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⚠️ 3D model upload & wind zone detection is still in beta. Meshes are classified with an in-browser trained MLP (IFC type hints when available); wind zones use surface normals vs wind. Low-confidence meshes stay uncoloured.
When enabled, envelope meshes are sent to the cloud for AI review of wind face labels (Pro).
AS/NZS 1170.2 Cl 5.3.4 — internal pressure volume factor from opening ratio (see hover).
From AS/NZS 1170.0 Table 3.3 using Importance Level and Design Life above.
Run site detection to generate topographic profiles.
Professional Wind Load Analysis — AS/NZS 1170.2:2021
StructuralWind is a professional wind load analysis tool built for structural engineers, building designers, and construction professionals across New Zealand and Australia.
Our mission is to make AS/NZS 1170.2:2021 wind load calculations fast, accurate, and accessible — reducing the time spent on manual calculations so engineers can focus on design.
Interactive 3D building model with real-time pressure heatmaps, wind flow particles, and pressure arrows.
GPS-accurate site location with terrain category mapping, shielding analysis, and topographic multipliers.
Full directional wind speed analysis with Md, Mz,cat, Ms, and Mt for every cardinal direction.
Detailed, clause-referenced reports compliant with AS/NZS 1170.2:2021 — ready for council submissions.
External, internal, and local pressure coefficients per Tables 5.1–5.6 with net pressure calculations.
Change any parameter and see results update in real-time — no waiting, no page reloads.
All calculations are performed in accordance with:
StructuralWind is a design aid tool. The engineer of record is responsible for verifying all inputs, assumptions, and results. This software does not replace professional engineering judgement.
© 2026 StructuralWind. All rights reserved. Made in New Zealand 🇳🇿 & Australia 🇦🇺
| SURFACE | DISTANCE FROM EDGE | Ka | Cp,e | Kc,i | Kc,e | Kp | Vsit,β | qz | pe | pnet | |
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| SURFACE | DISTANCE FROM EDGE | Ka | Cp,e | Kc,i | Kc,e | Kp | Vsit,β | qz | pe | pnet | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SURFACE | DISTANCE FROM EDGE | REFERENCE | AREA | Kl | Kc,i | Kc,e | Kp | Vsit,β | qz | Cshp,e | pe | pnet | |
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| SURFACE | DISTANCE FROM EDGE | REFERENCE | AREA | Kl | Kc,i | Kc,e | Kp | Vsit,β | qz | Cshp,e | pe | pnet | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|