What is the correct angle to place a ladder?

The ladder should be placed at an angle where the horizontal distance from the base to the support is one-quarter of the working length of the ladder (1 horizontal to 4 vertical rule). (Clause 5.1.2)

What is the minimum height for a guard rail on a scaffolding platform?

The top guard rail should be approximately 1.0 m above the working platform. An intermediate guard rail should also be provided. (Clause 6.4.4)

Is it mandatory to use a safety net?

The code recommends using safety nets where work is done more than 3m above the ground or floor, especially where other measures like scaffolding or safety belts are not practical. (Clause 7.1.1)

What is the minimum width for a scaffolding platform?

For passage only, not less than 600mm. If materials are to be deposited, not less than 800mm. (Clause 6.4.1.1)

IS 13416

: 1992

Safety in working at heights - Code of practice

CurrentEssentialCode of PracticeBIMGeneral · Construction Safety and Practices

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This code of practice provides recommendations for ensuring safety during work performed at heights, primarily in the construction industry. It outlines requirements for planning, supervision, and the safe use of equipment such as ladders, scaffolds, safety nets, and personal protective equipment like safety belts and harnesses.

Lays down safety requirements and precautions for working at heights, including fall protection systems, ladders, and safety nets.

Quick Reference Values

Safe inclination of ladder1 horizontal to 4 vertical (Clause 5.1.2)

Minimum width of a working platform (passageway)600 mm (Clause 6.4.1.1)

Minimum width of a working platform (for materials)800 mm (Clause 6.4.1.1)

Height of top guard-rail on scaffoldApprox. 1 m (Clause 6.4.4)

Minimum height of toe-board on scaffold150 mm (Clause 6.4.4)

Maximum mesh size for personnel safety nets100 mm x 100 mm (Clause 7.1.3)

Practical Notes

This standard is from 1992 and while still in force, it is dated. Refer to the latest National Building Code (NBC), Part 7 for more current and comprehensive practices.

The hierarchy of fall protection (elimination, prevention, arrest) should always be prioritized. Personal fall arrest systems (harnesses) are the last resort.

All equipment for working at height (scaffolds, harnesses, ropes) must be inspected by a competent person before each use and certified periodically.