Carbon-sequestration: how timber can reduce building emissions

The construction industry is on a mission to cut carbon emissions. As a crucial component of the country’s push towards net zero, there is growing pressure across commercial, domestic and public works to reduce reliance on high-footprint materials, which is where timber comes in. Renewable and biodegradable, timber boasts a range of eco-friendly specifications which make it a priority in sustainable construction. Its standout eco-friendly feature, though, lies in its carbon sequestration; a process which is crucial for low-carbon projects.

Learn in this guide what carbon sequestration is and how it boosts the sustainability of the UK construction industry.

What is Carbon Sequestration?

Carbon sequestration is a process which captures and stores carbon dioxide (CO₂). In the case of timber, this happens naturally as trees grow and photosynthesise, absorbing CO₂ from the air and storing it within their fibres, roots and trunks. When timber is harvested and used in construction, the stored carbon remains contained within the material for as long as the timber remains in use, effectively acting as a long-term carbon store, turning decking, cladding and entire buildings into long-term carbon stores.

Timber vs High-Emission Materials

When looking at construction materials, standard alternatives to timber are typically concrete, steel and aluminium. The issue with each of these is that they are highly energy-intensive to produce and release significant amounts of CO₂ into the atmosphere. Steel, for instance, releases approximately 1.4 tonnes of CO₂ per tonne of steel, while concrete stands at around 0.6 tonnes of CO₂ per tonne. 

Timber, on the other hand, is comprised of around 50% sequestered carbon. The world’s forests show widescale sequestration in action, absorbing around 7.6 billion tonnes of CO₂ every year, and playing a significant role in securing the safety of our planet – both for us now, and for future generations.

The Role of Sustainable Forestry

Carbon sequestration works best when timber is sourced from sustainably managed forests. In these systems, harvested trees are replaced with new planting, ensuring forests continue to absorb CO₂ over time in a healthy, long-lasting cycle. As younger and fast-growing trees are particularly effective at carbon uptake, this responsibly managed felling and re-planting can help maintain a continuous cycle of carbon absorption and storage.

At EcoChoice, we supply only timber from sustainable forests. Working with independent certifiers such as the FSC and PEFC, we ensure that your timber is part of a carbon sequestration cycle which continues long after your project is done.

Carbon Sequestration Over Timber’s Lifecycle

The carbon benefits of your PEFC and FSC-certified timber extend beyond the building phase. Over the lifespan of your construction, the timber elements continue to store carbon, as well as bringing other sustainable perks to your project, such as thermal insulation which boosts energy efficiency. At the end of its life, timber can be reused or repurposed, extending the impact of carbon sequestration for a long and sustainable lifecycle. 

Buy Sustainable Timber for Construction

Whether you are working with public-sector sustainability regulations or want to offer more sustainable services to your clients, we can help. EcoChoice supplies a wide range of sustainable timber species, all of which come from responsibly managed forests. Make the most of your eco-friendly construction choices with timber which actually makes a difference.

Get in touch to start an order of sustainable timber.