You are using an outdated browser version not supported by this website.
Click here to upgrade your browser

Flush Thinline Gasketed Seismic Floor Covers

Flush Thinline floor covers are flush gasketed covers used for small interior joints where minimal visual impact is preferred. They are perfect for wheeled equipment including wheelchairs.

This cover is suitable for most floor finishes. It is available in multiple frame heights and has four standard gasket colour options. Joint sizes range from 25.4mm to 50.8mm (1" - 2"). 

  • GFT — Gasket Flush Thinline
  • GFPS — Gasket Flush Pipestem Surface mount
  • GFS — Gasket Flush Surface mount
  • GFST — Gasket Flush Surface mount, Tile
Key Features
  • Minimal surface area
  • Smooth, strong, and hygienic
  • Sealed dual durometer gasket installation
  • ISO 9001: 2000 compliant
  • 5 year limited warranty
  • Available in 4 standard colours, with options for custom colour matching
Scope of Use

These flush, gasketed floor covers are ideal for interior applications where minimal visual impact is desired and where hygiene is important.

  • Suitable for wheeled equipment and wheelchairs
  • Joint size: 25.4mm to 50.8mm (1" - 2")
  • Flush Thinline seals are offered in multiple frame depths from 25.4mm - 76.2mm (1"-3")
  • Total movement: 50% of joint width


  • Carpet
  • Vinyl
  • Ceramic tile
  • 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


Data Sheet: Flush Thinline 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

News from Construction Specialties

Deliver Projects On Time with NZ-Made Seismic Joints and Performance Louvres
Five Steps for Specifying Seismic and Expansion Joints
Get a free weekly digest of essential news

New and updated architectural products, design solutions, inspiration, technical advice and more when you sign up for EBOSS.