Integrated Partner

Design with Rothoblaas

Rothoblaas manufactures structural screws and connection systems for mass timber, integrated into SPEC Toolbox with ETA-certified data on every product. Size, verify and specify a Rothoblaas connection into the real CLT, glulam or steel your project uses, verified to Eurocode 5 in Europe, AS 1720.1 in Australia, and the NDS in the US. Every value comes from the manufacturer's published assessment, not a generic catalogue number.

Explore The Integrations → Powered by SPEC Toolbox. Free, real certified data on every part.
  • 15 calcs
    CLT tools available
  • 6,000 +
    Engineers using SPEC
  • 12 +
    EU CLT & fastener brands
  • 100 % free
    Browser-based · no download
Integrated product systems available now in Europe, designed to Eurocode 5.

Every Rothoblaas system, ready to design

Integrated product systems available now in Europe, designed to Eurocode 5.

Europe
Bracket connection design icon
Brackets

Brackets

Eurocode 5 (EN 1995-1-1) Calculator →
Europe
Screw connection design icon
Screws

Screws

ETA-11/0030 Calculator →
USA
Screw connection design icon
Screws

Screws

The NDS (ANSI/AWC NDS) under the IBC / IRC Calculator →
In their words

Why Rothoblaas builds on SPEC

“We decided to support SPEC Toolbox because, like Rothoblaas, they are a company that supports the industry with passion and expertise. That combination of passion and know-how is what makes SPEC Toolbox such a great partner.”

Luca Sestigiani, Technical Director – Rothoblaas

Spectoolbox

About Rothoblaas

Founded in 1991 in the Alpine region, Rothoblaas is a leading provider of high-tech solutions for the wood construction sector. The company offers a comprehensive portfolio designed to support projects from foundation to roof, specializing in fastening systems, waterproofing, soundproofing, fall protection equipment, woodworking machinery, and design support.

Driven by a strong dedication to research and development, Rothoblaas consistently delivers reliable and innovative solutions tailored to client needs. Furthermore, their strategic collaboration with CLT Toolbox enhances the precision of mass timber calculations, fostering industry advancement and ensuring all projects meet the highest standards of quality and safety.

Frequently asked questions

Design With Rothoblaas

Is the Rothoblaas calculator free to use?
Yes. Every Rothoblaas calculator on SPEC Toolbox runs free in the browser. No download, no licence, no account needed to design and verify a connection.
What standard are Rothoblaas screws designed to?
In Europe, structural screws are verified to EN 1995-1-1 §8.7 together with the product's ETA. In other regions the same products are checked to the local timber code, AS 1720.1 in Australia, the NDS in the US.
Which Rothoblaas products are integrated?
Integrated products include screws for Europe, North America, Australia and New Zealand, plus hold-downs, angle brackets and plates for shear and tensile loads.
Can I design Rothoblaas connections in CLT from any supplier?
Yes. The calculator lets you select the CLT, glulam or LVL you're specifying from any integrated supplier and verifies the connection against that material's real characteristic density.
Where does the capacity data come from?
Directly from each product's published European Technical Assessment and EAD, and the ICC-ES evaluation report for screws in the USA. Nothing is averaged or re-derived; the applicable assessment is the source of the capacity data, and the calculator updates when it is reissued.
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