Magna

Magna laminated timber combines the natural strength and beauty of Merbau with engineered precision to deliver a durable, high-performance structural solution for posts, beams, and handrails.

Magna

Magna laminated timber from TLB is a premium structural product crafted from sustainably sourced Merbau.

Magna laminated timber delivers superior structural integrity and visual appeal, making it ideal for applications where both strength and presentation matter. Manufactured using high-quality Merbau (Intsia bijuga), Magna retains the natural durability, hardness, and termite resistance of solid Merbau, enhanced by precision glulam technology for improved stability and consistency. Every piece is engineered for long-term reliability and designed to perform under Australia’s varied climatic conditions.

Each beam, post, and handrail is produced to exacting standards under the supervision of the Glue Laminated Timber Association of Australia (GLTAA). The result is a product that is free from visible defects such as cracks or delamination, offering a clear, refined finish suitable for exposed architectural elements. With consistent moisture content, low shrinkage, and outstanding resistance to warping, Magna provides builders and designers with a dependable structural timber that maintains its form and finish over time.

Magna’s sustainable origins are equally impressive. The Merbau used in production is sourced from FSC 100% certified forests, ensuring ethical harvesting and full environmental accountability. Supported by a 15-year warranty, Magna laminated timber represents a premium choice for projects that value structural strength, durability, and responsible sourcing.

Product Features

Engineered for strength, stability, and appearance, Magna laminated timber delivers dependable performance for a wide range of architectural and structural applications.
  • Premium Material: Manufactured from Merbau (Kwila), known for exceptional durability and strength.
  • Ethically Sourced: Made from FSC 100% certified forests ensuring responsible and sustainable timber supply.
  • High Structural Integrity: Classified to GL17 and GL13 strength grades under GLTAA supervision.
  • Quality Assured: Fully certified to AS1328 and produced under a strict third-party quality system.
  • Durability: Resistant to decay, termites, and surface cracking with low shrinkage rates.
  • Fire Performance: Approved for use in bushfire-prone areas due to Merbau’s natural resistance and PRF adhesive properties.
  • Appearance Grade A: Smoothly dressed, knot-free, and ready for coating or painting.
  • Versatile Applications: Suitable for structural and aesthetic use in posts, beams, and handrails.
  • Long Warranty: Supported by a 15-year manufacturer’s warranty against defects.
  • Australian Standards: Manufactured to meet strict Australian performance and quality codes.

Products

Magna laminated timber is crafted exclusively from Merbau, a premium hardwood renowned for its toughness, density, and rich colour.

Benefits and Application

With a combination of natural durability and engineered precision, Magna laminated timber is suited to a wide range of residential and commercial projects.
  • Ideal for structural framing, beams, and columns in architectural builds
  • Perfect for use in decks, pergolas, and outdoor living structures
  • Suitable for handrails and balustrade components requiring clear finishes
  • Performs well in exposed external conditions (Service Class 3)
  • Can be used in bushfire-prone and termite-risk zones
  • Low movement and shrinkage for stable, precise installations
  • Custom sizes and spans available for bespoke designs
  • Applicable in both commercial and residential environments

Specifications

All Magna laminated timber products are manufactured to rigorous Australian Standards, ensuring strength, consistency, and long-term durability.
Product Type: Laminated Timber
Manufacturer: TLB
Product Range: Structural & Building Timber
Timber Species: Merbau (Intsia bijuga)
Strength Grades: GL17 (beams, 90×90/115×115 posts), GL13 (other sections)
Standard Sizes: Posts, Beams, and Handrails
Adhesive Type: Phenol-Resorcinol Formaldehyde (PRF) – A Bond
Durability Class: High, suitable for Service Class 3 (external exposure)
Shrinkage: Radial 1.5%, Tangential 2.5%
Surface Finish: Appearance Grade A, smooth dressed
Certification: GLTAA, AS1328 compliant
Sustainability: FSC 100% certified source forest
Warranty: 15 years against defects in manufacture and materials

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Info & Files

What makes Magna laminated timber different from solid Merbau?
Magna uses engineered glulam technology to bond smaller kiln-dried sections of Merbau, creating larger structural components that are more stable and consistent than solid timber.

Is Magna suitable for exterior applications?
Yes, Magna laminated timber is rated for Service Class 3 use, making it suitable for fully exposed outdoor environments.

What strength ratings are available?
Magna beams and posts are tested to GL17 and GL13 strength grades under Australian Standard AS1328.

Can Magna be used in bushfire-prone areas?
Yes, Merbau is a recognised bushfire-resisting timber, and Magna glulam maintains this property, making it suitable for BAL zones.

How long is the warranty period?
All Magna laminated timber products come with a 15-year manufacturer’s warranty against defects.

Is the timber sustainably sourced?
Yes, Magna’s Merbau is harvested from FSC 100% certified forests, ensuring responsible and traceable supply.

Can the timber be clear coated or painted?
Yes, Magna is supplied as Appearance Grade A with a smooth surface ready for clear finishing or painting.

Does Magna resist termites and decay?
Merbau is naturally resistant to termites and rot, making Magna an excellent choice for long-lasting structural applications.

Are custom sizes available?
Yes, custom-made posts and beams can be produced to meet project specifications, with span tables available upon request.

Who certifies Magna laminated timber?
Magna is certified by the Glue Laminated Timber Association of Australia (GLTAA) and manufactured under third-party audited quality assurance.

Magna for your next project

Magna laminated timber represents a premium choice for architects, designers, and builders who value structural reliability and refined presentation. Its superior performance, FSC certification, and long-term warranty make it a dependable option for both residential and commercial projects. For tailored advice, span data, or pricing on your next project, contact the Duce Architectural Timbers team. We supply Magna laminated timber across Queensland and beyond, providing expert support to help you specify the right solution for your design.
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