Why fire-rated FRP boardwalks should be the default for parks and outdoor access infrastructure in Australia

Spring brings two things at once in Australia: the start of capital works delivery and the lead-up to bushfire season.

For councils and parks authorities specifying outdoor access structures, those two pressures now point to the same answer: fire rated fibre-reinforced polymer (FRP).

Parks Victoria’s growing use of FRP in track, boardwalk and maritime restoration reflects that shift towards more resilient outdoor infrastructure.

Bushfire risk and why material selection matters

A wet spring builds up fuel before the dry season arrives. Tourists and construction crews working on nearby jobs all bring ignition risk into parks and reserves.

For FRP boardwalks and outdoor access infrastructure in fire-prone parks and reserves, BAL40 fire rating is the benchmark. Terra Firma’s FRP grating is certified to BAL40 and delivers:

• Fire retardant properties tested under radiant heat, ember attack and direct flame contact
• No hot works required during installation, no welding, no grinding, no sparks
• Lightweight and prefabricated, so structures can be carried into remote sites without heavy machinery
• Low maintenance over the asset life with no rot, rust or recoating

What specifying an FRP fire rating involves

Meeting a fire rating is an engineering requirement, not only a product selection:

• load requirements
• structural analysis
• material sign-off
• engineering certification – all need to be confirmed before a project moves forward.

Youth Learning Centre and Institute of Technology in Kiribati

When Reeves International needed fire-rated access structures for the Youth Learning Centre and Institute of Technology in Kiribati, they brought Terra Firma in at the design stage to work through the structural analysis, confirm load requirements and provide engineering sign-off. The products were dispatched from Australia and installed on site.

This isn’t a uniquely Australian problem. Wherever protected or remote sites need durable FRP boardwalks and access infrastructure, fire safety matters both in the finished structure and during installation. Meeting the specified FRP fire rating addresses the first. Avoiding hot works helps address the second.

When the site itself is the challenge

Remote terrain, no vehicle access and no hot works permits can limit conventional construction options. Prefabricated FRP structures can be carried in and assembled without welding or grinding onsite.

Turpins Falls, Victoria – Parks Victoria

The Turpins Falls lookout had been closed for five years. The terrain was steep, vehicle access was impossible and hot works permits were off the table. The structure had to be prefabricated offsite, pre-assembled in sections and carried in along single-file tracks. Helicoptering it in was the alternative, at significantly greater cost.

Terra Firma designed and fabricated the full viewing platform and staircase offsite, with installation planned around the site’s access and hot works restrictions:

• FRP steps, substructure and viewing platform delivered as prefabricated walkway sections, pre-assembled offsite
• Sections carried in along single-file tracks through steep bush terrain
• Metal handrails bolted together onsite – no welding, no grinding, no sparks

The lookout reopened for the first time in five years. A bushfire in the area highlighted why avoiding hot works matters: contractors building metal fencing nearby sparked the fire with metalworking tools, costing the community in excess of $200,000 to contain. While the fire burned through the surrounding area, the Terra Firma structure remained unaffected.

The incident illustrates both sides of fire-conscious specification – choosing materials for bushfire performance and an installation method that avoids introducing an ignition source.

Bundian Way Walking Trail, New South Wales

Bundian Way Walking Trail, New South Wales

Bundian Way is a heritage trail linking the coast to the high country. Its steep terrain, complex ridgelines and rock formations required the composite boardwalk to be configured around the landscape rather than through it.

Terra Firma designed and supplied a complete composite boardwalk and stair system with:

• No onsite fabrication
• No hot works
• No disturbance to the surrounding bushland
• Modular sections installed without heavy machinery