Create
Wrap the tank.
Generate clean 3D solids, stringers, steps and railing geometry matching tank diameter.
Equipment access / v1.1
Tank spiral stairs.
Wrapped with precision.
Build parametric spiral stairs around storage tanks in Plant 3D. Control step geometry, configure landing elevations and edit 3D models with one command.
Plant 3D 2021–2027Windows 64-bit
Product preview
What it does
Generate parametric spiral stairs wrapped around cylindrical storage tanks. Set radius, height, step angles and landing elevations with full parametric control in AutoCAD Plant 3D.
Main commands
CDTANKSTAIRCreate parametric spiral stair around tank center.CDTANKSTAIREDITReconfigure and rebuild existing stair models.
Configure
Match project standards.
Control riser height, tread width, intermediate landing elevations and handrail clearances.
Edit
Modify anytime.
Select any existing stair to adjust pitch angles, landing levels, or dimensions without starting from scratch.
Getting started
Ready for your workflow.
Run the CDTANKSTAIR command in Plant 3D after installation.
For supported cylindrical equipment and storage tanks in AutoCAD Plant 3D. Generates 3D layout geometry; structural calculations and local code verification remain the responsibility of the engineer.
COMMUNITY & QUESTIONS
Questions & Reviews
Hello, excellent tool for Plant 3D. Is this program a full lifetime license or does it expire some time?
2 Nov 2026, 21:09:13
Hi, thank you for the feedback. Once purchased, you receive an activation code for a full, permanent license on your computer with no expiration date.
Have a question or feedback?
Ask a question about licensing or share your thoughts with the developer.
Need a hand getting started?
Installation, activation and answers to common questions.