Purlin and Girt Design Software
The smarter way to design purlins and girts. Automate complex load cases, generate compliant outputs, and move from days of work to hours.
Cut purlin & girt design time by 75%.
Traditional methods are slow, repetitive, and easy to get wrong. PurlinIQ replaces the manual grind with intelligent automation, so your engineers spend their time on decisions, not calculations.
See it in action
Purlin design software that shows its working.
PurlinIQ solves every load combination to AS/NZS 1170.2, checks it to AS/NZS 4600:2018, and hands back bending moment diagrams, span-by-span utilisation and a submission-ready design report. This is a live run. Ten spans of rear girts. No spreadsheets involved.
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AS/NZS 1170.2 load combinations, solved in seconds
PurlinIQ names the critical combo for every span, not one worst case for the whole run. Sidewind governs span 1. Windward takes spans 3 to 8. You see what drove each bay, instantly.
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Bending moment diagrams you can interrogate
Toggle between moment, shear, deflection and reactions. Real continuous beam analysis across lapped purlins and girts, plotted span by span. Never guessed from a span table.
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Strength and deflection utilisation, side by side
ULS and serviceability on one screen. Catch the girt that passes on strength and fails on deflection before your checker does.
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Pass or fail, no spin
Front, rear, left, right, edge purlins. Every run carries a status you can act on. We left the red Failed in this screenshot on purpose. Software that only ever tells you good news is not worth your signature.
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Submission-ready in one click
Export a complete cold-formed steel design report with the working intact. Documentation your checker can follow without picking up the phone.
Why Australian engineers choose PurlinIQ
Hundreds of load cases, solved automatically
AS/NZS 1170.2 and 4600 compliance built in
Fits your workflow
Transparent logic
From input to compliant design in minutes
Purpose-built for Australian engineering teams.
Every check references AS/NZS 1170.0, AS/NZS 1170.2, and AS/NZS 4600:2018 directly. No assumptions hidden from view.
Hundreds of load cases solved automatically.
Every check references AS/NZS 4600:2018 directly. No assumptions hidden from view.
Lysaght, Stramit and Stratco section libraries built in.
Lysaght, Stramit and Stratco section libraries built in
