Teak Wood Properties (Scientific Basis)
1. Natural Oils & Silica Content
- Teak (Tectona grandis) contains oleoresins and natural oils that act as a protective barrier.
- These oils make it highly resistant to moisture, fungal growth, termites, and insects, unlike most other woods.
- The wood also contains silica (SiO₂), which gives it extra hardness and natural weatherproofing.
2. Cell Structure
- Teak has a dense, tight-grained cell structure with small pores.
- This reduces shrinkage and swelling caused by humidity changes, making furniture more dimensionally stable.
- This stability is why teak furniture lasts for decades, even outdoors.
3. High Density & Strength
- Teak wood density averages 650–750 kg/m³, making it strong but workable.
- It has a high tensile and bending strength, meaning it can withstand heavy loads without cracking.
- The Janka hardness rating of teak (~1,000 lbf) is higher than many common furniture woods.
4. Weather Resistance
- Natural oils repel water, preventing rotting in wet climates.
- Furniture left outdoors can withstand rain, humidity, and sun for years without protective coatings.
- UV resistance helps maintain structural integrity over time.