IS 8640:1977 is the Indian Standard (BIS) for recommendations for dimensional parameters for industrial building. This standard provides recommendations for the dimensional parameters of single-storey industrial buildings to promote modular coordination and economy. It suggests preferred spans, bay spacings, and heights for structural frames, facilitating the use of standard components and simplifying design and construction.
Recommendations for dimensional parameters for industrial building
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Basic Module (M) | 100 mm | 100 mm | ISO 1006:1983 |
| Primary Horizontal Multimodule | 300 mm (3M) | 300 mm (3M) | ISO 1040:1983 |
| Vertical Dimensioning Increment | Increments of 600 mm (6M) for clear heights | 100 mm (M) is the basic increment, with 300mm (3M) and 600mm (6M) as preferred multimodules for storey/room heights | ISO 6512:1982 |
| Typical Column Spacing (Bay Length) | Preferred 6.0 m; others 7.5 m, 9.0 m, 12.0 m | 25 ft to 30 ft (approx. 7.6 m to 9.1 m) is typical, based on purlin economy | AISC Design Guide 7 |
| Typical Column Spacing (Span/Width) | Recommended in 3.0 m increments: 18 m, 21 m, 24 m, 30 m | 60 ft to 100 ft (approx. 18 m to 30 m) is common, based on function and truss economy, not a strict module | AISC Design Guide 7 |
| Vertical Clearance (Top of Crane to Roof) | 150 mm to 500 mm depending on roof type | Minimum 6 inches (152 mm) | AISC Design Guide 7 |
| Horizontal Clearance (Crane to Column) | 600 mm or 750 mm (runway gauge to column C/L) | Minimum 1 ft (305 mm) from crane to face of column is good practice | AISC Design Guide 7 |