IS 4014 Part 1

: 1967

Code of practice for steel tubular scaffolding: Part 1 Unification of dimensions and general requirements

CurrentFrequently UsedCode of PracticeBIMStructural Engineering · Construction Safety and Practices
Download PDFBIS PortalGoogle

This standard specifies the unified dimensions, nominal mass, tolerances, and general material requirements for steel tubular scaffolding. It standardizes tube sizes (primarily 48.3 mm OD) to ensure the safe interchangeability of tubes and scaffold fittings across construction sites.

Covers general requirements and unification of dimensions for steel tubular scaffolding components.

Quick Reference Values
Outside diameter of standard tube48.3 mm
Nominal wall thickness4.0 mm
Nominal mass per metre4.37 kg/m
Tolerance on outside diameter± 0.5 mm
Tolerance on mass (single tube)-7.5% to +10%
Minimum yield stress of steel tube210 MPa (21 kgf/mm²)
Practical Notes
Always verify that scaffolding tubes strictly adhere to the 48.3 mm OD standard; using non-standard diameters can lead to fatal fitting slippage.
Inspect reused tubes frequently for internal and external corrosion, as rust significantly reduces wall thickness, mass, and overall buckling capacity.
Ensure that couplers and fittings used with these tubes comply with IS 2750.