THE SPECIFICATION LAYER
Design and specify mass timber in one place.
Run CLT, glulam and connection design checks using real supplier product data and supported design standards. Choose products as you design. Free for structural engineers.
Engineering Design Categories · 55+ Supplier Products
Category Coverage Across Every Region
Live from the platform. Crowded categories prove engineer demand. Open ones are a first-mover slot with your name on it. Select a region above to see local coverage.
CLT Design Software for CSA O86
Design CLT to AS 1720.1
Design CLT to Eurocode 5
Design CLT to NDS
Design Dowel & Bolt Connections to AS 1720.1
Design Dowel & Bolt Connections to CSA O86
Design Dowel & Bolt Connections to Eurocode 5
Design Dowel & Bolt Connections to NDS
Design Glulam Beams and Columns to AS 1720.1
Design Glulam Beams and Columns to CSA O86
Design Glulam Beams and Columns to Eurocode 5
Design Glulam Beams and Columns to NDS
Design Ribbed Deck Floors to AS 1720.1
Design Ribbed Deck Floors to Eurocode 5
Design Structural Screw Connections to Eurocode 5
Design Stud Walls to Eurocode 5
Design Timber Brackets and Hold-Downs to Eurocode 5
Design Timber Brackets to AS 1720.1
Design Timber Screw Connections to AS 1720.1
Design Timber Stud Walls to AS 1720.1
Design Timber-Concrete Composite Floors
Design Timber-Concrete Composite Floors
Design Wood Screw Connections to CSA O86
Design Wood Screw Connections to NDS
Verify Mass Timber Acoustic Performance
01 SAVE TIME
Design faster.
Reclaim your time.
- Run checks for CLT, glulam and connections.
- Explore changes without rebuilding spreadsheets.
- Keep your calculations together in one project.
02 DESIGN WITH CONFIDENCE
See the working.
Own the decision.
- Trace the result back to its inputs.
- Understand which checks govern your design.
- Share calculations you can explain.
03 SPECIFY REAL PRODUCTS
From design check
to specified product.
- Compare supplier options without starting over.
- Explore products for your region.
- Keep product selection with your design.
What People Say
Trusted by the engineers who design with it. Backed by the suppliers they specify.
Hear from the engineers and suppliers using SPEC Toolbox to transform the way they build.
engineer
The SPEC Toolbox is an essential piece of software for any organization working with mass timber. It provides efficient workflows for design areas that need to synthesize local and overseas codes, it greatly assists with managing QA and also serves as a solid educational tool for training new team members. The team at SPEC Toolbox have delivered an app that the market really needs.
engineer
SPEC Toolbox has helped simplify the organization and transparency of engineering calculations by providing a one-stop shop for all relevant designs. The explanations attached to the…
supplier
Working with SPEC Toolbox has been a great experience because the platform makes it easier for engineers to quickly access and specify our products, helping streamline workflows and...
engineer
Working with SPEC Toolbox has been a delightfully demanding ride — their professionalism meets our precision, their technology fuels the challenge, and together we turn tough jobs into…
engineer
Having delivered timber structures in Europe, Asia and Australia over 20 years, getting designs approved by local authorities has always been a challenge. SPEC Toolbox has streamlined…
supplier
Creating solutions that improve the wood construction industry is one of the core goals Eurotec and SPEC Toolbox have in common. This in combination with many other shared values and a…
As a solo engineering firm owner, I need reliable, technically accurate and dynamic structural analysis tools. With new framing materials and a constantly changing supply chain,…
An intuitive and powerful tool that makes the assessment of mass timber systems quick, accurate and transparent. Rapid estimations for CLT stiffness and bending strength let our…
supplier
If we want to bring timber construction to a similar level where concrete is today, we need programs like SPEC Toolbox. Timber needs to be easy to calculate and easy to use. If every…
I find SpecToolbox a great substitute for the Excel spreadsheets I build for mass timber design. The printouts and calculations are easy to follow and a great training tool for learning mass timber design, without hiding certain calculations or becoming a black box, unlike some structural programs I have tested. The program provides me with a high level of confidence when checking others' work that may be newer to this type of design. I would recommend this program to anyone new to mass timber or who doesn’t have time to maintain their mass timber design templates that they develop. This program is great for smaller companies looking for an economical solution without paying higher prices for other programs. I find the full printout a great way to show how the program calculates the mass timber design. Still, you can switch to the summarized version to shorten your calculation when developing your calculation package.
Pricing
Design for free. Sponsored by your supply chain.
Supply-chain partners sponsor the platform so engineers design with their certified product data at no cost. No card, no trial clock, no watermark on your workflow.
- Full CLT, GLT & connection calculators
- Certified supplier catalogs built in
- Eurocode 5 · NDS · CSA O86
- PDF design reports
What's New
Releases, partnerships & tutorials
SPEC Toolbox 3.0: every supplier in the category, side by side, live
Frequently Asked Questions
Is SPEC Toolbox really free?
Which design codes does SPEC Toolbox support?
Where does the supplier data come from?
Can my company get our products integrated?
What's the difference between Free and Pro?
Free, browser-based, no download. Design any certified connection into your real materials in seconds.
Start Designing For Free →Get your products in front of every engineer specifying on the platform — at the point of design.
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