Nirmaanpro
Free to use

Intze water tank designer

Design a complete Intze-type elevated water tank — container, staging and foundation — to IS 3370, IS 456, IS 875 (Part 3) and IS 1893 (Part 2). Every input has a note beside it telling you what it means, a sensible value, and where that value comes from. Sketches update as you type.

Read the design guide Design manual (PDF)

What's free, and what costs ₹49

  • Free: every input, the full design, all sketches and every result on screen. Save and reopen as many projects as you like.
  • ₹49 per design, for the PDF: download or print the finished A4 design booklet as a PDF, with title block, sketches, every calculation, a summary bar bending schedule and a sign-off panel. No sign-in and no email needed. One payment covers the design you paid for; a different design is paid for separately.
  1. Fill in the tabsStart with capacity and staging height. Everything else already has a typical value.
  2. Read the note beside each boxIt tells you what the value means and where to get it.
  3. Press “Design my tank”Results, sketches and pass/fail checks appear below, free.
  4. Download the PDFPay ₹49 for this design to print or save the booklet. No sign-in needed.
Project file:
kL
m
ratio
ratio
° from horizontal
ratio
ratio
mm
mm
mm
kN/m²
% of shell weight
m
mm
factor
m/s
factor
factor
mm
N/mm²
N/mm²
kN/m³
kN/m²
m
%
m
mm
kN/m³
Free. Takes a second. The results, sketches and pass/fail checks appear below. Your inputs are kept in this browser, so a refresh loses nothing.
You have changed an input since the last run. Press Design my tank again to refresh the results before you download.
This design booklet can be printed or saved as PDF after paying ₹49 for this design.
Open the page, press “Download PDF” and follow the steps.

Want to check the working by hand?

The Intze Tank — Analysis and Design Manual is a free 115-page PDF that explains the method behind this calculator: how the shell carries load and where the columns go, wind and earthquake, the design of every member from the top dome to the foundation, and one 450 kL tank worked completely through, with a comparison against the RDSO standard drawing B-1235. The calculator opens with that same 450 kL tank, so you can compare the figures. It explains the method; it is not a design certificate.

Download the design manual (PDF) Read the short design guide

Download this design as PDF

₹49

Pay for this design and download the PDF straight away. No sign-in and no email needed. You get:

  • The complete A4 booklet with your title block
  • All sketches, every formula with your numbers, and the check schedule
  • Unlimited downloads of this design from this browser. You can still edit the title block afterwards

Secure payment through Razorpay (UPI, cards, net banking). One payment covers this exact design: if you change any design input it counts as a new design. Your inputs are saved before you leave and the design is rebuilt automatically when you come back.

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Your design has been rebuilt. Press the button, then choose Save as PDF as the printer to keep a copy.