Internal Fire Doors - FD30 & FD60

The thickness of our fire doors depends on the fire rating:

• 30-minute fire doors (FD30) are 44mm
• 60-minute fire doors (FD60) are 54mm

Fire doors are thicker than standard doors due to their fire-resistant construction. FD30 doors (30-minute fire rating) are typically 44mm thick, whilst FD60 doors (60-minute fire rating) are 54mm thick. The rating indicates how long the door will resist fire under test conditions.

FD30 doors provide at least 30 minutes of protection, making them suitable for most residential and commercial applications. In contrast, FD60 doors offer 60 minutes of protection and are often required in buildings with longer evacuation times in high-risk areas or on higher floors.

Safelincs delivers internal fire doors throughout the UK. As an online supplier, we remove the need to visit physical showrooms. Our website showcases our full range with detailed images and specifications. Each door is made to order and delivered directly to you, with nationwide delivery available.

Yes, fire doors can be painted with regular paint, but avoid applying excessively thick coats that may compromise the door's performance. Fire door hardware, including hinges, handles, and seals, shouldn't be painted, as this can compromise their function. 

Fire doors can also be glazed with fire-rated glass. Glazed fire doors can be safer, as they allow visibility of potential dangers without requiring the door to be opened. All glazing must be fire-rated and properly installed according to the manufacturer's specifications to maintain the door's fire rating.

For specialised environments such as care facilities, learn more about the importance of fire doors in care homes where additional considerations apply.

Whether you need FD30 double fire doors or FD60 double fire doors for wider openings, we have options to suit your requirements.

You can purchase internal fire doors directly from Safelincs online. We offer both standard and bespoke options through our easy-to-use configurator. Our fire doors are made to order by BWF certified UK manufacturers and delivered to your location. Each door comes with certification and markings verifying its fire integrity.

Safelincs offers white internal fire doors in both FD30 and FD60 ratings. Options include:

• Primed doors ready for painting
• Factory-painted white doors
• White Formica laminate finished doors
• Various glazing options in white framed doors
• White door frames to match

White doors work well in modern interiors and can help brighten corridors and spaces with limited natural light.

Safelincs is proud to offer its customers industry-leading products and expertise. Our team are renowned for their excellent and thorough service, and are backed by our office-based customer service team who are always available to offer advice and support from our Lincolnshire-based HQ.

• Services are available anywhere in mainland UK
• Flexible and tailored solution for your premises and requirements
• Fully certificated team for peace of mind
• High-quality workmanship
• Safelincs is rated 5* on Trustpilot and has over 6000 reviews from our customers
• Award-winning customer service

Our custom configurator allows you to design your perfect fire door in under five minutes.

No, special paint is not required on fire doors. Regular decorative paint or varnish can be used without affecting the performance of the fire door. Care should be taken not to paint over the seals or hardware such as hinges.

To find out which fire door you need, the Responsible Person in any business or organisation should carry out a risk assessment. This will determine where fire doors are required and what fire rating they should have.

In domestic properties, check the Building Regulations for guidance on where to fit fire doors in new-builds or renovations.

Our fire doors are not certified for use within pocket or sliding door systems and the glazing and panels we provide is fitted using raised beading.

FD30 fire doors are made of softwood and FD60 fire doors are made of hardwood.

All our fire doors satisfy the DDA regulations.

In order to calculate the weight of a fire door you will need to know the weight per square meter (kg/m2) of the doors core. This is determined using the thickness of the door as follows:

• 44mm = 55kg/m2
• 54mm = 75kg/m2

The calculation below can be used to determine the approximate weight of the fire door. Please note that the calculation does not take glass weight into account.

Width x Height x Thickness x kg/m2 of the door's core = Weight of fire door

For example for a door that was 926 x 2040mm with a thickness of 44mm the following calculation would give an approximate weight:

0.926 x 2.040 x 0.44 x 55 = 45 kg

Please find below an example of how to calculate the weight of a door.

Please Note: the calculator does not take glass weight into account and the result is the approximate weight:

Width of door e.g 926mm

Height of door e.g 2040mm

Thickness of door e.g 44mm

x square m2 weight of door core

• 44mm – 55kg
• 54mm – 75kg

Width x height x thickness x square m2 weight of door core = Weight of door

e.g 926 x 2040 x 44 x 55kg

Type in calculator 0.926 x 2.040 x 0.44 x 55 = 45kg

Our fire door leafs do not come with the rebates for intumescent strips as standard, however this can be included as a bespoke product. Where a door and frame is ordered at the same time then the rebate will be put into the frame as standard. For door leafs without rebates surface mounted seals are available.

We offer various types to meet your specific requirements:

Single Fire Doors

Our single fire doors are available in both FD30 and FD60 ratings with multiple size options. Choose from real wood veneers, including oak, sapele, ash, beech, maple, walnut and cherry, or select Formica laminate finishes for high-traffic areas.

Double Fire Doors

Double fire doors are perfect for wider openings and come as matched pairs with square or rebated meeting stiles. These are certified and tested as pairs to ensure compliance. Available in both FD30 and FD60 ratings and also available in FD90 and FD120 on request.

Fire Door Sets

For complete assurance, our fire door sets include perfectly matched doors and frames, ensuring full compliance when installed to the manufacturer's specification. These sets simplify specification and installation while maintaining fire safety standards.

Glazed Fire Doors

Our glazed fire doors allow light transmission while maintaining fire protection. Various glazing patterns are available with both clear and frosted fire rated glass options. All glazing is properly certified to maintain the door's overall fire rating.

FD30 doors must resist fire for a minimum of 30 minutes. Requirements include:

• Correct thickness (usually 44mm minimum)
• Appropriate core materials
• Certified hinges (minimum three)
• Compatible intumescent strips
• Self-closing mechanism
• Fire-rated glazing panels (if present)
• Proper gap tolerances (2-4mm around edges)
• Correct installation in a compatible frame
• Certification marking

All Safelincs FD30 doors are BWF Certifire approved and meet these specifications.

FD60 doors must resist fire for a minimum of 60 minutes. Requirements include:

• Greater thickness than FD30 (typically 54mm minimum)
• More robust core materials
• Higher specification intumescent strips
• Fire-rated ironmongery throughout
• Stricter gap tolerances
• More substantial framing requirements
• Special grade fire-rated glazing (if present)
• Certified installation
• Clear certification marking

Our FD60 doors meet all these requirements and come with proper certification.

Internal fire doors with glass incorporate vision panels with fire rated glazing. The glass undergoes special treatment to withstand high temperatures without shattering. At Safelincs, we offer fire doors with Pyrobelite fire rated clear glass or frosted glass options. All glazing is surrounded by timber that matches your door veneer. These doors combine safety with light transmission and visibility.

You can customise your internal fire doors with:

• Various finish options, including real wood veneers
• Multiple glazing configurations and glass types
• Compatible ironmongery, including handles and locks
• Intumescent and acoustic seals
• Protective kick plates and signage
• Fire door closers and holders
• Door viewers

Our online configurator makes it simple to design doors to your specifications in just minutes.

Internal fire doors in the UK must be tested for performance in accordance with British Standards set out in building regulations. Key features include:

• Third-party certification of fire doors (such as BWF certification) – ensures traceability of performance, components and the supply chain
• UK fire doors should be tested in accordance with BS 476 Part 22 as set out in Approved Document B
• UK-specific sizing options
• Appropriate markings and certification
• Compatibility with UK building methods

Safelincs works with UK manufacturers who understand these requirements and produce fully compliant doors for the British market.

Yes, you can purchase internal fire doors with compatible fire rated frames from Safelincs. These frames are essential for proper installation and fire performance. Our frames:

• Match the fire rating of your chosen door
• Can be ordered separately or as a complete doorset
• Are available in various wood finishes to match your door
• Come with options for architrave
• Include pre-cut rebates for intumescent strips

Fire door frames must be properly specified to maintain the fire rating of the entire assembly.

Internal doors need to be fire rated when they lead to or from:

• Stairwells in multi-storey buildings
• Rooms containing fire hazards (boiler rooms, kitchens)
• Escape routes or corridors
• Between residential and commercial areas in mixed-use buildings
• Areas required by building regulations or your fire risk assessment

Building regulations often specify where fire doors must be installed and their required rating. Residential buildings of multiple floors typically require fire doors between habitable rooms and the stairwell.