Sustainable materials: making better choices for people and the planet
The materials used to make the products, buildings and infrastructure around us have a lasting impact. From the clothes we wear to the homes we live in, every material has a story: where it came from, how it was made, how long it will last and what happens when it is no longer needed. Choosing sustainable materials can help reduce environmental harm while supporting healthier, more resilient communities.
What makes a material sustainable?
There is no single definition that applies to every material. Sustainability depends on its full life cycle, including the resources used to extract or grow it, the energy and water needed to process it, the conditions in which it is produced, its transport, and whether it can be repaired, reused or recycled.
A material is generally considered more sustainable when it:
- comes from renewable or responsibly managed sources;
- uses fewer raw materials, less energy and less water in production;
- is durable, repairable and safe for people and wildlife;
- contains recycled or reclaimed content where appropriate;
- can be reused, recycled or safely returned to the natural environment at the end of its useful life; and
- is produced with respect for workers and local communities.
Examples of sustainable materials
Recycled and reclaimed materials
Recycled materials can reduce demand for virgin resources and keep useful materials in circulation. Recycled metals, glass, paper and some plastics are used in everything from packaging to construction. Reclaimed timber, bricks and fixtures can also be given a new life, often preserving the character of older buildings while avoiding the need for new production.
Recycling is not automatically the best option, however. Materials may lose quality during recycling, and collection and processing also use energy. Reuse and repair can sometimes offer greater benefits.
Responsibly sourced timber and natural fibres
Timber can be a renewable building material when forests are managed responsibly and harvested at a rate that allows them to regenerate. Certification schemes can help buyers check the origin of wood, although it is worth looking beyond a label and considering the product’s full supply chain.
Natural fibres such as hemp, flax and wool can also be useful alternatives in textiles and construction. Their overall impact depends on how they are grown, processed, dyed and transported.
Lower-impact construction materials
Construction has a significant demand for materials, including concrete, steel and insulation. Options such as reclaimed materials, recycled-content products and lower-carbon alternatives can help reduce a project’s environmental footprint. The best choice depends on the building’s purpose, location, safety requirements and expected lifespan.
Design matters just as much as material choice. Creating buildings that last, are easy to maintain and can be adapted for new uses may prevent more waste than simply switching one product for another.
Look beyond the label
Words such as “green”, “natural” and “eco-friendly” can be vague. A material made from renewable resources may still involve high water use, harmful chemicals or long-distance transport. Likewise, a recycled product may be difficult to recycle again if it combines several materials that cannot be separated.
When comparing products, look for clear information about sourcing, composition, durability and end-of-life options. Independent certification can be helpful, but it should sit alongside practical questions: Will the product last? Can it be repaired? Is there a local reuse or recycling route?
Small choices, wider change
Individuals, organisations and businesses can all help build demand for more sustainable materials. Buying fewer, better-made products, choosing second-hand goods, repairing what is already owned and avoiding unnecessary packaging are practical places to start. When purchasing new materials, asking suppliers about their sourcing and environmental impact can encourage greater transparency.
For larger projects, early planning is essential. Designers and buyers can compare materials at the start, consider reclaimed options and make sure products can be maintained and separated for reuse or recycling later. These decisions can also support local skills, businesses and supply chains.
Building a more sustainable future
Sustainable materials are not a simple checklist or a perfect solution in isolation. Their benefits depend on how they are sourced, used and managed throughout their life. The most responsible choice is often to use less, make products last longer and keep valuable resources in circulation.
By asking thoughtful questions and choosing materials with care, communities and organisations can help reduce waste, protect natural resources and create a healthier environment for future generations.
Five Essential Tips for Choosing Sustainable Materials
- Choose recycled or reclaimed materials where possible.
- Look for responsibly sourced timber with FSC certification.
- Prefer durable materials that last longer.
- Select locally sourced materials to reduce transport impacts.
- Avoid materials containing harmful chemicals.
Choose recycled or reclaimed materials where possible.
Choose recycled or reclaimed materials wherever possible to reduce demand for newly extracted resources and keep valuable materials in use for longer. Reclaimed timber, bricks and furniture can add character to a space, while recycled glass, metal and paper offer practical alternatives for many everyday products. Before buying, check that the material is suitable for its intended use, durable and sourced responsibly; choosing products that can be repaired, reused or recycled again can extend their benefits even further.
Look for responsibly sourced timber with FSC certification.
When choosing timber, look for products carrying Forest Stewardship Council (FSC) certification. This indicates that the wood comes from forests managed to protect biodiversity, support local communities and respect workers’ rights. Check that the FSC label applies to the product you are buying, and consider reclaimed timber where suitable to make use of existing materials.
Prefer durable materials that last longer.
Choosing durable materials helps reduce waste and the need to replace products frequently. When buying furniture, clothing or building materials, look for well-made options designed to withstand regular use and, where possible, choose items that can be repaired or maintained. Although they may cost more at first, long-lasting materials can offer better value over time while reducing demand for new resources.
Select locally sourced materials to reduce transport impacts.
Choosing locally sourced materials can help reduce the distance products travel, cutting transport-related emissions and supporting businesses in your area. Where possible, ask suppliers where materials come from and consider locally available alternatives. Remember that transport is only one part of a material’s overall impact, so it is also worth checking how it is produced, how long it will last and whether it can be reused or recycled.
Avoid materials containing harmful chemicals.
Choose materials that are free from harmful chemicals wherever possible, particularly in products used indoors or close to the skin. Some paints, finishes, fabrics and building products can release substances that affect indoor air quality or pose risks to people and wildlife. Check product labels and safety information, look for trusted independent certifications, and ask suppliers about ingredients and emissions. Choosing safer alternatives can help create healthier homes and workplaces while reducing pollution.