Hardwood Decking Boards – Bangkirai, Massaranduba & Kapur

Buy Hardwood Decking Boards Online at Intergard

Looking for a strong, attractive and natural decking material? Hardwood decking boards are a popular choice for garden terraces, patios and outdoor living spaces. Their distinctive grain patterns, rich colours and natural durability make them an appealing alternative to softwood and manufactured decking materials.

At Intergard, we offer tropical hardwood decking in three popular timber species: Bangkirai, Massaranduba and Kapur. Each species has its own appearance, density and performance characteristics, allowing you to choose the material that best suits your project.

Our range includes decking boards in several thicknesses, widths and lengths. Whether you are building a small garden terrace or planning a larger outdoor decking project, you can compare the available products and select suitable dimensions.

Explore our complete range of decking boards or compare hardwood with pressure-treated pine decking and composite decking.

Our Hardwood Decking Range

Bangkirai Decking – Popular Tropical Hardwood

Bangkirai decking boards are widely used for garden terraces and outdoor decking. This tropical hardwood is valued for its density, natural durability and attractive yellow-brown to brown colour.

Bangkirai provides a traditional hardwood appearance and can be suitable for outdoor applications when correctly installed and maintained.

Our listed Bangkirai decking includes boards in 21 x 145 mm, 25 x 145 mm and 28 x 145 mm, depending on the length and product.

Available lengths include options from 215 to 490 cm.

Explore Bangkirai decking boards.

Massaranduba Decking – Dense Hardwood with Rich Colour

Massaranduba decking boards are known for their high density, fine texture and distinctive reddish-brown appearance.

Massaranduba is a popular choice for customers who prefer a darker, richer natural timber finish.

Our listed Massaranduba decking boards have a nominal cross-section of 21 x 145 mm and are available in several lengths, including options from 185 to 580 cm.

As with other dense tropical hardwoods, suitable tools, predrilling and correct fixings are important during installation.

Shop Massaranduba decking boards.

Kapur Decking – Warm Natural Hardwood

Kapur decking boards offer a warm natural appearance with distinctive timber grain and reddish-brown to brown tones.

Kapur can be used for suitable outdoor decking applications, provided its natural durability and installation requirements are appropriate for the intended conditions.

Our listed Kapur decking boards measure 21 x 145 mm and are available in lengths from 215 to 490 cm.

Discover Kapur decking boards.

Why Choose Hardwood Decking?

1. Natural Strength and Density

Many tropical hardwoods are naturally dense and strong, making them suitable for a range of outdoor construction applications.

However, mechanical strength and load-bearing capacity vary between timber species, grades and board dimensions. Structural suitability should always be verified for the intended installation.

2. Attractive Natural Appearance

Hardwood decking offers authentic timber grain, warm colour variations and a distinctive natural finish.

Bangkirai, Massaranduba and Kapur each provide a different appearance, allowing you to choose a decking material that complements your garden design.

3. Natural Durability

Certain tropical hardwoods have good natural resistance to wood-decaying fungi and biological deterioration.

Durability varies between species and between heartwood and sapwood. The actual service life depends on the timber specification, installation, drainage and maintenance.

4. Suitable for Outdoor Living Spaces

Hardwood decking is commonly used for garden terraces, patios, outdoor seating areas and other suitable exterior projects.

5. A Choice of Board Thicknesses and Lengths

Our range includes different board profiles, helping customers select dimensions that suit their decking layout and supporting structure.

Hardwood Decking Sizes Available at Intergard

Our hardwood decking range includes boards in different dimensions, depending on the timber species.

Hardwood species	Listed thicknesses	Width	Listed length range
Bangkirai	21, 25 and 28 mm	145 mm	215–490 cm
Massaranduba	21 mm	145 mm	185–580 cm
Kapur	21 mm	145 mm	215–490 cm

The available dimensions vary by product and not every thickness is offered in every length.

21 mm hardwood decking is commonly selected for suitable domestic garden decking projects.

25 mm and 28 mm hardwood decking provide thicker board options, although the permissible joist spacing and load capacity must still be determined from the relevant product specifications.

Always check the individual product listing for exact dimensions, availability and delivery information.

Bangkirai vs Massaranduba vs Kapur: Which Hardwood Is Best?

All three hardwood species offer an attractive natural decking surface, but their appearance and material characteristics differ.

Feature	Bangkirai	Massaranduba	Kapur
Typical colour	Yellow-brown to brown	Reddish-brown	Reddish-brown to brown
Timber density	Generally high	Very high	Species-dependent
Appearance	Traditional hardwood	Rich, darker timber finish	Warm natural grain
Installation	Predrilling recommended	Predrilling strongly recommended	Follow product instructions
Outdoor suitability	Depends on specification	Depends on specification	Depends on specification

Choose Bangkirai if you prefer a traditional tropical hardwood appearance with warm brown tones.

Choose Massaranduba if you prefer a dense hardwood with a rich reddish-brown colour.

Choose Kapur if you want a warm natural timber appearance and a different hardwood option for your terrace.

The most suitable species depends on the required durability, installation conditions, budget and product specifications.

How Long Does Hardwood Decking Last?

High-quality hardwood decking can provide many years of outdoor service when correctly specified, installed and maintained.

The original Intergard product information refers to a 25-year guarantee and durability class I. However, these claims should be verified for the exact timber species and product before being treated as applicable to every board.

Natural durability is not identical for all hardwood species. Heartwood, sapwood, moisture exposure, installation conditions and maintenance can all influence performance.

To help maximise the service life of your hardwood decking:

• Provide adequate ventilation beneath the boards.
• Ensure rainwater can drain away effectively.
• Use a suitable supporting structure.
• Install compatible corrosion-resistant fixings.
• Remove leaves, algae and debris regularly.
• Inspect the decking and subframe periodically.
• Follow the maintenance recommendations for the specific timber species.

Are Hardwood Decking Boards FSC Certified?

Intergard's original hardwood decking information describes the range as FSC-certified timber from responsibly managed forests.

FSC certification can help demonstrate responsible sourcing and traceability through the supply chain.

However, certification must be verified for the specific product and its associated documentation. A general category description should not be treated as proof that every hardwood decking board carries an applicable FSC claim.

If certified timber is required for your project, request confirmation of the relevant product certification and chain-of-custody information before ordering.

Where Can Hardwood Decking Be Used?

Garden Terraces

Create an attractive outdoor dining or seating area with natural hardwood decking.

Patios and Outdoor Living Areas

Hardwood decking can provide a warm alternative to traditional paving where a suitable supporting structure is installed.

Raised Garden Decks

Hardwood boards can be used in raised decking systems when the subframe, foundations and connections are properly designed.

Outdoor Walkways

Hardwood decking may be suitable for certain garden walkways, subject to slip resistance, load requirements and installation conditions.

Projects Near Water

Some hardwood species can perform well in damp environments, but suitability depends on the specific timber, exposure conditions and construction details.

For commercial, structural or unusually demanding applications, verify the relevant technical specifications before installation.

How Many Hardwood Decking Boards Do You Need?

Calculating the quantity of decking boards starts with the total area of your planned terrace.

Deck area in m² = length x width.

Example: Hardwood Decking for a 20 m² Terrace

Suppose your deck measures 5 metres by 4 metres and you choose hardwood boards with a nominal width of 145 mm.

Using an illustrative 5 mm installation gap:

• Total area: 5 x 4 = 20 m².
• Board module: 145 + 5 = 150 mm, or 0.15 m.
• Estimated board length required: 20 / 0.15 = 133.3 linear metres.
• Using 4-metre boards: 133.3 / 4 = approximately 34 boards before allowing for waste.

Allow additional material for cuts, offcuts, board selection and edge detailing. An allowance of approximately 5–10% may be useful for straightforward layouts.

Important: the 5 mm gap is used for illustration only. Actual board spacing depends on the timber species, moisture content and installation instructions.

How to Install Hardwood Decking in 8 Steps

Hardwood decking requires careful preparation and suitable tools. Dense tropical hardwoods can be more demanding to work with than softwood decking.

Step 1: Plan Your Deck

Measure the installation area and decide on the deck's dimensions, height, board direction and layout.

Step 2: Prepare a Stable Base

Ensure the ground or supporting surface is stable and well drained. Use suitable foundations or supports for the planned structure.

Step 3: Install the Supporting Joists

Construct a suitable subframe using correctly specified joists or bearers. Follow the required joist spacing for the selected hardwood boards and expected loads.

Explore our hardwood construction beams for decking subframes.

Step 4: Allow for Ventilation and Drainage

Provide adequate airflow beneath the decking and ensure that water can drain away freely.

Step 5: Position the First Board

Start from a straight reference edge and maintain the recommended clearance from walls and other fixed structures.

Step 6: Predrill and Fix the Boards

Dense hardwoods generally benefit from predrilling to reduce the risk of splitting and damage to screws.

Use suitable corrosion-resistant fixings and follow the manufacturer's recommendations for screw size, penetration and edge distances.

Explore our decking screws for suitable fixing options.

Step 7: Maintain the Correct Board Spacing

Allow for natural timber movement by following the recommended side gaps, end gaps and expansion clearances.

Step 8: Finish and Inspect the Deck

Trim the edges, inspect the fixings and check that the structure is stable and properly drained.

Apply a suitable hardwood decking finish if required to maintain the original appearance.

Which Screws Should You Use for Hardwood Decking?

Hardwood decking requires suitable fixings capable of securing dense timber to the supporting structure.

Stainless steel decking screws are commonly used for many hardwood decking installations, although the correct grade depends on the timber species and environmental exposure.

Predrilling is generally recommended for dense tropical hardwoods such as Bangkirai and Massaranduba.

The screw length should be selected according to the board thickness, joist material and fixing manufacturer's recommendations.

A screw length of approximately twice the board thickness is sometimes used as a general starting point, but the required penetration and fixing performance must be verified for the installation.

Shop decking screws.

How to Clean and Maintain Hardwood Decking

Regular maintenance helps preserve the appearance and performance of hardwood decking.

Clean the Surface Regularly

Remove leaves, dirt and other debris using a soft brush. Wash the decking with water and a suitable hardwood decking cleaner when required.

Remove Algae and Moss

Keep the surface clean to reduce slippery conditions caused by algae, moss and accumulated dirt.

Avoid aggressive cleaning products or excessive pressure washing, which can damage timber fibres.

Allow the Decking to Dry

After cleaning, allow the wood to dry thoroughly before applying any finishing product.

Use Hardwood Decking Oil if Desired

A suitable hardwood decking oil can help maintain the timber's original colour and reduce surface weathering.

Follow the product instructions and avoid applying oil to damp timber.

Inspect the Decking Structure

Check the condition of the boards, screws and supporting joists periodically. Ensure drainage and ventilation remain effective.

Will Hardwood Decking Turn Grey?

Yes. Most natural hardwood decking gradually develops a silvery-grey appearance when exposed to sunlight and weathering.

This colour change is a normal characteristic of exterior timber and does not automatically indicate structural deterioration.

If you prefer to retain the original brown or reddish-brown colour, use a suitable hardwood decking oil or finishing product according to the manufacturer's instructions.

Common Mistakes to Avoid with Hardwood Decking

Failing to Predrill Dense Hardwood

Installing screws without suitable pilot holes can increase the risk of splitting, screw breakage and installation damage.

Using Inadequate Board Spacing

Hardwood expands and contracts as its moisture content changes. Incorrect gaps can cause problems during service.

Using Unsuitable Fixings

Fixings must be compatible with the timber species, supporting structure and environmental conditions.

Allowing Poor Drainage

Standing water and inadequate ventilation can affect the service life of the boards and supporting structure.

Assuming All Hardwoods Have Identical Durability

Natural durability varies between timber species and grades. Always check the product specifications.

Frequently Asked Questions About Hardwood Decking

What is the best hardwood for decking?

Bangkirai, Massaranduba and Kapur are all options for suitable outdoor decking projects. The best choice depends on appearance, required durability, installation conditions and budget.

How long does hardwood decking last?

Hardwood decking can provide many years of service when correctly installed and maintained. Actual lifespan depends on the species, timber quality, moisture exposure and construction details.

What is the difference between Bangkirai and Massaranduba?

Bangkirai typically has yellow-brown to brown tones, while Massaranduba is known for its dense structure and richer reddish-brown appearance.

Do hardwood decking boards need maintenance?

Yes. Regular cleaning and inspection are recommended. Hardwood decking oil may also be used to help maintain the original colour.

What thickness of hardwood decking should I choose?

Intergard offers hardwood decking boards in 21 mm, 25 mm and 28 mm thicknesses, depending on the species and length. The correct choice depends on the supporting structure and load requirements.

Can I install hardwood decking myself?

Experienced DIY users can install many straightforward garden decks. However, dense hardwood requires suitable tools and predrilling, while raised or structural decks may require professional design.

Buy Hardwood Decking Boards from Intergard

Whether you are building a new garden terrace, upgrading an existing patio or creating a premium outdoor living area, Intergard hardwood decking boards offer natural beauty and a choice of durable tropical timber species.

Explore our Bangkirai decking, Massaranduba decking and Kapur decking to compare dimensions and choose the right boards for your project.

Complete your installation with suitable decking screws and construction beams.

Wholesale Hardwood Decking for Trade Customers

Intergard has been an importer and wholesaler since 1997. We supply hardwood decking, garden timber and outdoor building materials to timber merchants, garden centres, retailers, contractors and other professional customers across Europe.

Looking to buy hardwood decking boards wholesale, by the pallet or in full truckloads? Send us your preferred timber species, dimensions, quantities and delivery destination for a tailored quotation.

Email: info@intergard.eu
Telephone: +31 546 579030

Order your hardwood decking boards online or contact Intergard for competitive wholesale prices.