140x80 Merbau Laminated GL17S Structural Beam

140x80 Merbau laminated (Glulam) beams are high-strength, Class 1 durable structural hardwood engineered to GL17 specifications, ideal for exposed, termite-resistant, and high-load applications. These beams offer superior stability, reduced warping, and a rich, reddish-brown aesthetic, with lengths available up to 6.0m or more. 

Key Features and Benefits

• Structural Grade (GL17): High structural strength (GL17S) suitable for demanding, long-span applications.
• Durability & Resistance: Class 1 durability rating, making them highly resistant to rot, termites, and harsh weather.
• Stability: Engineered for superior dimensional stability with reduced shrinking, twisting, or warping.
• Applications: Suitable for both interior and exterior use, such as decking beams, roof structures, lintels, and pergolas.
• Aesthetic Appearance: Features a distinct reddish-brown color, often with a premium A-grade appearance.
• Compliance: Generally manufactured to meet Australian standards (AS/NZS 1328).
• Maintenance: Recommended to be oiled or sealed to maintain colour and protect against UV rays. 

Technical Specifications

• Size: 140mm x 80mm.
• Material: Merbau (Kwila) hardwood.
• Lengths: Commonly available in 3.6, 4.8, 6.0 & 7.8m
• Suitability: BAL29 rated for bushfire-prone areas. 

It is recommended to seal the beam with a protective oil or paint to minimize tannin leaching (resin bleed) and to keep the material dry before installation.