Wood in interior construction is not new. Making a timber-based partition meet demanding fire rules, with a clear path to testing and approval, is a much more specific challenge.
What was developed
Fraunhofer WKI and partners reported a wood-based drywall assembly with specially modified plywood cladding and a fire-resistance duration of at least 60 minutes in the system they tested. The project moved from small specimens to a wall-scale configuration.
The detail in the original report
The researchers describe a fire-protection classification under Germany’s DIN 4102-1 framework. They also say their initial aim of European class A2 under DIN EN 13501-1 could not be achieved. Those are different classification systems, and this distinction matters when a product is specified.
What builders should take from it
This is evidence about a particular assembly and the accompanying testing—not permission to replace plasterboard with ordinary plywood on site. A usable design needs the exact approved construction, appropriate detailing and confirmation against local requirements.
References and original documents
This is an independent explanation, not a hands-on test or endorsement.
- Fraunhofer WKI — Research press release, 3 June 2026
Research and conference demonstrations are not a substitute for qualified procedures, safety training, manufacturer instructions or product approvals in your jurisdiction.