FAQs about our Fire Doors & Joinery

Letterbox, door viewer, air transfer grills must be tested or otherwise approved for use with Forza fire-rated doors, they must be fitted fully in accordance with manufacturer instructions including all intumescent liners and cloaking grilles/beads.

Restrictions on the maximum size and placement of any aperture, in which must also be included in the total area permitted for apertures.

Note: the installation of such items in a door leaf may compromise its performance as a smoke control door assembly.

At this moment Forza is only permitted to certify fire-rated door assemblies under BS 476: 22.

We are actively developing a scope of fire-rated products tested under EN 1634-1.

This may vary depending on the chosen ironmongery for the door assembly, however, the frame shall be always a minimum of 70mm depth by 32mm thick.

The supporting construction may be timber stud & frame or steel stud, head & base track, plasterboard partition (with plasterboard on both faces of the stud), masonry wall or Forza timber framed glazed partition, but shall be of a type that has been tested or assessed to provide in excess of 30 minutes fire resistance, at the required size, when incorporating FD30 timber door assembly openings.

If fitted into a proprietary demountable and relocatable partition system providing in excess of 30 minutes of fire resistance, the method of forming the timber door assembly aperture must be as tested by the partition manufacturer.

The limitation of allowable elevations/leaf sizes and ironmongery as tested and specified by the partition manufacturer shall take total precedence over Forza data.

This may vary depending on the chosen ironmongery for the door assembly, however, the frame shall be always a minimum of 70mm depth by 32mm thick.

The supporting construction may be timber stud & frame or steel stud, head & base track, plasterboard partition (with plasterboard on both faces of the stud), masonry wall or Forza timber framed glazed partition, but shall be of a type that has been tested or assessed to provide in excess of 60 minutes fire resistance, at the required size, when incorporating FD60 timber door assembly openings.

If fitted into a proprietary demountable and relocatable partition system providing in excess of 60 minutes of fire resistance the method of forming the timber door assembly aperture must be as tested by the partition manufacturer.

Limitation of allowable elevations/leaf sizes and ironmongery as tested and specified by the partition manufacturer shall take total precedence over Forza data.

Forza Doors Ltd has been assessed and certified as meeting the requirements of the standard(s): 

• FSC-STD-40004_V3-1 EN Chain of Custody Certification
• FSC-STD-50-001 V2-1 Certificate Holder Trademark Requirements for FSC® Chain of Custody Certification

With scope preparation of wood veneers and timber utilised in the production of doors, frames, panels and associated joinery.

As we operate under a third-party certification scheme, for door assemblies (not door sets), there is not one stand-alone test report which is attributable. Our Field of Application reports reference multiple fire test reports and from the evidence within these, IFC Ltd provides a scope of what we are permitted to manufacture under the scheme. 

This is demonstrated via our Fire Door Certificate and Hardware Installation Guide which provides all information required to properly install our fire door assemblies. We do not provide copies of our FoAs for public review.

If you require further inspection beyond our fire door certificate provision, hardware guides and scheme membership certification (FRTD497), then you will need to arrange an in-person inspection at the IFC Ltd offices - where an appropriate Fire Engineer can be available to navigate the reports and demonstrate compliance as required.

Yes, this is possible when adhering to the minimum 27mm wide bead size.

Maximum screen height is 4500mm from FFL, but when over 3000mm high, at least one transom member shall be specified.

Maximum permitted run of 6000mm or 6000m partially divided by a minimum 200mm structural wall nib.

This is permitted as far as the fire glasses fall within the permitted option under Forza scope of fire rated approved glasses.

No, architraves can be freely specified as they are not part of the fire performance of the assembly performance.

Hardwood architraves minimum 640kg/m3 are required to a minimum 45 x 15mm size

Yes, this is one of the functions of a twin glazed system, the thicker the glass and inner cavity bead, the better the acoustic rating achieved.

Yes, this is permitted when the correct components are chosen. Please speak to us for more information.

Yes, our partitions have a grade performance of 1.5Kn, therefore .75kn & 1.5kn line loads wouldn't be a problem.

As this is non-fire-rated there is no limitation on the glazing screen system.

• Maximum height: 2490 mm
• Maximum width: 874 mm

Yes, all FD60 vision panel configurations, using either hockey stick beads or flush quirk beads, are permitted up to a maximum glazed area of 1.06m² per door leaf.

The maximum permitted dimensions are:

• 1700mm maximum vertical length
• 626mm maximum horizontal length

The pivot design is only available as a double door configuration.

Yes, approximate acoustic values tested to BS EN ISO 10140-2:2010 are:

• Double doors (glazed): 34dB/Rw
• Double doors (unglazed): 33dB/Rw

Observation: Forza does not currently hold any acoustic test evidence for this type of door assembly when fully fitted. The acoustic values provided are supplied by the door core manufacturer and relate solely to the door core leaf itself, rather than the complete door assembly when fitted.

No, this type of door assembly shall be considered unlatched at all times, even when an ES8100 V-lock is fitted at the head interface.

Flush frame profile

• Head section: minimum 60mm thick x 90mm wide
• Jambs sections: minimum 50mm thick x 90mm wide

Shadow gap frame profile

• Head section: minimum 60mm thick x 104mm wide
• Jambs sections: minimum 50mm thick x 104mm wide

For this product, any surface-mounted ironmongery can be used.

Yes. The floor must feature a non-combustible threshold to maintain fire performance.

The maximum length is 1500 mm between centres, with up to four fixing points per handle.

The FD60S Double Action Pivot Door can be tailored to suit almost any design scheme. It’s available in:

• 30+ real wood veneers
• 50+ laminate finishes
• A wide range of painted styles

Yes, FSC® sustainably sourced timbers are available on request.

We aim to match as close as possible, though colour can vary slightly

Ash or Oak to match veneer, in the case of Eucalyptus veneers, use Maple

All Creato veneers are book-matched.

Various European languages. ‘Animus’ for example means soul; mind in Latin.

Between 10% (matt) ≥ 30% (standard).

Yes, Creato veneers are compatible.

Yes, FSC® sustainably sourced timbers are available on request.

Unfortunately not, but you can work with us to use our bespoke services with sample approval.

Yes, we stain match to accordingly.