Tongue and groove board hardwood Bangkirai 430cm (18x145mm)

Tongue and Groove Board Hardwood Bangkirai 430cm (18x145mm)

The Tongue and Groove Board Hardwood Bangkirai 430cm (18x145mm) is a premium tropical hardwood cladding solution designed for exceptional durability, strength and long-term outdoor performance. Bangkirai is widely used in demanding exterior applications thanks to its high density and natural resistance to moisture, decay and insect attack.

With a length of 4300mm, a solid 18mm thickness and a 145mm width, this board is ideal for medium-sized façade and exterior cladding projects where reliability and a premium natural finish are essential.

Key Benefits

• Extremely durable Bangkirai tropical hardwood.
• High resistance to moisture, decay and insects.
• Solid 18mm thickness for structural strength.
• Tongue and groove system for a seamless finish.
• Ideal for heavy-duty exterior cladding.
• Natural premium hardwood appearance.
• Long-lasting performance in outdoor environments.

Applications

This Bangkirai tongue and groove hardwood cladding is suitable for a wide range of outdoor applications, including:

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

Specifications

Installation

Install Bangkirai boards on a strong, ventilated subframe suitable for hardwood applications. Pre-drilling is strongly recommended due to the density of the wood. Always 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 periodically. Regular cleaning helps maintain a clean surface and prevents organic buildup.

Related Products

Complete your project with our decking screws and garden fencing.

How to Install Bangkirai Tongue and Groove Cladding

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

Frequently Asked Questions

Is Bangkirai suitable for outdoor use?

Yes. It is a highly durable tropical hardwood ideal for exterior applications.

Does it require treatment?

No, but oiling is recommended to maintain its natural colour.

Why must stainless steel fixings be used?

Because Bangkirai is dense and can react with standard metals, causing corrosion.

Can it be used in coastal areas?

Yes. It performs very well in high-moisture and coastal environments.

Does the colour change over time?

Yes. Without treatment it will naturally weather to a silver-grey finish.