Products
struct.calcpack
struct.calcpack
Requires Autodesk Robot, Tekla Tedds and Microsoft Word or Excel on Windows 10 or 11.
Start from your Autodesk Robot model
struct.calcpack reads geometry, sections and the worst-case axial and moment loads straight from the Robot model. Set concrete grade, cover and fire requirements once.
- Robot geometry and sections
- Worst-case axial and moment
- Grade, cover and fire set once
Every element designed at the click of a button
Columns, beams and walls in RC and steel are designed through Tekla Tedds. A proprietary algorithm chooses the most efficient reinforcement or section, and any error is reported with its reason so it can be fixed.
- RC and steel
- Columns, beams and walls
- Tekla Tedds design engine
- Errors reported with reasons
Calculation packages, ready to issue
Full design calculations saved to PDF, Word or a Tekla .ted file, formatted for checking and submission.
- Word
- Tekla .ted
Accurate rebar estimates for RC structures
Reinforcement quantities for the whole structure exported to CSV for costing and procurement, with rebar factors you control.
- Whole structure
- Main bars and shear links
- Adjustable rebar factors
- CSV export
Embodied carbon for the entire structure
Carbon analysis across every element from an Autodesk Robot or Tekla Structural Designer model, exported to CSV.
- Autodesk Robot or Tekla SD model
- Every element
- CSV export
Oasys GSA, Sofistik and timber next
Support for Oasys GSA and Sofistik is coming, alongside timber structures and more user customisation. Available as a subscription or a one-time purchase.
- Oasys GSA
- Sofistik
- Timber structures
- Subscription or one-time purchase
struct.calcpack automates the design of elements, production of calculation packages, accurate rebar estimates and embodied carbon analysis for RC and steel structures, all at the click of a button.
struct.answer
struct.answer
Reads PDF, JPG and PNG. Windows 10 or 11. Internet connection required.
Upload a file, ask a question
struct.answer reads PDF, JPG and PNG engineering files, from desk studies and reports to borehole logs and drawings, and answers in context.
Tabulate the strata in this borehole log and comment on the composition.
| Depth (m) | Stratum | Description |
|---|---|---|
| 0.0 to 0.6 | Made ground | Brown sandy gravelly clay with brick fragments |
| 0.6 to 3.2 | Firm sandy CLAY | Orange-brown, occasional gravel |
| 3.2 to 7.5 | Dense SAND and GRAVEL | Medium dense becoming dense; groundwater struck at 3.4 m |
| 7.5 to 12.0 | Weathered MUDSTONE | Grey, weak, recovering as gravel-sized fragments |
The profile is typical of a river terrace: a thin cap of made ground over cohesive clay, with the granular sand and gravel from 3.2 m being the first competent bearing stratum.
Summarise long reports in seconds
Turn a desk study or ground investigation report into the points that matter for the design.
Summarise this ground investigation report for foundation design.
- Former industrial site; made ground to 0.6 m with possible contamination, testing recommended.
- Groundwater struck at 3.4 m below ground level, rising to 2.6 m on standing.
- First competent bearing stratum is dense sand and gravel from 3.2 m.
- Report recommends piled foundations or ground improvement for column loads above 600 kN.
Verify calculations against their source
Check the figures in a calculation package against the report or drawing they were taken from.
Do the pile capacity calculations use the parameters from the GI report?
One discrepancy found. The pile calculation assumes a friction angle of 34° for the sand and gravel; the GI report gives 32°.
Re-running shaft and base capacity with 32° reduces the allowable capacity from 936 kN to about 861 kN. That still exceeds the 850 kN working load, but the margin drops from 10% to 1%, so the check should be re-issued.
Check compliance with regulatory requirements
Ask whether a drawing or specification meets a planning condition or code requirement, with the reasoning shown.
Does the finished floor level on this section meet the flood risk condition?
Not yet. The planning condition requires the finished floor level to sit at least 300 mm above the 1 in 100 year flood level of +12.10 m.
The section shows FFL at +12.35 m, a freeboard of 250 mm. Raise the floor by 50 mm to +12.40 m to comply.
A language model tuned on engineering data
Fine-tuned with custom engineering data held in vector databases, validated against a separate dataset, and tailored with customers for niche uses.
How does struct.answer understand engineering context?
It is a large language model fine-tuned on custom engineering data, stored as vector databases the model retrieves from when it reads your file.
After fine-tuning, performance is evaluated on a separate validation dataset and must exceed internal metrics before release. Niche use cases are tailored together with customers.
Your data never trains the model
Uploads are encrypted, processed in an isolated environment for the session only, then deleted. GDPR compliant, and the output is visible only to you.
What happens to the files I upload?
Files are encrypted and processed in a secure, isolated environment for the duration of your session, then deleted immediately afterwards.
No customer data is used to train the model, and the output is visible only to you. This is how we meet GDPR requirements.
struct.answer uses advanced AI to analyse engineering documents like desk studies, reports, borehole logs, and drawings.
Upload, Ask, Answer: Upload files, ask questions, and get instant insights.
Save Time: Cut document review time by up to 90%.
Simplify Complexity: Summarise, verify, and confirm compliance effortlessly.
Boost Accuracy: Ensure no detail is missed with AI-driven precision.
Transform how you manage technical data—quickly, accurately, and efficiently.
Services
Services
Connect any structural software to any other
COM is the information exchange standard for most industry software, and we have extensive experience with it. Our integrations move geometry, loads and results between analysis, design and BIM tools without re-entry.
- COM
- .NET framework
- Python
Custom plugins inside the tools you already use
Plugins for any structural engineering software that supports them. The panel sits inside the host, reads the model, runs your workflow and writes the results back.
- Any software with a plugin API
- Read, design, write back
Independent software built to your needs
Custom structural engineering applications, from calculation engines to complete desktop tools, designed around your practice rather than a template.
- Desktop applications
- Calculation engines
- Your codes and templates
Databases and interfaces made for engineers
Substantial database experience and user-friendly interfaces designed for structural engineers, so the right element, section or result is one click away.
- Project databases
- Interfaces for engineers
- Linked to the model
Linking structural and geotechnical engineering
We are exploring integration of structural software with other domains, starting with geotechnical engineering, so ground investigation data can inform the structural model directly.
- Exploratory
- Borehole data to foundations
Stage checks that follow the programme
Tools that check the frame at every construction stage, temporary conditions and propping included, and re-run the checks when the programme moves.
- Stage-by-stage checks
- Temporary works
- Linked to the programme
Quantities straight from the model
Concrete volumes, reinforcement and steel tonnage taken off the structural model for pricing and procurement, updated whenever the design changes.
- Take-off
- Rebar tonnage
- Steel lists
Schedules the workshop can use
Member and reinforcement schedules generated from the same model as the drawings, sorted and filtered the way fabricators and site teams need them.
- Bar bending schedules
- Steel member lists
- Model-linked
Feasibility in an afternoon
Massing, floor areas and unit counts from plot area, storeys and site coverage, so options can be tested before a design team is appointed.
- GIA and NIA
- Unit counts
- Massing
Compare schemes side by side
Units, cost and embodied carbon for each option in one table, each row linked to its massing, so the trade-offs are visible at a glance.
- Cost
- Programme
- Embodied carbon
Ground risk understood before you buy
Borehole data turned into foundation options and indicative costs early in due diligence, when it still changes the decision.
- Site due diligence
- Foundation options
We provide tailored software solutions for engineering firms, contractors, and manufacturers, transforming complex workflows into streamlined, automated processes. By integrating custom AI-driven tools and workflow automation, struct.digital enables professionals to concentrate on high-value technical work, rather than time-consuming manual tasks.
Our custom solutions cover everything from data extraction, compliance checks, and report generation to design-for-manufacturing (DFM) and cross-disciplinary project management. We help teams across the industry achieve greater efficiency, accuracy, and consistency, allowing them to focus on innovation and project success.
Why built environment firms choose custom software over off-the-shelf tools?
Most engineering and construction software is built for the broadest possible market. That means extensive feature sets, wide platform support, and general-purpose workflows that work adequately for most firms most of the time. For civil engineering firms with complex ground investigation data pipelines, for structural consultancies with high drawing volumes and tight delivery windows, for precast manufacturers with DFM workflows that no standard tool supports natively - adequate is where margin gets lost.
The gap between what generic software provides and what a specific firm needs is almost always filled with manual work. Spreadsheets duplicating data already held in the analysis model. Copy-paste transfers between platforms that should communicate directly. Calculation packages assembled by hand from outputs that a custom tool would compile automatically. Compliance reports populated line by line from templates that never change. Engineers doing work that software should be doing.
We build custom automation software to close that gap across the built environment. struct.answer handles document analysis and query resolution for construction teams working across desk studies, borehole logs, CAD drawings, and specifications. struct.calcpack automates the calculation sequences structural and civil engineers run repeatedly across project typologies. Beyond these products, the custom development practice builds bespoke tools for contractors, geotechnical firms, property developers, and component manufacturers - DFM software, embodied carbon tracking tools, reinforcement optimisation algorithms, and workflow integrations between platforms your team already uses.
The firms that have moved from generic tools to purpose-built built environment software report consistent outcomes: workflows that previously took days now complete in hours, manual handoffs between platforms are eliminated, and senior engineers spend their time on judgment rather than transcription. If your team is carrying manual overhead that your current software stack is not handling, that overhead has a measurable cost per project.