The most valuable timber may be obtained from ..........
Defining "Value" in Timber
The "value" of a timber is determined by a combination of its properties: durability (resistance to rot and insects), strength, workability, dimensional stability (low shrinkage), and aesthetic appearance. A timber that scores highly in all these categories is considered highly valuable and is sought after for high-end applications.
📝 Detailed Analysis of the Options
(a) Chir
Chir (or Pine) is a softwood. While it is widely used in construction for packing cases, frames, and shutters, it is not very strong or durable and requires preservative treatment. It is considered an economical, not a valuable, timber.
(b) Shisham
Shisham (Indian Rosewood) is a very strong, tough, and durable hardwood with an attractive grain. It is highly valued for high-quality furniture and decorative work. It is a valuable timber, but generally not considered as premier as Teak.
(c) Sal
Sal is an extremely heavy, hard, and strong hardwood. It is highly durable and is a primary structural timber in India, used for railway sleepers, beams, and bridges. While incredibly useful and valuable for its strength, its primary value is structural rather than decorative.
(d) Teak
This is the correct answer. Teak is widely regarded as one of the most valuable timbers in the world. It possesses an exceptional combination of qualities:
- High Durability: It contains natural oils that make it highly resistant to rot, fungi, and termites.
- Excellent Strength: It is strong and hard-wearing.
- Low Shrinkage: It has excellent dimensional stability and does not warp or shrink much.
- Workability: It is relatively easy to work with.
- Appearance: It has a beautiful golden to dark brown color and grain.
📊 Comparison of Valuable Timbers
| Timber | Type | Key Strengths | Primary Use |
|---|---|---|---|
| Teak | Hardwood | Durability, Stability, Appearance | Shipbuilding, high-end furniture |
| Sal | Hardwood | Extreme Strength, Hardness | Heavy structural work (sleepers, beams) |
| Shisham | Hardwood | Strength, Toughness, Decorative Grain | High-quality furniture, cabinetry |
| Chir | Softwood | Economical, Lightweight | Packing cases, general construction |
💡 Study Tips
- Teak is King: In the world of timber, Teak is often considered the "king" due to its unparalleled combination of durability, stability, and beauty.
- Distinguish Value from Strength: While Sal is arguably one of the strongest timbers, Teak's overall package of properties (especially its resistance to water and rot) makes it more versatile and thus more valuable for a wider range of premium applications.
- Hardwood vs. Softwood: Remember that hardwoods (Teak, Sal, Shisham) are generally more valuable than softwoods (Chir/Pine).