STATIX is a single-file structural suite that runs entirely in your browser — no install, no cloud, no licence dongle. 3D frame FEM, multi-code member design, whole-frame shell FEM, and a component-based FEM (CBFEM) Connection Studio, all in one file that opens on a flight or an air-gapped machine.
14-day full-feature Pro trial · no credit card · your models never leave your machine.
Frame analysis, member design, FE slabs, connection CBFEM and code-checked reports — in one offline file, instead of juggling several desktop packages and licence servers.
A full 6-DOF 3D stiffness solver — dense LU for small models, sparse PCG for large ones — with P-Δ second-order, modal and linear buckling, auto-routed for speed.
A real CBFEM shell solver with weld lines, bolt springs, unilateral lift-off contact and coupled plasticity — plus a 3D editor for plates, hex bolts and welds.
One HTML file, no install, no internet. Open it on site, on a flight or on an air-gapped machine — your models never leave your laptop.
Switch between SANS 10162-1, EN 1993, AISC 360 LRFD, CSA S16 and AS 4100 without rebuilding — the same frame, checked to the standard you need.
Read existing .sumo SQLite models from other analysis software — nodes, members, sections, supports, loads and results — then cross-check them against the STATIX solver.
A built-in validation suite re-runs the real engine against closed-form benchmarks (Euler, Timoshenko plate theory, EN 1993-1-8 bolt tables) and prints a PASS/FAIL report.
Drawn straight from the STATIX feature map — modelling, analysis, design, connections, slabs, interop, document model and reporting.
.json projects, .skf exchange, DXF underlay and GA drawingsThe Connection Studio brings component-based finite element (CBFEM) connection design to a single offline file. Build any steel connection in a true 3D editor, pull the member forces from the solved frame, and watch plate stress, bolt forces and component utilisations update.
Honest note. The CBFEM capacity is still being calibrated against EN 1993-1-8; treat outputs as a fast, code-aware design aid and have a registered engineer confirm every production connection.
See it in action
STATIX imports industry-standard formats from other analysis software. It reads .sumo files directly — a built-in SQLite reader pulls nodes, members, sections, supports and loads into a live STATIX model, then cross-checks the imported results against its own FEM solver. From there, exchange with the rest of your BIM stack.
.sumo SQLite model import with a results cross-check.json projects
From the start page to full CBFEM stress contours — a clean, modern UI built for practising structural engineers.
One model, five member-design standards — switch the design code without rebuilding anything.
An honest contrast: STATIX is the only one of the three that does both full SA-code analysis and arbitrary CBFEM connections in one browser tab. It is younger than the incumbents and some engines are still being calibrated — we say where.
| Capability | STATIX | The leading desktop package | Leading connection-design software |
|---|---|---|---|
| 3D frame FEM analysis | Yes | Yes | Limited |
| P-Δ, modal & linear buckling | Yes | Yes | No |
| CBFEM connection design | Yes — calibrating | Library checks | Industry benchmark |
| FE slabs / shell FEM | Yes — v1 | Yes | Plate add-on |
| Multi-code member design | 5 codes | SANS / EN | EN / AISC+ |
| SANS 10160 / 10162 native | Yes | Yes | No |
| Runs fully offline | Yes | Yes | Licence server |
| No install — runs in a browser | Yes | Desktop | Desktop |
| Cross-platform (Win / Mac / Linux) | Yes | Windows | Windows |
| Imports .sumo models | Yes | Native | No |
| Analysis + design + connections in one suite | Yes | Module bundle | Connections only |
| Maturity / track record | New — 2026 | Established | Established |
| Indicative price (annual, SA incl VAT) | ~R11,500 | ~R71,840 | ~R58k–R82k |
Comparison columns refer to the leading desktop analysis package and leading connection-design software; any third-party products are the property of their respective owners and are referenced for capability context only. Competitor prices are indicative SA figures (mid-2026) and may change. STATIX results must be verified by a qualified engineer; the CBFEM and shell-FEM engines are being calibrated, and we flag that openly rather than overclaim.
No dongles, no per-module nickel-and-diming. Annual billing shown; pay annually and get two months free. Prices in ZAR (USD shown alongside), VAT handled at checkout.
Evaluate the full Pro suite
approx. US$690/yr · or R1,150/mo
For the practising PrEng
Founder offer: R8,900/yr locked for life — first 100 firms.
min. 3 seats · or R44,000/yr flat for 5
Teams & small practices
| Capability | Trial | Pro | Office |
|---|---|---|---|
| Open / view models & reports | ✓ | ✓ | ✓ |
| Build & edit 3D frame models | ✓ | ✓ | ✓ |
| Linear FEM analysis | ✓ | ✓ | ✓ |
| P-Δ / modal / buckling | ✓ | ✓ | ✓ |
| Multi-code member design (steel / RC / timber) | ✓ | ✓ | ✓ |
| FE slab / shell FEM + Wood-Armer | ✓ | ✓ | ✓ |
| Foundations (pads / piles / rafts) | ✓ | ✓ | ✓ |
| Connection Studio — full CBFEM | ✓ | ✓ | ✓ |
| Node-based “design a connection at any joint” | ✓ | ✓ | ✓ |
| SAF / IFC / .sumo model BIM interop | ✓ | ✓ | ✓ |
| Unwatermarked branded reports (PrEng block) | watermark | ✓ | ✓ |
| Air-gapped / on-prem deployment | – | – | ✓ |
| Multi-seat & named-contact support | – | single seat | ✓ |
| Seats | 1 (14 days) | 1 (add seats) | 3–10 |
Indicative pricing for the 2026 launch and subject to change. A registered professional engineer must confirm every production design regardless of tier.
STATIX puts a full structural office — analysis, connections, slabs, foundations and reports — into a single offline file. No install. No cloud. No compromise.
STATIX is the work of the STATIX design team, in South Africa — built out of a simple frustration: the tools a small practice needs are split across several expensive, desktop-only, dongle-bound packages, and none of them does both full SA-code analysis and arbitrary CBFEM connection design.
So STATIX puts a full 6-DOF FEM solver, multi-code member design, FE slabs, a component-based FEM (CBFEM) Connection Studio and submission-ready reporting into a single offline HTML file — engineered to be honest about what it can and cannot yet do.
Professional responsibility. STATIX is a fast, code-aware design aid. It does not replace engineering judgement, and a registered professional engineer must confirm every production design.
Get in touchAuthor & developer of STATIX · South Africa
Author and developer of STATIX. Bringing complex steel connection design and full SA-code structural analysis into the browser, at a fraction of the price of the desktop incumbents.
info@statix.engineering