Elevated FRP boardwalk through public open space

DMWALK™ | Public Infrastructure

FRP Boardwalks Australia | Design, Supply & Construction

Engineered FRP boardwalk systems for coastal, wetland, park and public infrastructure.

DM Composites specialises in the design, supply and construction of Fibre Reinforced Polymer (FRP) boardwalks for public infrastructure projects throughout Australia and New Zealand.

DMWALK™ combines lightweight, corrosion-resistant FRP structural profiles with durable decking, handrails, foundations and engineered connections to create long-lasting pedestrian access structures.

What Is an FRP Boardwalk?

A complete pedestrian structure engineered around composite materials.

An FRP boardwalk is an elevated or ground-supported pedestrian access structure incorporating Fibre Reinforced Polymer components within its structural framing, decking or complete superstructure.

FRP is a composite material manufactured by combining high-strength reinforcing fibres with an engineered polymer resin matrix. When properly designed, FRP structural components provide high strength relative to their weight, corrosion resistance and durability in environments where conventional materials may require significant maintenance.

A typical DMWALK™ system may incorporate primary beams, bearers, joists, decking or grating, support posts, engineered connections, handrails, balustrades, kerbs, ramps, stairs, foundations and piles.

Depending on the application, DM Composites can provide a predominantly FRP structure or a hybrid system combining FRP with steel or concrete components.

FRP structural framing beneath an elevated boardwalk

Why Choose FRP Boardwalks?

Designed for environments where moisture and maintenance matter.

DMWALK™ combines the inherent material advantages of FRP with project-specific structural design and modular construction.

FRP boardwalk in a coastal environment 01

Corrosion Resistant

FRP does not rust, making it particularly suitable for coastal, marine, wetland and high-moisture environments.

FRP boardwalk through a moisture-exposed natural environment 02

Rot Resistant

FRP structural members do not undergo the timber rot and fungal deterioration associated with prolonged moisture exposure.

FRP boardwalk through a park environment 03

Lightweight Construction

Reduced component weight can simplify transport, handling, lifting, remote-site access and installation.

Low-maintenance FRP wetland boardwalk 04

Low Maintenance

FRP reduces corrosion treatment, repainting and timber-preservation requirements while routine inspections remain necessary.

FRP grating boardwalk in public park infrastructure 05

Slip-Resistant Surfaces

DMWALK™ can incorporate DMGRATE™ gritted FRP decking, selected around slip resistance, accessibility and pedestrian use.

Prefabricated modular FRP boardwalk 06

Modular Construction

Structural components can be prefabricated into transportable sections before final site assembly.

FRP Boardwalk Applications

Boardwalk systems developed around where they actually need to perform.

From salt-exposed coastlines to soft wetland ground, DMWALK™ systems can be configured around environmental, structural, accessibility and construction constraints.

Coastal FRP boardwalk
Coastal Boardwalks

Coastal & Foreshore Access

Coastal boardwalks can be exposed to salt spray, moisture, UV radiation and aggressive environmental conditions. FRP provides inherent corrosion resistance for walking trails, beach access, dune crossings and waterfront infrastructure.

FRP wetland boardwalk
Wetland Boardwalks

Wetlands & Sensitive Environments

Wetlands can present soft ground, continuous moisture and restricted access. Lightweight modular components can assist installation where heavy-equipment access is limited.

FRP boardwalk through natural park environment
Parks & Nature Reserves

National Parks & Recreational Access

DMWALK™ can provide pedestrian access through walking trails, nature reserves, conservation areas, visitor facilities, lookouts and wildlife observation areas.

Elevated FRP boardwalk forming part of a pedestrian route
Shared Paths

Shared Paths & Pedestrian Walkways

Elevated FRP boardwalks can form part of pedestrian and bicycle networks crossing waterways, wetlands, floodplains or uneven ground.

Replacing Timber Boardwalks with FRP

Replace recurring timber deterioration with an engineered FRP system.

Many existing public boardwalks throughout Australia were constructed using treated timber.

Over time, these structures can experience deterioration caused by moisture, rot, splitting and other environmental factors. Common issues include deteriorating decking, rotting bearers and joists, damaged handrails, loose connections, repeated maintenance, structural deterioration and restricted public access during repairs.

DMWALK™ provides an alternative using FRP structural framing and corrosion-resistant decking. Existing foundations or supports may be retained where their condition and capacity can be verified through engineering assessment.

Completed public boardwalk replacement
01

Existing Structure Assessment

Review condition, geometry, support arrangement and available drawings.

02

Site Investigation

Confirm survey, ground conditions, access constraints and environmental requirements.

03

Engineering & Design

Develop the FRP structure around loads, spans, accessibility and project requirements.

04

Fabrication

Manufacture structural components, decking, connections and handrails.

05

Demolition & Preparation

Remove the existing structure where required and prepare the work area.

06

Foundations

Install new foundations or adapt suitable existing supports where approved.

07

FRP Installation

Install framing, decking, handrails and associated components.

08

Inspection & Handover

Complete inspections, QA documentation and project handover.

FRP Boardwalks vs Timber & Steel

Different materials behave differently throughout the asset life.

FRP should not be treated as a direct dimensional substitute for timber or steel. Mechanical properties, connections, deflection and long-term performance require FRP-specific engineering.

Feature FRP Timber Steel
Rust Does not rust N/A Can rust
Rot Does not rot like timber Possible N/A
Weight Lightweight Relatively light Heavy
Coastal Exposure Excellent when specified correctly Species dependent Requires corrosion protection
Maintenance Generally low Treatment or replacement may be required Coatings may require maintenance
Modular Construction Excellent Good Good
Electrical Conductivity Non-conductive FRP Generally non-conductive Conductive
Structural Design FRP-specific Timber-specific Steel-specific

Boardwalk Decking Options

The walking surface should be selected around the actual route and users.

Selection should consider accessibility, surface openings, slip resistance, loads, spans, environmental exposure and project specifications.

01

Standard Mesh FRP

Conventional open mesh suitable for appropriate pedestrian and maintenance applications.

02

Mini Mesh FRP

Smaller surface openings for public walkways and access applications.

03

Micro Mesh FRP

Finer surface configuration for applications requiring reduced openings.

04

Heavy Duty FRP

Increased structural capacity for appropriate higher-load applications.

05

DMWOOD™ WPC

Timber-look composite finish for architectural and recreational boardwalk applications.

FRP Boardwalk Structural Design

Composite boardwalks need to be engineered as composite structures.

Pultruded FRP profiles are orthotropic, meaning their mechanical properties vary according to fibre orientation.

Structural design should consider permanent loads, pedestrian and bicycle loading, maintenance loads, wind, flood actions, buoyancy, debris impact, bending, shear, deflection, vibration, connections, bearing, foundations and environmental exposure.

For many FRP boardwalks, deflection and serviceability can govern member selection because FRP has a lower elastic modulus than structural steel.

DMWALK™ can be developed around narrow pedestrian paths, accessible routes, shared paths, elevated structures, curved alignments, multi-span structures and boardwalks incorporating platforms, ramps or stairs.

Loads Permanent, pedestrian, bicycle, maintenance, wind and project-specific actions.
Serviceability Deflection and vibration are assessed alongside strength requirements.
Connections Bearing, bolts, brackets, plates and interfaces require project-specific detailing.
Geometry Straight, curved, segmented and multi-span arrangements can be developed.
Accessibility Width, gradients, crossfalls, openings, landings and transitions can influence design.
Environmental Exposure Moisture, UV, coastal exposure, flooding and long-term conditions are considered.

FRP Boardwalk Foundations

Foundation selection starts with the site, not the boardwalk catalogue.

Foundation selection depends on geotechnical conditions, structural loads, environmental constraints and construction access.

The appropriate solution may use bored piers, driven piles, screw piles, micropiles, concrete footings, abutments or verified existing supports.

Boardwalk substructure and foundation construction
01

Bored Concrete Piers

Suitable where ground conditions and construction access permit, subject to structural and geotechnical design.

02

Driven Piles

Potentially suitable for wetlands, coastal areas and soft ground where geotechnical and environmental requirements allow.

03

Screw Piles

May provide reduced excavation and relatively rapid installation, depending on soil conditions and access.

04

Micropiles

Can be considered where conventional piling equipment cannot access the site or space is restricted.

05

Footings & Abutments

Concrete elements can interface with FRP framing using engineered plates, anchors and connection details.

06

Existing Foundation Reuse

Existing supports may be retained where condition, capacity and compatibility can be verified.

Construction in Environmentally Sensitive Areas

Construction methodology matters as much as the final material.

Wetlands, waterways, national parks and sensitive environments can introduce restrictions around vegetation, soft ground, water levels, access and environmental controls.

Off-Site Prefabrication Reduces the amount of cutting, drilling and fabrication required within the site.
Modular Assemblies Boardwalk components can be transported in manageable sections.
Lightweight Equipment Lower component weight can reduce lifting requirements compared with some alternatives.
Temporary Access Construction access can be planned around the environmental limitations of the site.
Staged Construction Installation can be broken into controlled stages where appropriate.
Site Reinstatement Environmental outcomes depend on the complete methodology, including temporary works and reinstatement.
Modular FRP boardwalk integrated into landscaped development

Modular FRP Boardwalk Construction

More assembly before site. Less fabrication in the field.

DMWALK™ boardwalks can be designed around transportable structural sections prepared before delivery to site.

Depending on project requirements, prefabricated modules may incorporate structural beams, bearers, joists, grating or composite decking, handrails, balustrades, kerbs, connection plates, stairs, landings and platform sections.

Reduced Site Installation Time
Improved Dimensional Accuracy
Reduced On-Site Fabrication
Simplified Transportation & Handling
Improved Construction Planning

FRP Boardwalk Handrails & Balustrades

Edge protection should be integrated into the boardwalk design.

Handrail selection needs to consider pedestrian loading, fall height, accessibility, structural connections, environmental exposure and project requirements.

FRP Handrails Composite handrail systems for appropriate project environments.
Galvanised Steel Project-specific galvanised handrail systems where specified.
Stainless Steel Stainless systems where required by design and environmental exposure.
Balustrades Vertical or horizontal arrangements developed around project requirements.
Mesh Infill & Kerbs Edge protection and infill arrangements can be incorporated.
Removable Systems Removable or collapsible arrangements may be developed where specifically engineered.

Flood-Resistant FRP Boardwalks

Flood-prone infrastructure needs hydraulic as well as structural engineering.

Boardwalks within floodplains, waterways and low-lying reserves can be exposed to significant hydraulic forces during flood events.

FRP boardwalks can be designed for flood-prone environments where appropriate structural and hydraulic engineering is undertaken. Where required, specially engineered removable or collapsible handrail systems can also be incorporated.

Design Flood Levels
Water Velocity
Hydrostatic Loading
Hydrodynamic Loading
Buoyancy
Debris Impact
Debris Accumulation
Structural Restraint
Foundation Stability
Scour
Erosion
Hydraulic Openings
Decking Configuration
Handrail Arrangement
Pedestrian Safety
Accessibility

FRP Boardwalk Standards & Compliance

Standards are applied according to the actual structure and intended use.

DMWALK™ boardwalks are designed according to applicable project requirements and relevant Australian Standards.

AS/NZS 1170

Structural design actions including applicable permanent, imposed, wind and other actions.

AS 5100

Relevant provisions may apply where a boardwalk forms part of a bridge or bridge-like structure.

AS 1428

Accessibility requirements may apply to paths, ramps, crossfalls, openings, handrails and transitions.

AS 1657

May be relevant to applicable access and maintenance platforms, walkways and stairways.

AS 2156

May be relevant to walking tracks, boardwalks, stairs and associated infrastructure in natural environments.

AS 4586

Relevant to project requirements for pedestrian surface slip-resistance classification.

AS 3600

Relevant provisions may apply where reinforced concrete foundations, piers or abutments form part of the structure.

The applicable standards depend on the intended use, location, structural arrangement and accessibility requirements of the particular project.

Accessibility & Public Safety

The boardwalk must work for the people who will actually use it.

Public boardwalks must be designed around their intended users and the applicable accessibility and safety requirements.

Accessible Path Width
Pedestrian Loading
Bicycle Loading
Surface Openings
Slip Resistance
Crossfall
Longitudinal Gradient
Ramps
Landings
Edge Protection
Handrails
Balustrades
Changes in Level
Pathway Interfaces
Decking Orientation
Surface Finish
LIFE Design Life
& Whole-of-Life Value

Boardwalk Design Life & Durability

Long-term performance depends on the complete structure.

DMWALK™ systems can be engineered around project-specific design-life requirements.

FRP's inherent resistance to corrosion and timber rot can provide substantial advantages in wet and aggressive environments. However, the service life of a complete boardwalk also depends on foundations, connections, decking, handrails, installation quality, inspection and maintenance.

Environmental Exposure
Resin Selection
UV Resistance
Structural Loading
Long-Term Deflection
Connections & Fixings
Foundation Durability
Maintenance Access

FRP Boardwalk Design & Construction Process

From initial project review through to inspection and handover.

DM Composites can manage complete FRP boardwalk projects from initial design through construction and handover.

01

Project Review

Review drawings, specifications, scope, environment, site information and delivery requirements.

02

Survey & Site Investigation

Confirm levels, alignment, existing structures, ground conditions, services and access constraints.

03

Engineering & Design

Develop framing, decking, handrails, connections, foundations and accessibility requirements.

04

Shop Drawings & Fabrication

Prepare fabrication drawings, schedules, connection details and structural components.

05

Site Establishment

Establish access, environmental controls, safety measures and temporary works.

06

Foundations

Construct piles, piers, footings, abutments or other supporting elements.

07

FRP Superstructure

Install framing, connections, decking, handrails and associated components.

08

QA & Handover

Complete inspections, quality documentation, as-built information and handover requirements.

Project Delivery

Support matched to the procurement model of your boardwalk project.

DM Composites supports engineered supply packages, complete design and construction, and construction from issued documentation.

01

Design & Supply

For contractors requiring an engineered FRP boardwalk package.

  • Structural Engineering
  • FRP Product Selection
  • Shop Drawings
  • Connection Detailing
  • Fabrication
  • Procurement
  • Delivery
  • Technical Documentation
02

Design & Construct

Complete integrated boardwalk delivery from engineering through to handover.

  • Engineering & Design
  • Procurement
  • Fabrication
  • Site Establishment
  • Foundations
  • Structural Installation
  • Decking & Handrails
  • QA & Handover
03

Construct Only

Construction in accordance with design documentation already issued for construction.

  • Site Establishment
  • Survey & Set-Out
  • Foundations
  • Structural Installation
  • Decking
  • Handrails
  • Finishing Works
  • Project Handover

Why DM Composites?

FRP expertise supported by engineering, fabrication and construction capability.

Our capability extends beyond supplying individual FRP components. We understand how the complete boardwalk must come together.

01

Specialist FRP Capability

Structural profiles, grating, decking, handrails and complete engineered composite structures.

02

Engineering & Design

Project-specific boardwalk solutions developed from concept drawings, tender documentation or existing designs.

03

Fabrication

Structural members, decking, connections and modular assemblies can be prepared before delivery.

04

Construction

Construction capability can include foundations, structural installation, decking and handrails.

05

One Coordinated Package

Engineering, procurement, fabrication and construction coordinated through one delivery team.

Who We Work With

Boardwalk support across public infrastructure delivery teams.

DM Composites can become involved during concept development, tendering, value engineering, detailed design, procurement or construction.

Local Councils
State Government Agencies
Federal Government Agencies
Parks Authorities
Civil Contractors
Engineering Consultants
Structural Engineers
Landscape Architects
Architects
Developers
Infrastructure Asset Owners
Public-Space Project Teams

Technical Documentation

Information for engineers, consultants and contractors.

Depending on the project, DM Composites can provide technical information to assist with boardwalk design, specification, procurement and construction.

FRP Product Technical Data
Structural Section Properties
FRP Grating Specifications
Load & Span Information
Slip-Resistance Information
Resin-System Information
Connection Details
Typical Structural Details
Shop Drawings
Material Schedules
Installation Information
Project-Specific Engineering
Quality Assurance Records

Frequently Asked Questions

FRP boardwalks explained.

Common questions about boardwalk materials, coastal exposure, wetlands, accessibility, flooding, foundations and project delivery.

An FRP boardwalk is a pedestrian access structure incorporating Fibre Reinforced Polymer structural components, decking or a complete FRP superstructure.

FRP can provide significant advantages where moisture, rot and ongoing maintenance are important considerations. The appropriate material still depends on structural requirements, environment, budget, appearance and whole-of-life considerations.

FRP itself does not rust like steel. Metallic fixings or other components must still be selected for the applicable environmental exposure.

FRP structural components do not undergo timber rot or fungal decay, making them attractive for moisture-exposed environments.

Yes. Correctly specified FRP boardwalks are particularly suited to many coastal environments because of their inherent corrosion resistance.

Yes. Lightweight components and modular construction can provide advantages in wetlands and environmentally sensitive areas. The construction methodology must still respond to site-specific constraints.

Yes. Curved or segmented alignments can be developed using project-specific framing, connections and coordinated decking layouts.

Yes. FRP boardwalks can be engineered for pedestrian and bicycle traffic, including shared-path applications, where required by the project.

Yes, where the boardwalk is specifically engineered for the required vehicle loading. Standard pedestrian boardwalks should not automatically be assumed suitable for vehicles.

Yes, subject to appropriate structural and hydraulic engineering considering flood levels, water velocity, buoyancy, debris, scour and foundation stability.

DMWALK™ can incorporate DMGRATE™ grating with gritted surfaces. The appropriate product and surface finish should be selected around the required use and slip-resistance performance.

Yes. Boardwalks can be designed around accessible pedestrian routes where required, considering width, gradients, crossfalls, openings, transitions, handrails and landings.

Yes. DMWALK™ can incorporate DMWOOD™ WPC decking where a timber-inspired walking surface is preferred.

Potential systems include bored concrete piers, driven piles, screw piles, micropiles, concrete footings and engineered connections to existing structures.

Yes. DM Composites can develop a complete replacement structure or, where verified as suitable, a new FRP superstructure supported on retained foundations.

Yes. Structural frames, decking panels, handrails and connections can be prepared or assembled off site before final installation.

Yes. DM Composites provides Design & Supply, Design & Construct and Construct Only services for FRP boardwalk projects.

Yes. DM Composites supplies and delivers boardwalk and public-infrastructure solutions across Australia and New Zealand, with delivery arrangements depending on the project scope and location.

Need an FRP Boardwalk for Your Project?

Send us your drawings, specifications and site information.

Whether you are replacing an existing timber boardwalk, developing coastal access, upgrading a shared path or providing pedestrian access through wetlands, our team can review the requirements and develop an appropriate DMWALK™ solution.

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