best wood CLT BOX - EPD

Q: What product is declared in this EPD and what is the declared unit?

The declared product is the best wood CLT BOX, and the declared unit is 1 m³. The product consists of best wood CLT with three glued-on GLULAM ribs and a CLT cover.

Q: Which standards and verification framework are referenced?

The declaration uses EN 15804 as the core PCR and follows ISO 14025:2011 for independent verification of the declaration and data.

Q: Where is best wood CLT BOX intended to be used?

It is used in the structural area of modern timber construction, including residential, industrial, and bridge construction. It can be used in utilisation classes 1 and 2 according to EN 1995-1-1.

Sep 2, 2026

Upload by Clementine

Environmental Product Declaration (EPD) for best wood CLT BOX, defining the declared product unit as 1 m³ and specifying ownership, programme holder, declaration number, validity period, and the applicable core PCR based on EN 15804. The declaration covers independent verification under ISO 14025:2011 and describes product structure (best wood CLT with three glued-on GLULAM ribs and a CLT cover), application fields in timber construction, and key technical performance parameters. It also reports biogenic carbon content and includes transport, energy, and end-of-life stage data.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages10

Reading Time25 min

AccessFree to download

Product

Product description and application

Technical data

Declaration details

Verification and PCR basis

Validity and declaration number

Environmental performance data

| Owner of the Declaration Publisher
Programme holder Declaration number Issue date
Valid to | Holzwerk Gebr. Schneider GmbH
Institut Bauen und Umwelt e.V. (IBU)
Institut Bauen und Umwelt e.V. (IBU)
EPD-HWS-20240042-IBA1-EN
04.04.2024
03.04.2029 | | --- | --- | | Programme holder
IBU – Institut Bauen und Umwelt e.V.
Hegelplatz 1
10117 Berlin
Germany | | --- | | Declaration number
EPD-HWS-20240042-IBA1-EN | | Owner of the declaration
Holzwerk Gebr. Schneider GmbH
Kappel 28
88436 Eberhardzell
Germany | | --- | | Declared product / declared unit
1 m³ Hohlkastenelement best wood CLT BOX | | The standard EN 15804 serves as the core PCR | | --- | | Independent verification of the declaration and data according to ISO
14025:2011 | | internally X externally
| | 2. Product | | | | | --- | --- | --- | --- | | 2.1 Product description/Product definition
The best wood CLT BOX product consists of best wood CLT with three glued-on GLULAM ribs and a CLT cover. The wooden box element is a statically effective and at the sametime space-creating wood element, which is suitable for all ceiling requirements thanks to its versatile dimensions and construction characteristics. Regulation (EU) No. 305/2011 (CPR) applies to the placing on the market of the product in the EU/EFTA (with the exception of Switzerland) . The product requires a declaration of performance in accordance with ETA21/0336 dated 17/04/2021 based on EAD 140022-00-0304 for prefabricated load-bearing panels made of wood and woodbased materials and CE labelling.
The respective national regulations apply for use
2.2 Application
The product best wood CLT BOX is used in the structural area of modern timber construction. The areas of application include residential, industrial and bridge construction. It can be used in utilisation classes 1 and 2 in accordance with EN 1995-1-1.
2.3 Technical Data
The technical construction data shown below is valid for the product best wood CLT BOX as delivered. Depending on the cross-section structure (number of ribs, rib width and height) and the load position of the best wood CLT BOX, the physical building properties such as component resistance or fire resistance vary. The design is carried out in accordance with EN 1995-1-1; the best wood STATICS software is available for preliminary design.
Technical construction data | Name | Value | Unit | | | Wood types by trade names according to EN 1912 | Spruce,fir | - | | | Wood moisture according to EN 13183-1 | < 15 | % | | | Use of wood preservatives (the test rating of the wood preservative in accordance with DIN 68800-3 must be specified) | not available | - | | | Compressive strength parallel according to EN 1995 | - | N/mm2 | | | Compressive strength rectangular according to EN 1995 | - | N/mm2 | | | Tensile strength parallel according to EN 1995 | - | N/mm2 | | | Tensile strength rectangular according to EN 1995 | - | N/mm2 | | | Shear strength according to EN 1995 | - | N/mm2 | | | Shear modulus according to EN 1995 | - | N/mm2 | | | Dimensional deviation (length) | ±5 | mm | | | Dimensional deviation (width) | ±2 | mm | | | Dimensional deviation (height) | ±2 | mm | | | Gross density of load-bearing components according to EN 338 or DIN 1052, non-bearing components: according to DIN 68364 | 430 | kg/m3 | | | Surface quality (possible forms are tobe specified) | Visisble
quality, non
visible quality | - | | | Thermal conductivity according to EN 12664 | 0,12 (board)
0,13 (rib) | W/(mK) | | | Specific heat capacity according to EN 12664 | 1.6 | kJ/kgK | | | Water vapour diffusion resistance factor according to EN ISO 12572 | 20 (moist) 50
(dry) | - | | Name | Value | Unit | | --- | --- | --- | | Coniferous wood | approx. 90,5 | % | | Water | approx. 9,0 | % | | Glue | approx. 0,5 | % | | Name | Value | | --- | --- | | Building material class | D | | Burning droplets | d0 | | Smoke g

FAQs

What product is declared in this EPD and what is the declared unit?

The declared product is the best wood CLT BOX, and the declared unit is 1 m³. The product consists of best wood CLT with three glued-on GLULAM ribs and a CLT cover.

Which standards and verification framework are referenced?

The declaration uses EN 15804 as the core PCR and follows ISO 14025:2011 for independent verification of the declaration and data.

Where is best wood CLT BOX intended to be used?

It is used in the structural area of modern timber construction, including residential, industrial, and bridge construction. It can be used in utilisation classes 1 and 2 according to EN 1995-1-1.

Sep 2, 2026

Upload by Clementine