Infrastructure Products

Cross Arms

Australian hardwood crossarms supplied for electrical distribution networks, utility infrastructure and overhead line applications.

Australian Hardwood

Durable hardwood crossarms prepared for demanding external service conditions.

Utility Networks

Supplied for overhead electrical distribution and utility infrastructure.

H3 CCA Treatment

Pressure treated to H3 requirements for above-ground durability.

Custom Manufacturing

Available from blank crossarms through to fully machined and drilled products.

Hardwood Crossarm Supply

DTM Timber is a long-standing supplier of Australian hardwood crossarms to the electricity distribution industry. Crossarms have formed a core product line for more than 25 years and are supplied throughout Australia, New Zealand and Pacific utility markets.

Hardwood crossarms are widely used throughout overhead electrical networks where durable timber members are required to support conductors, insulators and pole-top equipment. DTM supplies products ranging from standard utility requirements through to project-specific manufactured solutions.

Crossarms continue to be widely used across utility networks due to their proven performance, durability and suitability for demanding service environments. Hardwood remains a practical solution for maintenance programs, replacement projects and new infrastructure works where strength and long-term field performance are important.

DTM’s integrated sawmill, treatment and manufacturing facilities provide control over milling, grading, machining, drilling and treatment operations to support quality and supply consistency.

Utility & Distribution Applications

DTM Timber crossarms can be supplied in multiple configurations ranging from bare undrilled blank crossarms through to fully prepared products manufactured to customer requirements.

Additional options may include pre-drilling, shunt plating, end nail plating, painting and stencilling depending on utility specifications and project requirements.

Manufacturing Options

DTM Crossarms are pressure treated with CCA to H3 level in accordance with AS 1604 requirements for above-ground use.

H3 treatment assists with resistance to fungal attack, termite activity and wood-boring insects, supporting long-term performance in exposed environments.

Crossarm end faces are protected using gang plates and end sealer to assist with long-term durability and service performance.

DTM Crossarms are pressure treated with CCA to H3 level in accordance with AS 1604 requirements for above-ground use.

H3 treatment assists with resistance to fungal attack, termite activity and wood-boring insects, supporting long-term performance in exposed environments.

Crossarm end faces are protected using gang plates and end sealer to assist with long-term durability and service performance.

DTM Timber supplies hardwood crossarms in common utility sizes with additional sizes available depending on project requirements

Section Size	Common Availability
100 × 75 mm	Standard crossarm section
100 × 100 mm	Standard crossarm section
125 × 100 mm	Standard crossarm section
150 × 100 mm	Standard crossarm section
150 × 125 mm	Standard crossarm section
175 × 125 mm	Standard crossarm section

Lengths are available from approximately 1.2 m to 6.3 m. Other sizes and lengths may be available on request.

Each crossarm is visually inspected to the requirements of AS 3818.4 and assessed for features that may affect performance.

Inspection Focus

Proudly Supporting Utility Networks

DTM Timber supplies hardwood crossarms to major utility networks across Australia, New Zealand and the Pacific region. Products are manufactured to support overhead distribution, infrastructure maintenance and utility replacement programs in demanding service environments.

With extensive experience supplying the electricity distribution industry, DTM continues to support utility providers, contractors and infrastructure projects requiring durable hardwood crossarm solutions.