Kapur timber is highly suitable for decking because of its inherent durability.
Not only does it provide an attractive finish with its complex grain, but it is also prized because it withstands the effects of weather much better than many other timber species.
But just how durable the timber turns out to be is determined by what part of the tree it comes from.
If you take a cross-section of a mature Kapur tree trunk, you will notice two distinct areas.
There is usually a darker coloured core and a usually lighter coloured section that surrounds it.
The inner section is the heartwood. It is essentially dead tree tissue that has hardened and now gives the tree the necessary rigidity and support.
The outer section, which is often characterised by prominent yellow streaks, is the sapwood. It is the living, growing part of the tree that transports water and nutrients throughout the plant.
Advantages:
1. Durability: Kapur wood is resistant to decay, termites, and fungi, making it suitable for outdoor applications like decking and fencing.
2. Strength: It has good mechanical properties, including high density and bending strength, making it suitable for heavy construction and furniture.
3. Workability: Kapur wood is relatively easy to work with, allowing for precise cuts and smooth finishes.
4. Availability: It is widely available in Southeast Asia, making it an accessible and affordable option in the region.
5. Aesthetics: Kapur wood has an attractive reddish-brown color and a moderately coarse texture, which adds to its appeal.
Disadvantages:
.1 Environmental concerns: Over-harvesting has led to deforestation, threatening the sustainability of Kapur wood. It is important to source it from certified, sustainable sources.
2. Weight: Its high density makes it heavy, which can be challenging for transportation and handling.
3. Hardness: The wood’s hardness can cause blunting of cutting tools, requiring frequent sharpening.
4. Shrinkage: Kapur wood is prone to shrinkage and may warp or crack if not dried properly.
5. Limited global availability: Outside Southeast Asia, Kapur wood can be difficult to find and expensive to import.
