| Title | लकड़ी के कैंचीदार धरन (Timber Trusses)Rare Lakaṛī ke kain̄cīdār dharan Timber Trusses |
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| Description | लकड़ी के ट्रस (Lakadee Ke Tras), also known as काष्ठ कैंची धरन (Kashta Kainchi Dharan) [1], are structural elements prevalent in Indic heritage architecture, particularly in regions like Kerala and the Himalayan belt. These timber trusses, constructed from species sourced from the Western Ghats and Himalayan forests, exhibit tensile strengths of 50-150 MPa and compressive strengths of 30-70 MPa depending on the दारु (Daru - wood) species. Traditional construction, documented in structures from the Maurya and Gupta periods, employs intricate joinery techniques. The density ranges from 400-800 kg/m³, with a modulus of elasticity between 8-15 GPa. Moisture content typically falls between 12-18%. Conservation efforts address decay caused by biological agents and moisture ingress. Restoration necessitates careful species matching and preservation of original joinery. The chemical composition varies with species, influencing durability. Historical examples demonstrate their use in spanning large distances, particularly in roof construction. [2] [3] |
| Also Known As | Timber Trusses Lakaṛī ke kain̄cīdār dharan Timber Trusses Wooden Trusses Wood Trusses काष्ठ कैंची धरन लकड़ी का ढांचा दारु कैंची धरन மரக் கத்தரிக்கோல் உத்திரம் (Marak kaththarikōl utthiram) చెక్క కత్తెర దూలం (Chekka katthira doolam) ಮರದ ಕತ್ತರಿ ತೊಲೆ (Marada kattari tole) |
| Tags | काष्ठ धरन Kāshtha Dharan Timber Trusses Wood Teak Sal लकड़ी Lakadee Timber Truss Joinery Sagwan |
| Material ID | INHFMAT-271793922-20-11-25-LK |
| URI | https://www.inheritage.foundation/aat/material/timber-trusses |
| API Endpoint | https://inheritage.foundation/api/v1/aat/materials/timber-trusses |
| Total Sites | 3 |
| Primary Sites | 2 |
| Created | November 20, 2025 |
| Last Updated | November 28, 2025 |
| Types | Wood Structural Timber Structural Element Joinery |
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| Regions | Kerala Western Ghats Himalayan Region Karnataka Maharashtra Central India |
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| Time Periods | Ancient Medieval Colonial |
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| Dynasties | Chera Chola Maurya Gupta Rajput |
| Sources | Teak forests of Kerala Sal forests of Central India Deodar forests (Himalayas) Western Ghats forests Himalayan forests |
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| Properties | Tensile strength: 50-150 MPa (depending on species) Compressive strength: 30-70 MPa (depending on species) Density: 400-800 kg/m³ (depending on species) Modulus of elasticity: 8-15 GPa (depending on species) Bending strength: 50-120 MPa (depending on species) Moisture content: 12-18% (depending on species) Thermal conductivity: 0.12-0.18 W/mK (depending on species) |
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| Uses | Roof support in heritage buildings Spanning large distances in traditional structures Creating open spaces in traditional architecture Floor support in historic buildings Bridge construction (historic examples) Framing in traditional construction |
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| Materials | Iron (for fasteners) Lime Mortar (for infill) Nails Resin Brick |
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| Styles | Kerala architecture Colonial bungalow architecture Himalayan architecture Rajput architecture |
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| Categories | Temple roofs Verandas Community halls Temple Residential Buildings Pavilions Temples Public Buildings Palaces |
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| Notes |
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| Title | Type | Notes |
|---|---|---|
| Traditional Timber Structures of India | Book | Details on timber species and joinery techniques |
| Traditional Building Materials of India | Book | Timber construction techniques |
| Handbook of Indian Forest Utilization | Book | Properties and uses of Indian timber species |
| Indian Forest Research Institute Reports | Research Report | Properties and preservation of Indian timbers |
| Site Name | Status | Usage | Confidence |
|---|---|---|---|
| Perth Hindu Temple Canning Vale | Primary | 100% | |
| Sri Karphaga Vinayakar Temple Homebush West | Primary | 100% | |
| Sri Mariamman Temple Singapore | Secondary | 100% |