Whether you require wooden doors for residential projects or for specialized applications such as commercial buildings or hospitality spaces, Kyoung ensures consistent quality and reliable delivery through its internationally recognized quality and environmental management systems.
Choosing Kyoung means partnering with a compliant, sustainable, low-risk, and high-quality wooden door manufacturer committed to craftsmanship and long-term performance.
Below are some of our certifications available for your reference, providing detailed information on our standards and compliance.

This Verification of Conformity confirms that our wooden doors have been assessed against EU Construction Products Regulation (EU) No 305/2011 and EN 14351-2:2018, demonstrating the applicable European standards and requirements.

This Attestation of Conformity confirms that our wooden doors comply with EU Construction Products Regulation (EU) No 305/2011 and EN 14351-2:2018 standards, ensuring quality and regulatory compliance.

This FSC Chain of Custody Certification verifies that our wooden doors are manufactured using responsibly sourced materials, ensuring traceability, sustainability, and compliance with internationally recognized forest management standards.

This Environmental Management System Certificate confirms compliance with GB/T 24001-2016 and ISO 14001:2015, demonstrating effective environmental management and a strong commitment to sustainable and responsible manufacturing practices.

This Occupational Health and Safety Management System Certificate showcases our products have passed ISO 45001:2018, which serves as a robust framework for workplace safety, risk control, and the protection of employee health and well-being.

This Quality Management System Certificate attests our adherence to ISO 9001:2015, demonstrating consistent quality control, standardized production processes, and a strong commitment to delivering reliable, high-quality wooden door products.
Fire Door Certifications
Our fire-rated wooden doors have passed positive pressure fire tests with ratings of 20, 45, 60, and 90 minutes. These confirm our doors’ structural integrity and fire resistance. Our products meet the following U.S fire standards:
- NFPA 252 (2012)
- UBC 7-2
- UL 10B and UL 10C
Rest assured that our fire-rated interior doors are suitable for residential, commercial, and public applications.


Acoustic Door Certification
Our interior doors also passed independent acoustic performance testing conducted by Intertek. The tested sound insulation performance ranges from STC 32 to STC 42, depending on door configuration.
Testing was carried out in accordance with:
- ASTM E90-09 (R2016)
This certification confirms that our interior doors can effectively provide sound insulation.
ISO9001 Quality Management System
KYOUNG operates a comprehensive quality management system registered to ISO9001:2015. The system is implemented in all our departments and supervised by a dedicated Quality Assurance Manager and QA team. Our ISO9001 certification assures you a:
- Consistent quality
- Controlled production
- Innovative manufacturing operations

Our Ongoing Commitment


Certifications are part of our long-term approach to manufacturing excellence. We continuously improve our production processes, testing methods, and quality control. Working with us means you partner with an interior door manufacturer that values verified performance, certified systems, and dependable quality.



