The Fastest Growing Platform for Timber Specification
Automate Your Timber Engineering Workflow.
Built for US engineers. Design with built-in NDS codes, and specify directly from leading North American mass timber manufacturers in minutes.
Trusted By Engineers & Suppliers
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Explore our newest insights, updates, and expert takes on timber design, engineering, and sustainability.
Your Direct Link to the US Supply Chain
- Access leading US suppliers tested products and PRG320 standardized grades.
- Instantly switch suppliers to optimize your design.
- Ensure your design can actually be procured and built.
Automate Calculations. Reclaim Your Time.
- Turn days of manual NDS crunching into minutes of automated analysis.
- Access the latest Eurocode methods, fully converted into Imperial units.
- Iterate instantly without rebuilding complex spreadsheets.
- Free up your time for actual engineering.
Not A Black Box
- Verify every step with transparent, easy-to-follow calculations.
- Visualize complex support configurations instantly.
- Understand your inputs with built-in, contextual education.
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
PRO
$1000 LICENSE YEARLY OR
$400 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
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