movement — these covers can be designed for up to 100% movement.Joint sizes range from 127mm - 406.4mm (5" - 16") and can accommodate large seismic joints.

Pan Seismic floor covers are virtually invisible seismic floor covers are used for interior and exterior applications from 50.8mm and up (2"). Designed to accept a variety of floor finishes, they handle multi-directional movement.

Flush Seismic:

  • SGR — Seismic Gasket Recessed plate
  • SGP — Seismic Gasket exposed Plate

Pan Seismic:

SSR — Seismic Stone Recessed  

  • SSR 200-400
  • SSRH 200-400
  • SSR 500+
Key Features
  • Flush seismic covers 
  • Minimum exposed surface
  • Hygienic, suitable for wheeled equipment
  • Optional sealed gasket installation, seismic movement
  • ISO 9001: 2000 compliant
  • 5 year limited warranty
  • Available in 4 standard colours, with options for custom colour matching
  • Pan Seismic features an exclusive edge protection to eliminate chipping of pavers
Scope of Use
  • Suitable for hygienic environments  and wheeled equipment
  • Capacity for deep floor finish materials
  • Interior and exterior applications
  • 100-200% of joint width

Seismic Flush:

  • Ideal for interior applications with larger movement requirements
  • Perfect for applications using carpet or vinyl floor covering up to 3.2mm
  • Joint size: 127mm - 406.4mm (5" - 16")

Pan Seismic:

  • Interior and exterior applications
  • Designed for multi-directional movement
  • Pan can accept a variety of interior and exterior finishes and thicknesses
  • Joint size:  >50.8mm (>2")


  • Carpet
  • Vinyl
  • Terrazzo
  • Stone
Statement of Building Code Compliance

This product, if designed, used, installed and maintained in accordance with the statements and conditions of the technical literature, will meet or contribute to meeting the following provisions of the NZBC:

  • Clause B2 Durability
  • Clause F2 Hazardous Building Materials
In-Service History

Construction Specialties NZ Ltd. has been operating in New Zealand as a manufacturing distributor of the Construction Specialties range of products since 1988. Construction Specialties is a privately owned USA based, global company. Here in New Zealand, CS are privately owned and run as a wholly separate entity.

Recent / Current Projects:

  • NZ International Convention Centre
  • CCEV
  • Metro sports CHCH
  • Wellington Town Hall
  • Wellington Children Hospital
  • Wellington District Court
  • Wakefield Hospital
  • The Langlands Hotel Invercargill
  • Summerset group (Nationwide New Build)
  • Ormiston Town Centre
  • Cordis Hotel
  • 55 Corinthian Drive Albany

Past Projects:

  • Auckland Airport Expansion
  • AUT and UOA University projects
  • Christchurch Acute Hospital
  • The Terrace Christchurch
  • UOC Christchurch
  • Starship Hospital
Other Performance Attributes
  • ISO 9001: 2000 compliant
  • CS Seismic and Expansion Joint Covers have been tested to ASTM E1399 / E1399M - 97(2017) Standard Test Method for Cyclic Movement and Measuring the Minimum and Maximum Joint Widths of Architectural Joint Systems


  • CS Expansion Joint Covers feature a 5 year limited warranty
  • Installation: 2 years
CAD/BIM: SSR (>127mm)
CAD/BIM: SSR (>50.8mm)
Data Sheets: Flush & Pan Seismic Floor


Masterspec: CS Group
Catalogue: Expansion Joint Covers


Joint Selection Chart


Manufacturer and installer of wall protection systems, entrance matting, expansion joint covers, solar shading, louvres, cubicle curtain track and pressure relief systems.

Product Enquiries

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