A Complete Guide to Fire Door Linings: FD30 & FD60 Timber Door Frame Kits

Fire door linings play a crucial role in the performance, safety and compliance of any fire‑rated door installation. Whether you’re working on a residential project, commercial building, school, hospital or HMO, choosing the right FD30 or FD60 fire door lining is essential for meeting UK fire safety regulations.

At Timber Mouldings Direct, we supply a full range of certified fire door linings and door frame kits, manufactured to high standards and suitable for both new builds and refurbishment projects. Our linings are designed for easy installation, reliable performance and a clean, professional finish.

What Is a Fire Door Lining?

A fire door lining (also known as a fire door frame or fire door kit) is the timber framework that houses a fire‑rated door leaf. It is a critical component of the fire door system and must be manufactured to the correct specification to ensure the door performs as intended in the event of a fire.

A compliant fire door lining:

• Maintains the integrity of the fire door

• Supports intumescent seals

• Ensures correct clearances and tolerances

• Helps prevent the spread of fire and smoke

• Works as part of a fully tested fire door assembly

Without the correct lining, even a certified fire door leaf cannot achieve its rated performance.

FD30 vs FD60 Fire Door Linings

FD30 Fire Door Linings

Rated to provide 30 minutes of fire resistance, FD30 linings are the most common choice for:

• Domestic properties

• HMOs

• Apartment entrance doors

• Internal fire protection routes

FD60 Fire Door Linings

Rated to provide 60 minutes of fire resistance, FD60 linings are typically used in:

• Commercial buildings

• Plant rooms

• High‑risk areas

• Larger residential developments

Both options are available in a range of sizes and timber species to suit your project.

Why Choose Timber Fire Door Linings?

Timber remains the preferred material for fire door linings due to its:

• Strength and stability

• Ease of installation

• Compatibility with intumescent seals

• Aesthetic appeal

• Versatility for painting or staining

Our fire door linings are manufactured from high‑quality timber and supplied unfinished, allowing you to match them to your interior design or existing joinery.

Fire Door Lining Kits Available at Timber Mouldings Direct

We supply a full range of FD30 and FD60 fire door lining kits, including:

• Standard linings

• Wider linings for thicker walls

• Double door linings

• Linings with or without intumescent seals

• Softwood and hardwood options

All kits are supplied with:

• Door stops

• Intumescent seal grooves (where required)

• High‑quality, smooth‑machined timber

• Easy‑to‑fit components

Explore the full range here: 👉 https://www.timbermouldingsdirect.co.uk/collections/door-frame-kits

Where Fire Door Linings Are Required

Fire door linings are commonly required in:

• Apartment entrance doors

• Stairwells and escape routes

• Internal garage doors

• Commercial corridors

• Schools and public buildings

• HMOs and multi‑occupancy properties

Building Regulations (Approved Document B) specify where fire doors must be installed, and the lining must match the fire rating of the door leaf.

Why Install a Complete Fire Door Lining Kit?

Using a complete kit ensures:

• Correct tolerances

• Consistent fire performance

• Faster installation

• Reduced risk of non‑compliance

• A professional finish

Our kits are designed to save time on site while ensuring full compliance with fire safety standards.

Trusted by Joiners, Builders & Developers Across the UK

Whether you’re fitting a single fire door or supplying a full development, our fire door linings offer:

• Reliable quality

• Competitive pricing

• Fast delivery

• Consistent machining

• UK‑wide supply

We work with joiners, contractors, housing associations and developers who rely on us for high‑quality timber products delivered on time.

Order Your Fire Door Lining Kit Today

Browse our full range of FD30 and FD60 fire door linings here:

👉 https://www.timbermouldingsdirect.co.uk/collections/door-frame-kits

If you need help choosing the right lining or require a bespoke size, our team is always happy to assist.