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Flush Thinline Seismic Wall/Ceiling Covers

These flush gasketed wall and ceiling covers are designed to align with Construction Specialities flush gasketed floor covers. These covers are suitable for most wall and ceiling finishes and are unobtrusive.

  • FCF — 25.4mm - 50.8mm (1-2") — Flush Ceiling Flat seal
  • FCS — 50.8mm - 106.1mm (2-4") — Flush Ceiling Serrated seal
  • FWF — 25.4mm - 50.8mm (1-2") — Flush Wall Flat seal
  • FWS — 50.8mm - 106.1mm (2-4") — Flush Wall Serrated seal
  • HC — Hung Ceiling
Key Features
  • Cover provides multi-directional movement
  • Unobtrusive and hygienic — minimum exposed surface
  • Sealed gasket installation
  • ISO 9001: 2000 compliant
  • 5 year limited warranty
  • Optional ribbed gaskets provide greater movement (models FWS, FCS and HC)
  • Santoprene gaskets are available in four standard colours
  • Custom colours available to match surrounding finishes
Scope of Use
  • Hygiene applications, unobtrusive
  • Multi-directional movement
  • Matches Thinline floor covers
  • Joint size: 25.4mm - 254mm (1' - 10")
  • Total movement: 50-200% of joint width


  • Drywall
  • Ceramic tile
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: FCF (25.4 - 50.8mm)
CAD/BIM: FCS (50.8 - 101.6mm)
CAD/BIM: FWF (25.4 - 50.8mm)
CAD/BIM: FWS (50.8 - 101.6mm)
Data Sheet: Flush Thinline Wall/Ceiling


Masterspec: CS Group
Catalogue: Expansion Joint Covers


Joint Selection Chart


New Zealand based manufacturer and installer of seismic & expansion joint covers, performance louvres, wall protection systems for the aged-care and healthcare sectors and entrance matting,

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News from Construction Specialties

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