Teak: Why It Remains the Standard
Teak (Tectona grandis) contains natural silica and tectoquinone oils that repel moisture and termites without treatment. Its density (630–720 kg/m³) means joints hold firmly under heavy use — a critical property for a sofa frame that takes 100+ kg point loads from sitting positions. Kiln-dried teak (moisture content below 10%) is stable and will not warp in Indian seasonal humidity changes. The limitation is cost — quality teak is ₹800–1,500 per cubic foot, making a teak-framed sofa significantly more expensive to manufacture.