The Complete Timber Engineering Toolkit
for Structural Engineers.

Eliminate technical barriers across your whole project. Calculate mass timber, light-frame, and fastener connections to the latest Eurocodes instantly.

Trusted By Engineers & Suppliers

Recent Product Updates

The Fastest Growing Platform for Timber Specification

Release 2.1.10 New Composite Systems: Timber-Concrete Composites & Ribbed Deck Calculators.

Release 2.1.10 New Composite Systems: Timber-Concrete Composites & Ribbed Deck Calculators.

Release 2.1.1 – CLT to Steel Beam Connection Details, Dowel/Bolt Updates, Screw Filtering & More!

Release 2.1.1 – CLT to Steel Beam Connection Details, Dowel/Bolt Updates, Screw Filtering & More!

Release 2.1.3 – Focus on Perpendicular to Grain Compression

Release 2.1.3 – Focus on Perpendicular to Grain Compression

Release 2.1.4 – Fire Design!

Release 2.1.4 – Fire Design!

Release 2.1.5 – New Bracket Calculator Category

Release 2.1.5 – New Bracket Calculator Category

Release 2.1.6 – Major Updates & New National Annexes

Release 2.1.6 – Major Updates & New National Annexes

Release 2.1.7 – Screw Connections

Release 2.1.7 – Screw Connections

Release 2.1.8 – Analysis & One Page Summaries!

Release 2.1.8 – Analysis & One Page Summaries!

SPEC Toolbox Release!

SPEC Toolbox Release!

Our latest Blogs

Explore our newest insights, updates, and expert takes on timber design, engineering, and sustainability.

Your Direct Link to the European Supply Chain

  • Access leading European suppliers directly alongside verified ETAs.
  • Instantly switch between suppliers, grades, or fasteners to optimize your design.
  • Ensure your design can actually be procured and built across Europe.

Automate Calculations. Latest Gen Eurocode Ready.

  • Turn days of manual crunching into minutes of automated analysis.
  • Instantly design CLT floors using the latest generation Eurocode methods.
  • Iterate design changes immediately without rebuilding complex spreadsheets.
  • Free up your time for actual structural engineering.

Not A Black Box

  • Verify every step with transparent, easy-to-follow Eurocode calculations.
  • Visualize flexible support configurations, including cantilevers, instantly.
  • Understand your inputs with built-in, contextual education.

Our Partner Updates

The Fastest Growing Platform for Timber Specification

Testimonials

Hear from the engineers, educators, and students who are using SPEC Toolbox to transform the way they build.

Engineers – Access For FREE

Explore our newest insights, updates, and expert takes on timber design, engineering, and sustainability.

FREE

€0

For individuals and small teams starting their journey.

The free version gives you access to:

  • Advanced CLT design with supply chain
  • Advanced GLT design with supply chain
  • Core and detailed screw calculation modules
  • Hanger design modules 
  • Access to free-tier supply chain partners
  • Collaboration tools (share & chat)
  • Project and calculation duplication
  • Simple and extended PDF report printing
  • Multi-language support 
Access For Free

PRO

€1000 LICENSE YEARLY OR

€300 QUARTERLY

For professionals who need enhanced flexibility, specialized calculators, and access to the pro supplier network.

Everything in the free version plus:

  • Specialized connection calculators (Dowels, Nails)
  • Light-frame construction modules
  • Manual input override for all calculations 
  • Full regional flexibility for design codes and standards 
  • Access to pro-tier supply chain partners
Choose Plan

ENTERPRISE

€X

The complete solution for large companies requiring unlimited licenses, advanced administration, and dedicated support.

Everything in the Pro version plus:

  • Unlimited Pro licenses for your entire company 
  • Advanced user and project management 
  • Ability to add your own custom suppliers and grades
  • Unlimited, dedicated technical support
  • Significant license discounts
Contact Us