LGSAU builds estimating and design software for Australian construction — turning construction drawings into visual steel models, accurate takeoffs and clear costings.
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One workflow from the drawings you receive to the numbers you send.
Start from the PDF construction drawings supplied by the builder or architect.
Walls, studs, lintels, trusses, columns and beams are modelled in 3D so every member can be checked visually.
Members, plates, bolts and fixings are counted and measured directly from the model.
Quantities roll up into a detailed, structured cost estimate ready to price and send.
Converts PDF construction drawings into visual 3D models and detailed cost estimates for light gauge steel and structural steel framing. Supplied through Ezequote Vietnam to Australian businesses including Langs and Dahlsens.


An affordable alternative to Tekla for LGS and structural steel design, built around Australian sections and fabrication workflows — so smaller builders and detailers can model, detail and quantify steel without enterprise software costs.



Quantities come straight from the 3D model, broken down by member type, connection and level. Below is the takeoff report generated for a demo three-storey steel frame (24 × 15 m, 15 columns).
| Member type | Qty | Mass | |
|---|---|---|---|
| Columns | 15 | 18.05 t | |
| Beams | 66 | 21.88 t | |
| Bracing | 54 | 2.74 t | |
| Secondary beams | 48 | 10.97 t | |
| Stairs | 2 | 275 kg | |
| Railings | 14 | 85 kg | |
| Plates | 515 | 3.92 t |
Our goal is to make construction drawings easier to price, design and build from.
PDF drawings to 3D models and detailed cost estimates for LGS and structural steel.
Tekla-style modelling and detailing for LGS and structural steel, priced for small and mid-sized businesses.
Planned: an immersive 3D viewer that helps site workers understand construction drawings at a glance.