290x42 Merbau Laminated GL17S Structural Beam
Maximize outdoor strength with a dependable beam built for demanding spaces. This laminated Merbau 290x42mm GL17S structural beam delivers solid support for decking, fencing, and balustrades, finished with a clean, professional look.
Finger-jointed, kiln-dried Merbau creates a straight, stable beam that resists twisting and cupping. The GL17 rating confirms robust load-bearing performance for lasting structural integrity in outdoor projects. Durability is a natural advantage: timber in this grade resists termites, rot, and fungi, reducing maintenance over time.
It’s bushfire approved (BAL29), expanding suitability for fire-prone locations. Appearance leans toward a deep reddish-brown tone that complements Merbau decking. Supplied dressed all round with eased edges for a smooth, clean finish, and non-rebated to top-rail without a pre-cut groove for balusters. Available in long lengths to fit a range of layouts.
Key benefits
- High strength and stability from laminated, kiln-dried Merbau with GL17 structural rating
- Durable and naturally resistant to termites, rot, and fungi
- BAL29 bushfire compliance for safer use in fire-prone areas
- Non-rebated, dressed all round with eased edges for a clean finish
Note: Merbau is tannin-rich and requires proper preparation and sealing to prevent staining on nearby surfaces during initial weathering.
Shipping options available. In‑store pickup available — contact us for pickup location & hours.