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240x42 Merbau Laminated GL17S Structural Beam

Original price $243.14 - Original price $570.00
Original price $243.14
$219.95
$219.95 - $498.95
Current price $219.95
The 240x42mm Merbau Laminated GL17S Structural Beam is a premium, engineered hardwood product designed for both structural strength and aesthetic appeal in decking, fencing, and balustrade applications.

Key features based on technical specifications include:

Engineered Strength and Stability


Laminated/Finger Jointed (FJ): Manufactured from kiln-dried (KD) Merbau components, the laminating process creates a "gun barrel straight" product that is highly stable with low dimensional movement, significantly reducing the risk of twisting, cupping, or warping.
  • GL17 Structural Rating: Many 240x42 laminated Merbau products are GL17 rated, meaning they possess exceptional strength and load-bearing capacity suitable for structural beams and handrails.
  • Superior to Solid Timber: The laminating process removes defects, resulting in a product stronger and more reliable than solid timber of the same size.

    Durability and Performance

  • Class 1 Durability: Merbau is highly durable, offering a 40+ year life expectancy.
  • Natural Resistance: The timber is naturally resistant to termites, rot, and fungi.
  • Bushfire Approved: Compliant with BAL29 (Bushfire Attack Level), making it suitable for use in bushfire-prone areas.

    Physical Characteristics and Finish
Dimensions: 240mm width by 42mm thickness, providing a substantial, heavy-duty feel.
  • Appearance: Features a deep, rich reddish-brown tone, which is often used to match Merbau decking.
  • Finish: Usually supplied as DAR (Dressed All Round) and often Pencil Round (E4E - Eased Edges) for a smooth, finished look.
  • Non-Rebated: The rail is solid-edged, allowing it to be used as a top rail without a pre-cut groove for balusters.

    Installation and Maintenance
Tannin Leeching: Merbau is a tannin-rich timber, requiring proper preparation and sealing to prevent staining on surrounding surfaces during the initial weathering period.
  • Fastening: The material is versatile and easy to fasten.
  • Available Lengths: Commonly supplied in lengths ranging from 3.6m, 4.8m, 5.4m, 6.0m, 7.2m & 7.8m
Choose a Length

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