Trief® GST1A Chevron Anti-Clockwise Kerb

Trief® GST1A Chevron Anti-Clockwise Kerb

Brett Landscaping

Trief Chevrons are interlocking kerbs that have the same design specification and qualities as the standard units and are very effective for directional indication at road bends and roundabouts.

Jump to:
+44 (0)345 6080577

The unique Trief Cadet GST1A Chevron Kerb design is extremely effective for marking traffic islands and roundabouts in low speed urban environments. The units feature the same design, specification and production qualities as the Trief Cadet GST1A Containment Kerb units.

Trief Cadet GST1A Chevron units are available in a choice of surface finishes: marker for a non-reflective finish or Ballotini finish, which contains Ballotini glass beads for a reflective surface finish.

Both are available in black and white. Other colours are available on request.

The Trief Containment Kerb system has been widely used to form traffic calming features, pedestrian refuges and to protect bridges and can also be used to enhance security features by reducing traffic speeds and as a visual and physical deterrent to deliberate incursion.

Trief Cadet GST1A Chevron Kerbs are manufactured in accordance with BS EN 1340: 2003. CE marked.


Brett Landscaping operate a number of independently audited management systems:

  • BS EN ISO 9001: 2008 Quality Management System.
  • BS EN ISO 14001: 2004 Environmental Management System.
  • OHSAS 18001: 2007 Health and Safety Management System.
  • BES 6001 Responsible Sourcing of Construction Products.

General information


Black non-reflective resin

Black reflective resin

White non-reflective resin

White reflective resin




Visual direction kerb for traffic management




270 x 325 x 300 mm


Statutory Rights - Technical Support

Uniclass 2015

Pr_25_93_45_21 Concrete safety kerbsPrimary


Q10/10 Precast concrete

Q10/110 Proprietary precast concrete

Q10/115 Precast concrete safety kerbs

Specification data - Concrete safety kerbs

Product Reference

Trief Cadet GST1A Chevron Containment Kerb


Mechanical lift required for installation

Special shapes



GST1ACC - Standard

GST1ACCBRF - Black reflective

GST1ACCBRM - Black resin

GST1ACCWRF - White reflective

GST1ACCWRM - White resin

Clockwise Stop Left Hand

GST1ACCL - Standard

GST1ACCLBRF - Black reflective

GST1ACCLBRM - Black resin

GST1ACCLWRF - White reflective

GST1ACCLWRM - White resin

Clockwise Stop Right Hand

GST1ACCR - Standard

GST1ACCRBRF - Black reflective

GST1ACCRBRM - Black resin

GST1ACCRWRF - White reflective

GST1ACCRWRM - White resin


GST1ACA - Standard

GST1ACABRF - Black reflective

GST1ACABRM - Black resin

GST1ACAWRF - White reflective

GST1ACAWRM - White resin

Anti-Clockwise Stop Left Hand

GST1ACAL - Standard

GST1ACALBRF - Black reflective

GST1ACALBRM - Black resin

GST1ACALWRF - White reflective

GST1ACALWRM - White resin

Anti-Clockwise Stop Right Hand

GST1ACACR - Standard

GST1ACACRBRF - Black reflective

GST1ACACRBRM - Black resin

GST1ACACRWRF - White reflective

GST1ACACRWRM - White resin


Black non-reflective resin

Black reflective resin

White non-reflective resin

White reflective resin

Standard product features


Natural concrete with painted black or white chevron units. Trief Cadet GST1A Chevron Containment Kerbs can be either reflective incorporating Ballotini glass beads or non-reflective depending upon customer requirements.


Trief Cadet GST1A Chevron 270 mm wide x 325 mm high x 300 mm long.

Digital objects
PlatformCompatibleVersionCertified to
IFC2X3 5 1.3
IFC2X3 5 1.3
Revit 2016 6 2.0
Download now from NBS National BIM Library
Similar products from Brett Landscaping