With the release of IS 1893:2025, many structural engineers in India are asking a very practical question:
“Should I immediately start structural designing as per the latest code?”
The ideal answer sounds simple — always use the latest codes.
But the ground reality of practice is slightly different.
Let’s discuss this from a practical engineer’s perspective, not just a theoretical one.
1. Using the Latest Codes – Always Recommended, But Not Always Immediately Possible
From a professional and ethical standpoint, it is always recommended to design structures using the latest versions of Indian standard codes.
Codes evolve based on:
- New research
- Past earthquake performance
- Improved understanding of earthquake resistant house design
- International best practices
IS 1893:2025 is no exception. It introduces changes that aim to make our structures safer and more resilient, ensuring a safe structural design.
However, most of us rely heavily on commercial structural engineering software like ETABS, STAAD, SAFE, etc. These software packages:
- Take time to fully implement new code provisions
- May initially support only partial clauses
- Often lag behind code revisions by months (sometimes years)
So, even if the code is released, practical implementation for structural designing is not always immediately feasible.
2. Do We Have a Choice? Reality Says No
In the transition period, structural engineers often have no option but to continue using older versions of IS 1893, such as IS 1893:2016.
This is because:
- Software validation for new clauses is pending
- Design checks are not automated
- Manual implementation for complex buildings is not always realistic under project timelines
In such cases, using the older code is not negligence — it is a practical necessity for safe structural design.
3. Is It Safe to Use Older Versions for the Time Being?
Yes — in most cases, it is safe for the time being, provided:
- The older code was widely accepted and practiced
- The structure is designed conservatively with earthquake resistant house design principles
- Engineering judgment is applied properly
- Additional checks are carried out where required
Remember:
Codes are not rewritten from scratch. They are refinements of existing philosophy.
Structures designed as per IS 1893:2016 have performed reasonably well when:
- Load paths are clear
- Ductile detailing (IS 13920) is followed properly
- Soil–structure interaction is considered carefully
So, using an older version during the software transition phase is acceptable and defensible for structural designing.
4. What Should Engineers Do During This Transition Phase?
Instead of blindly waiting or blindly switching, a balanced approach is recommended:
- Stay updated with major changes introduced in IS 1893:2025 under Indian standard codes
- Understand how these changes impact your current structural designing
- Where possible, manually incorporate critical clauses
- Document assumptions clearly in design notes
- Be transparent with clients and authorities if required
This shows professional responsibility and protects structural engineers technically and legally.
5. The Right Mindset Going Forward
Using older codes temporarily does not make you outdated. Ignoring the new code altogether does.
The goal should be:
- Gradual transition
- Informed judgment
- Safety first, software second with structural engineering software
As software updates stabilize, engineers should progressively shift to IS 1893:2025 in full spirit for structural designing.
Final Thought
Engineering is not just about software buttons — it is about judgment.
Till our tools catch up with IS 1893:2025, structural designing with older versions can be safe, acceptable, and professional, as long as we remain aware, cautious, and responsible, ensuring safe structural design.
Explore more: If planning to build your dream home?
Check outEternal Foundations—a helpful guide to building a strong, safe home that lasts for generations.📩 For a free e-book, email me at kapil.chawla@tesproconsultants.com