

The Forest Stewardship Council® (FSC®) is an independent, not-for-profit, non-government organisation that provides standard setting, trademark assurance and certification services for companies and organisations interested in responsible forestry. FSC® provides Chain of Custody standards for manufacturers, processors of forest products. FSC® Certified forests are managed to strict environmental, social, and economic standards.
FSC® Chain of custody certification verifies that FSC®-certified material has been identified and separated from non-certified and uncontrolled material as it makes it way along the supply chain, from forest to the market.
The FSC® logo and label is used by Big K to denote that the product is sourced from FSC® certified suppliers, and can be tracked through the production process.
Big K has been a certified member since 1999.
FSC® is dedicated to the promotion of responsible forest management worldwide.


The Programme for the Endorsement of Forest Certification (PEFC) is a global alliance of national forest certification systems that promotes responsible forest management through independent third-party certification.
PEFC was established in 1999 in response to the specific requirements of small- and family forest owners as an international umbrella organisation providing independent assessment, endorsement and recognition of national forest certification systems. It has since then grown to become the world’s largest forest certification system.
Big K Products has been a certified member since 2014.
The PEFC logo on our products ensures that our wood comes from sustainably managed forests, recycled and controlled sources. Every purchase of a PEFC-labelled product makes a difference for forests and forest communities across the world. By sourcing PEFC, Big K Products are supporting sustainably managed forests globally. Big K Products has a PEFC certified chain of custody.


The government's department for environment, food and rural affairs (DEFRA) appointed HETAS and Woodsure to run the Ready to Burn fuel Certification scheme.
The scheme makes it easy for customers to find the cleanest fuels for burning at home. Using fuels that are approved and labelled as ready to burn also means it’s easy to comply with Air Quality (Domestic sold fuels standards) regulations 2020 that outlaws the sale of wet wood and house coal which are the most polluting fuels.
HETAS – HETAS is the only specialist organisation approving biomass and solid fuel heating appliances, fuels and services. To be authorised for the use in a UK smoke control areas our fuels must have an average smoke emission of less than 5 grams per hour when tested to the standard (BS3841) and contain less than 2% sulphur (by dry weight with 95% confidence limit).
Woodsure - Woodsure is a not-for-profit organisation, striving to raise the quality of wood fuel in the industry. The Woodsure certification scheme and its logo shows wood fuel users the suppliers and products that they can trust. The Woodsure Ready To Burn Scheme is the UK’s only quality certification scheme that differentiates us as a responsible, trustworthy fuel supplier. It is available to wood log suppliers who can demonstrate to Woodsure their ready to burn logs have a moisture content consistently below 20% and they have been tested by Woodsure to ensure this is true. Woodsure certified suppliers are your guarantee of reliable, high-quality wood fuels.
Grown in Britain is an independent not-for-profit organisation, working to ensure the future success of the UK's woods and forests. It is the only certification scheme that provides assurance of homegrown timber and timber products from the UK. A key element of Grown in Britain’s ambition is to increase the number of existing forests and woodlands which are actively managed to a recognised forest management standard to create a healthier future for our forests and woodlands.
Grown in Britain certification provides assurance that the products originate from timber grown in the United Kingdom. When the Grown in Britain certification is applied to a product it provides assurance of origin through and instantly recognisable label.
ISO 9001 is a globally recognised standard for quality management. It helps organisations of all sizes and sectors to improve their performance, meet customers’ expectations and demonstrate their commitment to quality. ISO promotes a process approach designed to enhance customer satisfaction right into the heart of the organisation, complementing business strategy and helping an organisation to enhance its performance over time and achieve its aims.
By implementing the standards recommendations, an organisation can ensure that it provides quality products and services.


The approved coal merchants’ scheme (ACMS) is the body recognised by trading stands as the regulator for the coal trade. Members are fully trained and are committed to serving the customer.


Big K Products is proud to mark over two years of Real Living Wage accreditation, underscoring our commitment to fair compensation and the well-being of our team. This achievement reflects our dedication to a wage that not only meets but exceeds the government minimum, ensuring that all employees are compensated in alignment with the actual cost of living.
Since earning this accreditation, Big K Products has consistently upheld the standards set by the Living Wage Foundation, providing wages that allow our team members to live comfortably and securely. As a company that values its workforce, we believe fair pay is fundamental to creating a positive and productive work environment.
The Real Living Wage is calculated based on living costs, rather than the government’s national minimum wage. In practical terms, this means a fair wage that is designed to cover essentials like housing, food, and transportation, allowing our employees to maintain a good quality of life.
Our accreditation reinforces Big K Products’ reputation as an ethical and responsible employer. As we move forward, we will continue to uphold these values and support initiatives that recognise the invaluable contributions of our workforce.