140x42 Merbau Laminated GL17S Structural Beam
Engineered for strength and reliability, this 140x42mm Merbau Laminated GL17S Beam delivers solid performance for structural beams and rail applications. The finger-jointed design and kiln-dried Merbau components create a straight, stable profile with minimal twisting, cupping, or warping.
Merbau offers exceptional durability with a long life expectancy and natural resistance to termites, rot, and fungi. It’s bushfire approved (BAL29) for use in areas prone to fire threats, making it a versatile choice for decking, fencing, and balustrades. This beam is non-rebated with a solid edge, suitable as a top rail without a groove.
Key product details
- GL17 structural rating for strong load-bearing performance
- Laminate construction provides improved stability over solid timber
- Deep reddish-brown appearance complements Merbau decking aesthetics
- Typically supplied as DAR finish with smooth edges for a refined look
- Dimensions: 140mm width x 42mm thickness
Available lengths commonly offered include 3.6m, 4.8m, 5.4m, 6.0m, and 7.8m. Tannin leeching is a consideration during initial weathering, so proper sealing is recommended to prevent staining on nearby surfaces. Shipping options available. In‑store pickup available — contact us for pickup location & hours.