New Zealand Timber Faced Guardrails – G2m & G4m
NZTA has assessed Timber Faced Guardrail as compliant with NCHRP 350 TL2. All galvanized steel components of the rail can be painted to blend with the environment. Cyclist and motorbike protection can also be added to all installations.
Both G4m and G2m have back masks available for the rail and posts so that the steel components are hidden for protection of children, animals and also for appearances. The system is available in 4 meter, or 2 meter posts spacing to allow less deflection on impact or tight radii.
Features of Timber Faced Guardrail G4m & G2m
- NZTA assessed to NCHRP 350 TL2
- Aesthetically appealing log rail
- Rapid & easy to install
- Cost effective with alternative guardrail
- Variable post spacing to avoid underground services or tree roots
- Ideal for parks, ski fields and urban areas
- Timber masks available to cover visible steel
- 4m & 2m posts and rails allow tight radii and less impact deflection
- Suitable to speed environments up to 70 km/hr
Specifications
- Assessed to NZTA TL2
- Crash tested to EN 1317 at 110kph
- Height of top of rail 700mm + 20mm
- Post spacing 2m or 4m
- Timber Rails are 180mm diameter
Terminal End Treatments
There are various terminal ends available. We have plans for most variations so please contact us with your preferred design. The standard terminal end is a 4 metre TFG rail with one end buried in the ground.
All installations must have both ends restrained for the engineering of the TFG rail to function correctly when impacted.
Handrails
The two handrail designs depend on the location and application. The linked brochures show layout. The height of your handrail needs to be specified at the time of ordering.
Installation Equipment
Below are several methods used to install the guardrail post and to attach the rail to the post. There are also suggestions how to bend the splice bars on curved alignments and systems to use if lifting of the rail is required.
