Good industrial shed design starts from the process layout, then fixes clear span and bay spacing, eave height, any crane or mezzanine, roof and wall sheets, ventilation and daylight, the floor slab and drainage, and room to expand. The owner makes these decisions; the structural engineer designs to them. Changing height, cranes or spans after construction is very expensive.
1. Start from the process layout
Machines, material flow, storage and truck movement decide the shed’s shape. Design the shed around the layout, not the other way round.
2. Clear span and bay spacing
Column-free spans give flexibility but need heavier steel. Internal columns, placed where the layout allows, can reduce cost noticeably.
3. Eave height
Set by machines, racking, crane hook height and ventilation. Extra height costs steel and cladding, but adding it later is almost impossible.
4. Cranes and mezzanines
An EOT crane, now or later, changes columns, foundations and crane runway beams. A mezzanine needs to be planned into the frame.
5. Roof and walls
Roof slope, sheet thickness and coating, insulation where heat matters, skylights for daylight and ventilators or louvres for air. In chemical areas, choose sheets and paint for the atmosphere.
6. Floor, drainage and services
The floor slab is designed for machine and forklift loads. Gutters and down-take pipes must handle Vadodara’s monsoon. Leave sleeves and routes for future services.
7. Plan for expansion
Leave one gable end designed to be extended, with space on the plot for the next bays.