This code details the design considerations, material selection, and construction practices for timber floors in buildings. It emphasizes proper ventilation, damp-proofing, and preservative treatments to ensure the longevity of suspended and solid timber floors.
Construction of Non-load Bearing Gypsum Block Partitions - Code of Practice
Quick Reference Values
minimum bearing of joists50 mm on wall plates or supports
minimum under floor clearance150 mm (for suspended ground floors)
maximum moisture content10% to 14% (depending on climatic zone per IS 287)
standard floor board thickness20 mm to 30 mm depending on joist spacing
Practical Notes
Inadequate ventilation under suspended ground floors is a primary cause of dry rot; ensure adequate cross-ventilation through air bricks.
Always specify preservative treatment as per IS 401 for secondary timber species to prevent termite attack and fungal decay.
Moisture content must be strictly controlled as per the local climatic zone (IS 287) prior to installation to prevent warping and shrinkage of the floor boards.