Tongue and groove board hardwood Bangkirai 520cm (18x145mm)

Tongue and Groove Board Hardwood Bangkirai 520cm (18x145mm)

The Tongue and Groove Board Hardwood Bangkirai 520cm (18x145mm) is a premium tropical hardwood cladding board designed for maximum durability, strength and long-term outdoor performance. Bangkirai is widely recognised for its high density and natural resistance to moisture, decay and insect attack, making it ideal for demanding exterior applications.

With a length of 5200mm, a solid 18mm thickness and a 145mm width, this board is perfectly suited for large façade surfaces where durability and a premium architectural finish are required.

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 seamless installation.
• Ideal for heavy-duty exterior cladding.
• Long 520cm boards reduce visible joints.
• Premium natural hardwood appearance.

Applications

This Bangkirai tongue and groove hardwood cladding is suitable for a wide range of demanding projects, 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 material. Always use stainless steel A2 or A4 fixings to prevent corrosion and staining. Ensure proper ventilation behind the cladding for optimal 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 periodically to remove dirt and organic buildup for best appearance.

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 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 designed for exterior applications.

Does it require treatment?

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

Why are stainless steel fixings required?

Because Bangkirai is dense and can react with standard steel, 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.