Tongue and groove board hardwood Bangkirai 550cm (18x145mm)

Tongue and Groove Board Hardwood Bangkirai 550cm (18x145mm)

The Tongue and Groove Board Hardwood Bangkirai 550cm (18x145mm) is a premium tropical hardwood cladding solution known for its exceptional strength, density and long service life. Bangkirai is widely used in demanding exterior applications due to its natural resistance to moisture, insects and harsh weather conditions.

With a long 5500mm length, solid 18mm thickness and a 145mm width, this board is ideal for large-scale façade and exterior cladding projects where durability and a premium finish are essential.

Key Benefits

• Extremely durable tropical Bangkirai hardwood.
• High natural resistance to moisture and decay.
• Strong 18mm solid board construction.
• Seamless tongue and groove connection.
• Ideal for heavy-duty exterior applications.
• Long 550cm length reduces visible joints.
• Premium architectural hardwood appearance.

Applications

This Bangkirai hardwood tongue and groove cladding is suitable for demanding outdoor and architectural projects, including:

• Facade cladding
• Exterior wall cladding
• Garden buildings
• Luxury outdoor structures
• Commercial timber façades
• Carports and shelters
• Coastal and high-moisture environments
• Architectural feature walls

Specifications

Installation

Install Bangkirai boards on a strong, ventilated subframe suitable for hardwood applications. Pre-drilling is recommended due to the density of the wood. Use stainless steel A2 or A4 fixings to prevent corrosion and staining. Ensure proper ventilation behind the cladding for long-term performance.

Maintenance

Bangkirai is naturally durable and can be left untreated to weather to a silver-grey patina. For colour retention, apply a high-quality hardwood oil regularly. Clean surfaces periodically to remove dirt and organic build-up.

Related Products

Complete your project with our decking screws and garden fencing.

How to Install Bangkirai Tongue and Groove Cladding

1. Prepare a strong and ventilated hardwood subframe.
2. Pre-drill all fixing points to avoid splitting.
3. Install a breathable membrane if required.
4. Start installation from the bottom upwards.
5. Fix boards using stainless steel A2/A4 screws.
6. Maintain consistent spacing for natural wood movement.
7. Allow proper airflow behind the cladding.

Frequently Asked Questions

Is Bangkirai suitable for exterior use?

Yes. It is a tropical hardwood specifically suited for demanding outdoor environments.

Does Bangkirai need treatment?

No, it is naturally durable, but oiling is recommended to maintain colour.

Why must stainless steel fixings be used?

Because Bangkirai is dense and can cause corrosion with standard fixings.

Can it be used in coastal areas?

Yes. Its natural resistance makes it ideal for high-moisture and coastal environments.

Does it change colour over time?

Yes. Without oiling it will weather to a silver-grey patina.