Integrated Partner

Design with Binderholz CLT & Glulam

Binderholz manufactures CLT and glulam for mass timber, integrated into SPEC Toolbox with real production data on every panel. Size, verify and specify a Binderholz floor or wall build-up into the project you're designing, verified to Eurocode 5 (ETA-06/0009) in Europe and Australia and ICC-ES ESR-4081 in the US. Every value comes from Binderholz's published product specification, not a generic catalogue number.

Explore The Integrations → Powered by SPEC Toolbox. Real ETA-06/0009 and ICC-ES ESR-4081-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 across Australia, Europe and the USA.

Every Binderholz system, ready to design

Integrated product systems available now across Australia, Europe and the USA.

Europe
CLT (cross-laminated timber) design icon
CLT

CLT

Eurocode 5 (EN 1995-1-1) Calculator →
USA
CLT (cross-laminated timber) design icon
CLT

CLT

the NDS (ANSI/AWC NDS) under the IBC / IRC Calculator →
Europe
Glulam beam and column design icon
Glulam

Glulam

Eurocode 5 (EN 1995-1-1) Calculator →
USA
Glulam beam and column design icon
Glulam

Glulam

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

Why Binderholz builds on SPEC

“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 building in timber is treated as a special one off, it will never come out of the shadow and be used the way other materials are used.”

— Wolfgang Hebenstreit, Head of International Sales BBS (CLT), Binderholz

SPEC Toolbox Partner

About Binderholz

Binderholz is an Austrian family-managed wood products and mass timber company, headquartered in Fügen, with a long history in solid wood processing and timber construction. Over the years, the company has grown into one of Europe’s leading suppliers of solid wood solutions, serving projects from residential buildings to large-scale commercial and industrial timber structures.

Binderholz’s flagship mass timber products include Binderholz CLT BBS, glulam, solid structural wood KVH®, and solid wood panels, supported by a broad portfolio of approvals, certifications, and technical documentation. With a comprehensive product range, international manufacturing footprint, and strong commitment to certified timber innovation, Binderholz remains a trusted partner for architects, engineers, and contractors.

Frequently asked questions

Design With Binderholz

Is the Binderholz calculator free to use?
Yes. Binderholz calculators are free to use on SPEC Toolbox. No download, no license, no account needed to design and verify with real manufacturer data.
What standard are Binderholz CLT and glulam designed to?
Binderholz Brettsperrholz BBS CLT is verified to European Technical Assessment ETA-06/0009 (DIBt, cross-referenced to Eurocode 5) in Europe and Australia, and to ICC-ES ESR-4081 in the US.
Which Binderholz products are integrated?
CLT and GLT are integrated for Australia, Europe and the USA. 2 product systems in total. Switch region to see the set for other markets.
Can I design connections into Binderholz CLT and glulam using any supplier's screws or brackets?
Yes. The calculator lets you pair Binderholz CLT and glulam with screws or brackets from any integrated supplier, verifying the connection against Binderholz's real material properties.
Where does the capacity data come from?
Directly from Binderholz's published ETA-06/0009 (EU/AU) and ICC-ES ESR-4081 (USA) certifications. Nothing is averaged or re-derived.
FOR ENGINEERSStart designing now

Free, browser-based, no download. Design any certified connection into your real materials in seconds.

Start Designing For Free →
FOR SUPPLIERSBecome a partner

Get your products in front of every engineer specifying on the platform — at the point of design.

Get Your Products Specified →
Close Menu