EPD Database

Embodied Carbon

EPD Database

A new database to provide carbon data for common timber products, allowing specifiers to make more informed decisions.

Charlie Law
Sustainability Director

To achieve national and international targets to reach net zero carbon emissions by 2050, we need to measure, understand, and significantly reduce the embodied carbon within the buildings and infrastructure we construct.


Sustainably grown and harvested timber has a very low carbon footprint compared to many other construction materials, resulting in a lower embodied carbon asset, but this embodied carbon figure will vary depending on the energy inputs during processing for each product, and between the different manufacturers.

Historically, limited data has been available on the embodied carbon within many timber products, but with a continual push for more Environmental Product Declarations (EPDs) for products in construction, more data is becoming available every day. We’ve created our EPD Database to support specifiers to better access and understand these figures.

Using the available independently verified EPDs for timber products, our EPD Database calculates weighted average A1-A4 embodied carbon data for a number of common timber products, including and excluding sequestered carbon, and outlines the methodology for these calculations.

The methodology used for this database is publicly available and independently verified by experts. It has been developed specifically for timber products due to the unique nature of timber supply in the UK – with many individual sawmills and panel mills from the UK, and many other different countries around the world, all supplying the UK market.

This data will be updated annually and verified in accordance with ‘CEN/TR 15941:2010 – ‘Sustainability of construction works. Environmental product declarations’. Methodology for selection and use of generic data.’ by an approved third-party carbon verifier.