AS 4100 Design Software
SkyCiv offers design check software for the Australian Standard AS 4100-1998 (Steel Structures) in two forms; Standalone (free) and Integrated. The structural design software offers a range of powerful features to help you design your steel structures as per the Australian Standards. Includes the following:
- UBs, UCs, Channels, Rectangular Hollow, Circular Hollow
- Moment, Axial, Bending, Shear Capacity and Ratios
- Combined, Buckling Slenderness and Deflection Capacity and Ratios
- PDF Design Reporting (Custom logo on Enterprise)
- View Capacity Results within Model (Integrated Version)
- Import and Apply Multiple Load Combinations as per AS 1170 (Integrated Version)
- Fully verified with third party results
Alongside steel standards, SkyCiv also provides Timber Design Software for engineers working with timber structures.
For more information on other design codes, visit our free structural design software page.
WHY ENGINEERs SWITCH
Structural analysis software that runs the full workflow
Easy and powerful FEA analysis
Run linear, non-linear, buckling and dynamic analysis within a single solver. No separate modules for complex analysis types.
Integrated design checks
Steel, concrete, timber and cold-formed design modules run directly on your analysis results. No exporting, re-entry or version mismatches.
Detailed calculation reports
Every formula, design check and
reference is shown in full, so you can defend every number, not just the result.
Discover key features of SkyCiv Steel Structural Design
What AS 4100 Design Software offers
A full-featured online structural analysis software, including beams, plates and cables
Standalone Version: Free, Fast & Reliable
SkyCiv’s standalone AS 4100 structural design software allows users to manually input members, loads, materials and sections to produce a clean, professional PDF report. It is free to use and also comes with a number of other free structural analysis software to help you get the job done.

Fully Integrated with SkyCiv Structural 3D Analysis Software
To make the job easier, SkyCiv has powerful Structural Analysis software that is completely integrated with AS 4100. Build your model, import AS 1170 load combinations, run the analysis and with a click of a button run an Australian design checks. Work quickly and easily by having your analysis and design completely integrated in one workflow.

Full Calculation Report
See all the calculations with SkyCiv’s clear step-by-step PDF reporting. No more guessing what the software is doing, have all the AS 4100 calculations, assumptions and design criteria clearly labeled so that you have full transparency in what you’re designing.

No Installation Needed. Access immediately from your web browser.
SkyCiv is run 100% online. This means you’ll never have to download, install or maintain your software. It is fully functional on Mac, PC, and even mobile tablets! No more license keys, no more version issues and no more update – just clean, easy and powerful software. Get started on your Eurocode 3 design in just 30 seconds.

supported standards
Globally Supported Design Standards
Capabilities for modelling and analysing simple to complex structures.
DESIGN STANDARDS
Structural design codes
Complete support for local design standards across steel, concrete, timber and more
| Category | Supported Codes |
|---|---|
| Steel design | AISC 360, AS 4100, CSA S16, BS 5950, Eurocode 3 (EN 1993), IS 800, NZS 3404 |
| Reinforced concrete | ACI 318, AS 3600, Eurocode 2 (EN 1992), CSA, BS |
| Timber design | NDS, AS/NZS 1720, Eurocode 5, CSA |
| Cold-formed steel | AISI, Eurocode, AS/NZS 4600 |
| Connection design | AISC 360, Eurocode, AS 4100 |
| Wind and seismic loading |
the skyciv difference
Make the Switch to SkyCiv
Everything your team needs to work faster,
from anywhere.
Import Files with Ease
Bring in your existing work without disruption. SkyCiv S3D supports a wide range of file formats, including DXF, IFC, and Revit, so your team can pick up right where it left off.


Skip the Installation
SkyCiv runs entirely in the cloud. No downloads, updates, or IT setups are required. Simply log in from any browser and start working instantly.
Engineering Support
When issues arise, our qualified engineers will quickly help you resolve them, keeping your projects on track without delays or downtime.


Unlimited Storage
With unlimited cloud storage, your entire team can access and manage files from anywhere. It’s secure, centralized, and built for real-time collaboration.
testimonials
Trusted by thousands
160 +
Countries using SkyCiv
30 min
Average response time
The ease of use and the presentation of the results are both awesome. I have had ongoing interaction with the support team and everyone is excellent.

Mitch Frumkin
CEO OF KIPCON
It was easily the most intuitive package available to learn; it is particularly easy to build the 3D model and define nodes, members, supports, materials, sections, then apply loads & combinations.

Stuart Agars
Managing Director of Struct-Sure Limited
It is used for various civil and mechanical engineering courses and the students love it. We are happy with the continuous updates to SkyCiv as well, highly recommended.

Dr Kenneth R. Leitch
Assoc. Prof. at Texas A&M
SkyCiv has been a great tool to help efficiently and clearly document and update design results for a member of a small company with multiple responsibilities.

Lydia Fahrenkrug
Engineer at MT Solar
case studies
Real projects using SkyCiv
PRICING
Access SkyCiv Quick Design
Flexible plans for every team size.
No lock-in contracts, cancel anytime.
Get in Touch
Location
Unit 510, 55 Holt Street Surry Hills
NSW 2010 Australia








