Project requirements
Ratings, smoke control, sizes, handing, configurations, wall types and other performance requirements are identified from the schedule and specification.
Evidence-led manufacture
Every detail must work as part of the complete fire door.
Fire performance depends on the compatible combination of leaf, frame, seals, glazing, ironmongery, preparation and installation. Our project review and manufacturing controls are built around that principle.
Our approach
Compliance begins before production.
We do not treat a fire rating as a label that can be applied to any arrangement. Each proposed configuration is reviewed against the relevant supporting evidence and agreed project information before manufacture.
Compatible components
Frames, seals, glass, beads, hinges, locks, closers and specialist hardware must remain compatible with the selected construction.
Manufacturing data
Approved dimensions and preparation details are transferred into controlled production information and repeatable CNC programmes.
Production checks
Material, machining, assembly and finish details are checked through the manufacturing sequence and before dispatch.
Door references
Project and door references can be coordinated to support identification across schedules and phased deliveries.
Project information
The agreed documentation scope is coordinated with the quotation and order so project teams know what will be supplied.
Supporting evidence
Configuration-specific—not a blanket claim.
The available rating or option depends on the particular door construction and its supporting test, assessment or field-of-application evidence. Maximum sizes, glazing, pairs, hardware and frame requirements can differ between systems.
Where a project names a certification scheme, certificate, core system or particular standard, include it with the enquiry so it can be reviewed against the proposed manufacturing route.
Fire-resistance requirementsFD30, FD60, FD90, FD120 or an EN classification as stated in the project documents.
Smoke-control requirementsConfirmed separately where cold-smoke control is required.
Glazing and aperturesGlass, bead, aperture size and position must remain within the approved arrangement.
Hardware and access controlItems and preparation must be suitable for the door type and compatible with its evidence.
Frames and supporting constructionMaterial, density, section size and installation interface are part of the complete specification.
Fire doors explained
A life-safety product designed to contain fire and smoke.
A fire door forms part of a building's passive fire-protection strategy. When correctly specified, manufactured, installed and maintained, it helps resist the passage of fire and smoke between compartments, protecting escape routes and providing additional time for evacuation and firefighting.
Performance is expressed as a period of fire resistance—commonly 30, 60, 90 or 120 minutes—but the rating applies to the tested or assessed doorset configuration, not simply to the door leaf in isolation.
Helps restrict fire and smoke to the compartment of origin.
Supports protected escape routes and safer evacuation.
Helps project teams and responsible persons meet applicable fire-safety requirements.
Can reduce the spread of damage through a building.
Standards and regulations
The specification must reflect the building, location and intended use.
Requirements vary by project and jurisdiction. Hassock Wood reviews the information supplied for each doorset and manufactures within the applicable supporting evidence. The project designer, fire engineer, contractor, installer and responsible person retain their respective duties.
Provides statutory guidance in England on meeting the fire-safety requirements of the Building Regulations. Fire doorsets are considered as complete assemblies, including the leaf, frame and ironmongery.
Places duties on the responsible person for fire safety in workplaces and relevant common parts of residential buildings in England and Wales.
Introduces additional fire-door information and checking duties for responsible persons in certain multi-occupied residential buildings in England.
Configurations may be supported by test, assessment or field-of-application evidence to standards such as BS 476-22 or BS EN 1634-1, as required by the project.
Installation, inspection and maintenance must follow the applicable evidence, instructions, project requirements and recognised good practice.
Seals, glazing, frame, hinges, closer, lock, access-control preparation and other hardware must remain compatible with the approved arrangement.
Important: References to legislation and standards are general guidance only. The current project specification, fire strategy, product evidence and competent professional advice must always take precedence.
Door location
Internal and external fire doors can perform different roles.
The correct construction depends on the fire strategy, exposure, security, accessibility and environmental requirements.
Compartmentation within the building
- Used between rooms, corridors, staircases and fire compartments
- May protect escape routes and subdivide higher-risk areas
- Can include approved fire-resisting glazing
- Often requires controlled self-closing and smoke-seal arrangements
Openings at the building perimeter
- May be required to resist fire exposure from either side
- Can combine fire, weather, security and emergency-exit performance
- May require compatible panic or escape hardware
- Must be specified for the actual wall, threshold and exposure conditions
Frequently asked questions
Common fire-door compliance questions.
Final answers depend on the exact construction and supporting evidence. Send your schedule and specification for project-specific review.
Does an FD rating apply to the door leaf alone?
No. Fire performance relates to the complete tested or assessed arrangement, including the leaf, frame, seals, glazing and compatible ironmongery.
Can any closer, lock or hinge be used?
No. Hardware type, material, size, position and preparation can affect performance and must be compatible with the applicable evidence.
Can glazed apertures be added to a fire door?
They may be possible where the glass, glazing system, bead, aperture dimensions and location fall within the supporting evidence.
Are FD30, FD60, FD90 and FD120 available in every size?
No. Permitted dimensions and configurations vary between systems. Oversize leaves, pairs, overpanels and side panels require specific review.
What information should be supplied with an enquiry?
Provide the door schedule, fire strategy or specification, drawings, frame and wall details, glazing requirements, ironmongery schedule and finish references wherever available.
Who is responsible for installation and ongoing checks?
Responsibilities depend on the contract and building. Installation should be completed by competent persons in accordance with the applicable evidence, while the building's responsible person has ongoing fire-safety duties.
Information we need
Help us review the right construction.
Where available, send the following with your door schedule or project enquiry.
Door schedule
References, ratings, sizes, handing, quantities and locations.
Fire strategy or specification
Required standards, smoke control and project-specific performance.
Drawings and elevations
Configurations, glazing, interfaces and design intent.
Ironmongery schedule
Hinges, locks, closers, access control and specialist items.
Frame and wall information
Frame material, section and intended supporting construction.
Finish references
Paint codes, veneer species, laminates and edge requirements.
Technical coordination
Send the project information for review.
We will identify what can be manufactured within the selected evidence and what needs clarification before quotation or production.