🔥 Now fully aligned with BS 8214:2026 — in force 31 March 2026 Download our compliance statement →
FireWedge exists because of one gap in fire door compliance documentation. Here is exactly how we close it — and why it matters more than ever.
Fire door installation in the UK has undergone the most significant regulatory transformation in a decade. The Building Safety Act 2022, the Fire Safety Act 2021, the Fire Safety (England) Regulations 2022 and the publication of BS 8214:2026 have collectively created a compliance environment where documentation is no longer optional — it is the job.
The Building Safety Act 2022 introduced the concept of a golden thread of building safety information that must be maintained throughout a building's lifecycle. Every component used in a fire door installation must be evidenced. Every material must be traceable. Every decision must be documented.
Golden thread of building safety information. Every component must be evidenced and traceable throughout the building lifecycle.
Expanded scope of fire safety duties to flat entrance doors in multi-occupancy residential buildings.
Mandatory fire door inspection requirements for buildings over 11 metres.
Current UK code of practice. In force 31 March 2026. Replaces the withdrawn 2016 edition.
Hardwood packing wedges are used in virtually every fire door installation to pack the frame accurately within the structural opening. Most doorset manufacturers specify that packing wedges must be of a minimum timber density — typically 420 kg/m³ for FD30 and 650 kg/m³ for FD60 — in order for the installation to comply with their test evidence.
For years, contractors have sourced these wedges from timber merchants, joinery suppliers, or wherever they could find them. No Certificate of Conformity. No density verification. No batch reference. No documentation of any kind.
Under the previous regulatory environment that was tolerated. Under the current one it is not.
One component. No documentation. Under the Building Safety Act 2022 this is no longer an acceptable position.
BS 8214:2026 came into force on 31 March 2026, replacing BS 8214:2016. This is the most significant update to the UK's primary fire door code of practice in a decade. The three changes that matter most for packing wedge documentation are:
BS 8214:2026 moves away from prescriptive construction rules. Instead it requires that appropriate supporting evidence exists for any fire door construction — placing greater responsibility on building managers to ensure adequate documentation.
That supporting evidence must cover every component in the assembly. Including the packing wedge.
A new section covers the roles and responsibilities of everyone in the fire door supply chain — the specifier, door provider, manufacturer, installer and the Relevant Duty Holder. This reflects the emphasis of the Building Safety Act 2022 on clear accountability.
Supply chain providers are now explicitly named in the standard. FireWedge is a supply chain provider. Our CoC is our accountability document.
Installation requirements have been clarified — particularly in Section 9.4 — to reduce the risk of misunderstanding and non-compliant installation on site.
Section 9.4 governs the installation of the door frame into the structural opening — precisely where packing wedges are used. How the frame is packed is now under greater scrutiny than ever before.
FireWedge is the UK's only manufacturer of hardwood packing wedges produced specifically for fire door installation with independent UKAS density verification and a batch-specific Certificate of Conformity in every pack. Here is exactly what we provide.
Every batch of timber we cut is density tested to BS EN 323 — the recognised British Standard for the determination of timber density — by a UKAS-accredited testing laboratory.
UKAS accreditation means the laboratory operates to ISO/IEC 17025 — the international standard for testing competence. Results are independently verified, traceable, and legally defensible.
Any batch that does not meet these thresholds is not released for sale. No exceptions.
Every FireWedge pack ships with a batch-specific Certificate of Conformity. This document is produced specifically for your installation file. It is not a generic datasheet — it is tied to the exact batch of timber your wedges were cut from.
Every FireWedge bag carries a QR code that links directly to the online batch verification page for that specific batch. Scan on site, verify the batch certificate, download a PDF copy in seconds.
Your site operative, your compliance manager and your auditor can all independently verify the documentation for the wedges used on any specific installation — at any point in the building's lifecycle.
This is the golden thread in action.
Every fire door installation file should contain the following for the packing wedges used:
FireWedge provides every one of these in a single document included in every pack.
Common questions from contractors, specifiers and responsible persons about FireWedge documentation.
Every pack ships with a batch-specific Certificate of Conformity — fully evidenced, audit-ready documentation from day one.
FireWedge is a trading name of DJR Joinery Ltd. Trademark Registered. All CoC documentation is issued on the basis of UKAS-accredited laboratory test results. Suitability for specific fire door assemblies is always subject to the doorset manufacturer's installation guidance and test evidence.