Going Beyond the Product
When it comes to specifying fixing systems for engineered timber, structural integrity is only part of the equation. For practices like David Narro Associates, design success also depends on having fast, accurate access to technical data, structural calculations, and BIM integration – something SIHGA® delivers as standard.

“SIHGA have technical data sheets for all their fixings. Combined with BIM and their calculation software, it makes it easy for us as structural engineers. In addition to this, the secret-fix solutions bring significant design benefits.”
STUART LAING, SENIOR PROJECT ENGINEER, DAVID NARRO ASSOCIATES
Supporting Engineering with Technical Certainty
SIHGA’s range of high-performance fixing systems is backed by detailed, downloadable technical data sheets for every product. These documents provide critical information like:
- Load-bearing capacity
- Fastening geometry and spacing
- Compatibility with timber types (e.g. CLT, glulam)
- Design notes and installation guidance
This level of detail allows engineers to make decisions with confidence, knowing that every connector or fixing has been structurally assessed and documented to European standards.

BIM Files and Calculation Tools
To streamline specification and detailing, SIHGA provides BIM files and design software that integrate directly into design workflows. Engineers can quickly test layout options, check load values, and visualise how components fit within their model.
Combined, these resources reduce the friction that often slows down timber design. There’s no need for guesswork or going back and forth on dimensions – everything is provided upfront to make project planning faster, clearer, and more reliable.
Designed for Structure and Finish
While SIHGA’s systems are engineered for performance, they also meet high design expectations. Secret-fix solutions for cladding, decking and timber fins help deliver the clean, uninterrupted finishes that modern timber architecture demands – without compromising structural performance.
With a combination of reliable engineering data, digital tools, and refined detailing, SIHGA helps structural engineers deliver smarter, faster, and more elegant timber solutions.
Need help specifying? Get in touch with our technical team
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