What is the fire rating of a timber door?

Introduction: Understanding Fire-Rated Doors

What Does Fire Rating Mean for Timber Door?

Fire ratings tell us how well a timber door can hold back flames and smoke in case of a fire. They are not just labels—they are proof that a door meets strict safety rules. Fire-rated timber doors help slow down the fire, giving people more time to escape and firefighters more time to control the flames.

If you see a fire-rated wooden door, it has been tested to withstand fire for a certain period. But not all timber doors are fire-rated. Regular wooden doors can burn quickly, while fire-rated ones are built to resist high heat and smoke for a set time. That’s why choosing the right fire-rated wooden door matters, whether it’s for a home, office, or public building.

The Basics of Fire Ratings in Doors

Fire ratings for timber doors tell us how long a door can resist fire before it starts to break down. The rating is usually measured in minutes. The most common ratings for wooden fire doors are:

1. FD30 (30 minutes):

This is the most common fire-rated timber door for homes and small offices. It holds back fire and smoke for at least 30 minutes.

2. FD60 (60 minutes):

These doors are often used in larger buildings, like hotels, schools, and hospitals. They offer an extra layer of protection.

3. FD90 & FD120 (90-120 minutes):

High-risk buildings, like factories and skyscrapers, may need fire-resistant timber doors that can last much longer.

The “FD” in these ratings stands for “Fire Door.” The number tells you how long the timber fire door can resist fire before failing. Choosing the right rating depends on where the door will be used and the local fire regulations.

How Fire Resistance Is Measured (Minutes vs. Standards)?

Fire resistance in timber doors is tested under extreme heat to see how long they can hold up. The two key things tested are:

Flame Resistance: How long can the door stop flames from spreading.
Smoke Resistance: How well the door blocks smoke is as dangerous as fire.

Fire-rated wood doors must be tested to meet local and international safety standards. Some of the most common standards include:

BS 476 (UK Standard): A well-known fire testing standard in the UK. It measures both flame and smoke resistance in timber fire doors.
EN 1634 (European Standard): Used across Europe, this test checks how well a fire-rated wooden door can resist heat and smoke.
UL 10C / NFPA 252 (US Standards): These are common in the USA, where fireproof wooden doors must pass intense fire exposure tests.
AS 1905/1530: Fire-resistant doorsets provide essential protection of openings in fire-resistant barriers. These doors are regulated under this Australian standard AS1905.

A fire-rated timber door should always have a certification label that confirms it has passed these tests. This label tells you the fire rating, the standard it meets, and the manufacturer’s details. If a wooden fire door doesn’t have a label, it may not be fully certified.

Fire resistance is more than just about the timber fire door itself. The frame, seals, hinges, and even how it is installed all affect how well it performs. A poorly installed fire-rated wooden door may fail early, even with a high rating. That’s why it’s important to use the right installation methods and maintain the door regularly.

Why Are Fire-Rated Timber Door Important?

A fire-rated timber door is more than just a door—it’s a critical safety feature. It slows down the spread of fire and smoke, giving people more time to escape and firefighters more time to control the flames. Fire-rated wood doors are designed to protect both lives and property. That’s why they are required in many buildings, from homes to hospitals.

Protecting Lives and Property

Fire spreads fast. A small flame can turn into a dangerous fire in just a few minutes. Smoke and heat can move quickly without proper barriers, making escaping hard. A timber fire door helps slow down this process.

Stops Flames and Smoke: A well-sealed fire-rated wooden door prevents smoke and fire from moving to other rooms.
Gives People More Time: In an emergency, even a few extra minutes can save lives.
Reduces Property Damage: Slowing the fire’s spread helps firefighters control it before it destroys more of the building.

Fire-rated wooden doors are specially built to handle high heat. Unlike regular wood doors, which can burn fast, these doors have a fire-resistant core. Some also have intumescent seals, which expand when exposed to heat, sealing gaps and blocking smoke.

No matter how strong a fireproof timber door is, it must be installed correctly. Even the best wooden fire door can fail if there are gaps or weak hinges. That’s why proper fitting, regular maintenance, and certified hardware are just as important as the door.

Common Places That Require Fire-Rated Doors

Many buildings must have fire-rated timber doors by law. The goal is protecting escape routes, slowing fire spread, and creating safe zones. Here are some key places where fire-resistant wood doors are a must:

1. Homes and Apartments:

Between the Garage and the Main House: This stops fire from spreading from a car or stored items.
In Apartment Buildings: Fire-rated wooden doors are often used in entryways and stairwells.

2. Offices and Commercial Buildings:

Hallways and Stairwells: Keeping fire from moving between floors is crucial.
Server Rooms and Storage Areas: Protecting important data and goods from fire damage.

3. Hotels and Public Buildings:

Hotel Room Doors: Most hotels use FD30 or FD60 wooden fire doors to keep guests safe.
Schools and Hospitals: These places need extra protection since many people may struggle to evacuate quickly.

4. Industrial and High-Risk Areas:

Factories and Warehouses: Stopping fire in areas with machinery and flammable materials.
Kitchens and Restaurants: Fire-rated timber doors help contain fires from cooking equipment.

If a fire-rated wooden door is required, it must meet safety standards and be installed properly. Labels and certifications show that a timber fire door has been tested and approved. Always check for a fire door certification mark before buying.

Fire Ratings for Timber Door Explained

What Are the Different Fire Ratings for Timber Door?

Fire ratings for timber doors are categorized by how long they can withstand fire and smoke. These ratings are usually labeled as FD30, FD60, FD90, and FD120. Each number represents the minutes the door can hold up under fire conditions.

FD30, FD60, FD90, and FD120 Explained

1. FD30 Timber Doors:

These doors are the most common and are designed to resist fire for 30 minutes. They’re often used in residential buildings, like apartments or homes, where a basic level of fire protection is needed. FD30 timber doors are a great choice for internal doors, such as those leading to a garage or between rooms.

2. FD60 Timber Doors:

Stepping up in protection, FD60 doors can resist fire for 60 minutes. These are typically used in commercial buildings or larger residential properties where more time is needed for evacuation. For example, you might find FD60 timber doors in office buildings, schools, or hospitals.

3. FD90 Timber Doors:

With a 90-minute fire resistance, these doors are built for higher-risk areas. They’re often used in industrial settings or buildings with complex layouts where fire could spread quickly. FD90 timber doors are also common in stairwells or corridors that serve as fire escape routes.

4. FD120 Timber Doors:

The highest standard, FD120 doors, can resist fire for 120 minutes. These are used in critical areas requiring maximum protection, such as high-rise buildings, hospitals, or data centers. FD120 timber doors are designed to give people the most time possible to evacuate safely.

In short, fire-rated timber doors are a key part of any building’s safety plan. Whether you need a basic FD30 door for your home or a heavy-duty FD120 door for a commercial space, understanding these ratings helps you choose the right level of protection. Remember, the higher the number, the more time you’ll have to stay safe.

What Makes a Timber Door Fire-Rated?

Timber doors are a popular choice for their natural beauty and warmth, but when it comes to fire safety, they need extra help to meet the required standards. That’s where fire-resistant coatings and treatments come in. These special finishes and treatments are what give timber doors their fire-rated edge. Let’s explore how they work and what you need to know about maintaining them.

Special Construction and Materials

Fire-rated timber doors are designed to resist fire and smoke, but they don’t achieve this by magic. They’re built with specific features and materials that enhance their ability to withstand extreme heat.

Fire-Resistant Wood Core and Solid vs. Engineered Wood

At the heart of every fire-rated timber door is its core. This is where the fire resistance begins. Two main types of wood are used in fire-rated doors: solid wood and engineered wood.

Solid Wood:

Solid timber doors are made from a single piece of wood, which is treated to improve its fire resistance. While solid wood is strong and durable, it can be heavier and more expensive. However, it’s a great choice if you’re looking for a door with a traditional, high-quality feel.

Engineered Wood:

Engineered wood, conversely, is made by bonding layers of wood together. This creates a strong, stable core that is less likely to warp or crack. Engineered wood is often treated with fire-resistant chemicals, making it a popular choice for fire-rated timber doors. It’s also lighter and more cost-effective than solid wood.

Both types of wood cores are designed to slow the spread of fire. They’re tested to ensure they can withstand high temperatures for a specific amount of time, whether 30 minutes (FD30) or 120 minutes (FD120).

Intumescent Seals and How They Work

Another key feature of fire-rated timber doors is the intumescent seal. These seals are what make the door truly fire-resistant. But how do they work?

Intumescent seals are strips of material that expand when exposed to heat. They’re usually installed around the edges of the door or within the door frame. When a fire breaks out and the temperature rises, these seals swell up, filling gaps between the door and the frame. This creates a tight seal that prevents flames and smoke from passing through.

Think of it like this: the intumescent seal acts as a barrier that “puffs up” to block fire and smoke. Without these seals, even the best timber door wouldn’t be able to provide the level of protection needed in a fire.

In addition to intumescent seals, fire-rated timber doors often have other safety features, like fire-resistant glass panels or metal reinforcements. These elements work together to make the door as effective as possible in emergencies.

Summary

In summary, what makes a timber door fire-rated is a combination of its fire-resistant wood core and advanced features like intumescent seals. Whether it’s made from solid wood or engineered wood, a fire-rated timber door is built to protect you and your property.

Fire-Resistant Coatings and Treatments

Fire-rated timber doors aren’t just made from fire-resistant wood—they’re also treated with special coatings and finishes to boost their ability to withstand fire. These treatments play a big role in ensuring the door can protect you when it matters most.

How Fire-Retardant Finishes Enhance Protection?

Fire-retardant finishes are like a shield for your timber door. They’re applied to the surface of the wood and work in two main ways:

1. Slowing Down Combustion:

Fire-retardant coatings contain chemicals that react to heat. When exposed to fire, these chemicals release gases that slow the burning process. This gives the door more time to resist the flames, helping to contain the fire and protect the surrounding area.

2. Creating a Char Layer:

When exposed to high temperatures, some treatments cause the wood to form a char layer. This charred layer acts as insulation, protecting the inner core of the timber door from the fire. It’s like the door grows its protective barrier in the heat of the moment.

These finishes are tested rigorously to ensure they meet fire safety standards. Whether it’s a 30-minute (FD30) or 120-minute (FD120) fire-rated timber door, the coatings are designed to perform for the specified time.

Does Painting or Varnishing Affect Fire Resistance?

1. Fire-Retardant Paints:

If you want to add color or finish to your timber door, use special fire-retardant paints. These paints are formulated to maintain or enhance the door’s fire resistance. They work similarly to fire-retardant coatings, providing an extra layer of protection.

2. Regular Paints or Varnishes:

Standard paints and varnishes, however, can interfere with the door’s fire resistance. They might not react well to high temperatures and could even fuel the fire. If you use regular paint or varnish, you could void the door’s fire rating.

The Role of Fire Door Hardware

Regarding fire safety, the hardware on your timber door is just as important as the door itself. Fire-rated hardware is designed to withstand high temperatures and ensure the door functions properly in an emergency. Here’s what you need to know.

So, if you plan to customize your fire-rated timber door, always check with the manufacturer first. They can recommend the right products to use without compromising safety.

In summary, fire-resistant coatings and treatments make a timber door truly fire-rated. They slow down combustion, create protective char layers, and strengthen the door to resist flames. And if you want to paint or varnish your door, use fire-retardant products to keep its protective qualities intact.

Fire-Rated Hinges, Closers, and Locks

1. Fire-Rated Hinges:

These aren’t your average hinges. Fire-rated hinges are made from materials that can handle extreme heat without melting or failing. They’re also designed to support the weight of the timber door, ensuring it stays in place during a fire. The door could warp or collapse without these hinges, letting flames and smoke through.

2. Fire-Rated Closers:

A fire-rated door closer ensures that the timber door closes automatically after opening. This is crucial because an open door can’t protect you from fire or smoke. Fire-rated closers are built to work even under high temperatures, so you can count on them to do their job when it matters most.

3. Fire-Rated Locks:

The locks on a fire-rated timber door must be fire-resistant. Standard locks can fail under heat, preventing the door from closing properly. Fire-rated locks are made from materials that won’t melt or warp, keeping the door secure and functional during a fire.

The Importance of Smoke Seals and Vision Panels

Smoke Seals:

Smoke is just as dangerous as fire, and smoke seals are there to stop it. These seals are installed around the edges of the timber door and expand when exposed to heat, creating a tight barrier preventing smoke. They work hand-in-hand with intumescent seals to keep the door as effective as possible.

Vision Panels:

Vision panels, or fire-rated glass panels, are often added to timber doors for safety and convenience. They allow people to see through the door, which can be crucial during an evacuation. But not just any glass will do—fire-rated vision panels are made from special glass that can withstand high temperatures without breaking. They’re a great addition to timber doors in places like schools, offices, or hospitals, where visibility is important.

Summary

In summary, the hardware on a fire-rated timber door makes it truly effective in a fire. From hinges and closers to locks and seals, every piece is designed to work together to keep you safe. And with features like smoke seals and vision panels, these doors don’t just protect—they also provide peace of mind.

How to Identify a Certified Fire-Rated Timber Door?

Regarding fire safety, not all timber doors are created equal. A certified fire-rated timber door has been tested and proven to meet strict safety standards. But how do you know if the door you’re buying is the real deal? The answer lies in the certification labels. Let’s dive into what to look for and why it matters.

Look for Fire Door Certification Labels

Certification labels are like a stamp of approval for fire-rated timber doors. They tell you the door has been tested and meets specific safety standards. Without these labels, you can’t be sure the door will perform as expected in a fire. Here’s how to spot them and what they mean.

What to Check on the Label?

The certification label is your first stop when inspecting a fire-rated timber door. Here’s what to look for:

Fire Rating: The label should clearly state the door’s fire rating, such as FD30, FD60, FD90, or FD120. This tells you how long the door can resist fire and smoke.
Certification Body: Look for the name or logo of the organization that certified the door. Depending on your location, this could be UL, BS, EN, or AS. More on these in a moment.
Test Standard: The label should mention the standard the door was tested against, like BS 476, EN 1634, or AS1905. This ensures the door meets the required safety criteria.
Manufacturer Details: A reputable label will include the name of the manufacturer and sometimes even a serial number. This helps you trace the door back to its source if needed.
Installation Instructions: Some labels also include guidelines for proper installation. This is important because even the best fire-rated timber door won’t work if installed incorrectly.

Key Fire Door Certification Bodies

Different countries have different organizations that certify fire-rated timber doors. Here are some of the most well-known ones:

1. UL (Underwriters Laboratories):

Common in the U.S., UL certification means the door has been tested to withstand fire for a specific time. Look for labels like “UL 10C” or “UL 10B.”

2. BS 476:

This is a British standard used in the UK. It tests how well a timber door can resist fire and heat. Doors certified under BS 476 will have a label showing their fire rating.

3. EN 1634:

This is a European standard used across many countries. It’s similar to BS 476 but follows EU regulations. You know the door meets European safety standards if you see “EN 1634” on the label.

4. AS1905/1530:

In Australia, fire-rated timber doors are tested under AS1905 or AS1530. These standards ensure the door can handle fire and smoke for the specified time.

Summary

Certification labels are your best friend when identifying a genuine fire-rated timber door. They tell you everything you need about the door’s safety and performance. So, before you buy, always check for the label and ensure it’s from a trusted certification body. After all, you don’t want to take any chances when it comes to fire safety.

How to Verify Fire Door Installation?

A fire-rated timber door is only as good as its installation. It could fail when you need it most if it’s not fitted correctly. Here’s what you need to know to ensure your door is installed correctly.

Why Proper Installation Matters?

Think of a fire-rated timber door like a puzzle piece. If it doesn’t fit perfectly, the whole picture falls apart. Proper installation ensures that the door can do its job: keeping fire and smoke at bay. Here’s why it’s so important:

1. Gaps Are a Big No-No:

Even a small gap around the door can let smoke and flames through. Proper installation ensures the door fits snugly in its frame, with no gaps for fire to sneak through.

2. Hardware Must Work Correctly:

Fire-rated hinges, closers, and locks are designed to function under extreme heat. They might not work when it counts if they’re not installed properly.

3. Seals Need to Be Perfect:

Intumescent and smoke seals only work if installed correctly. They won’t expand properly if misaligned or damaged to block fire and smoke.

4. Compliance with Regulations:

n many places, fire-rated timber doors must be installed according to specific building codes. If they’re not, you could face fines or even legal issues.

Common Mistakes That Can Compromise Fire Performance

Even small errors during installation can make a big difference. Here are some common mistakes to watch out for:

1. Ignoring the Gap:

The gap between the door and the frame should be consistent and within the limits set by the manufacturer (usually 2-4mm). Too big, and fire and smoke can get through. Too small, and the door might not close properly.

2. Skipping the Seals:

Intumescent and smoke seals are essential but often overlooked. Make sure they’re installed correctly and aren’t damaged during the process.

3. Using the Wrong Hardware:

Fire-rated timber doors need fire-rated hardware. Standard hinges, closers, or locks can compromise the door’s performance.

4. Poor Alignment:

If the door isn’t aligned properly, it might not close fully or could stick. This can prevent it from forming a tight seal during a fire.

5. Ignoring the Frame:

The door frame is as important as the door itself. The system can fail if the frame isn’t fire-rated or installed correctly.

Proper installation is the key to ensuring your fire-rated timber door does its job. Avoid common mistakes like gaps, poor alignment, or using the wrong hardware. And remember, when in doubt, call a professional.

Fire-Rated Timber Doors in Different Settings

Fire-rated timber doors aren’t just for homes—they’re also a big deal in commercial and public buildings. These doors are built to handle high-traffic areas while keeping people safe. Whether a busy hotel or a quiet hospital wing, timber fire doors do the job without compromising style or safety.

Fire Doors for Homes

Fire doors for homes are a must-have for safety. They are designed to stop the fire from spreading, giving you and your family more time to escape. Timber doors are a popular choice because they are strong and can be made to look like any other door in your home.

Where to Install Fire Doors in Residential Properties?

In residential properties, fire-rated timber doors should be installed in key areas. These include between the garage and the house, in front of the kitchen, and on bedroom doors if they lead to a hallway. Placing these doors in the right spots can make a big difference in an emergency.

Also, if your home has multiple floors, consider installing timber fire doors at the top and bottom of the stairs. This helps to block fire from moving between levels. Remember, the goal is to create safe zones where fire can be contained.

Do You Need a Fire-rated Door for Your Home?

You might wonder if you need a fire-rated timber door for your home. The answer depends on your local building codes and the layout of your house. In many places, having at least one fire door is required by law, especially in newer homes.

A fire-rated timber door is a smart investment, even if not required. It adds an extra layer of safety and can even increase your home’s value. Modern timber fire doors come in many styles, so you don’t have to sacrifice looks for safety.

Summary

In summary, fire-rated timber doors are a practical and stylish choice for any home. They help keep your family safe and can be installed in key areas to maximize protection. Whether you need one or not, having a fire door is always a good idea.

Fire Doors in Commercial and Public Buildings

Fire safety is non-negotiable in places like hotels, hospitals, and office buildings. Fire-rated timber doors are a go-to solution because they’re durable, reliable, and can blend seamlessly into any design. Plus, they’re tested to withstand fire for a specific time, which is crucial in crowded spaces.

Hotels, Hospitals, and Office Buildings

Hotels, hospitals, and office buildings all have one thing in common: they must keep people safe while maintaining a professional look. Timber fire doors are perfect for this. In hotels, they’re often used in hallways, stairwells, and between guest rooms. Not only do they look elegant, but they also help contain fires, giving guests more time to evacuate.

Hospitals, on the other hand, rely on fire-rated timber doors to protect patients and staff. These doors are installed in critical areas like operating rooms, patient wards, and emergency exits. They’re designed to meet strict safety standards, ensuring they can handle the unique demands of a healthcare environment.

Office buildings also benefit from timber fire doors. They’re commonly placed in corridors, near elevators, and between different building sections. This helps compartmentalize the space, slowing the spread of fire and smoke. And let’s be honest—timber doors look more professional than metal ones, a bonus for any business.

Fire Door Regulations and Compliance

Regarding fire doors in commercial and public buildings, regulations are strict—and for good reason. Fire-rated timber doors must meet specific standards, like resisting fire for 30, 60, or 90 minutes. These ratings depend on the building’s size, purpose, and local fire safety laws.

Compliance is key. Building owners must ensure their timber fire doors are installed correctly and regularly maintained. This includes checking the door’s seals, hinges, and closing mechanisms. If a door doesn’t close properly during a fire, it won’t do its job. Regular inspections by certified professionals are a must to stay compliant and keep everyone safe.

Summary

In short, fire-rated timber doors are a smart choice for commercial and public buildings. They’re tough, reliable, and meet strict safety standards. Whether it’s a hotel, hospital, or office, these doors provide peace of mind—and they look good doing it. So, if you’re managing a public space, don’t skimp on fire safety. Timber fire doors are worth every penny.

Choosing the Right Fire-Rated Timber Door

Factors to Consider When Buying a Fire Door

When shopping for a fire-rated timber door, remember a few big things. Fire rating, material, and design are at the top. You’ll also want to ask your supplier the right questions to ensure you get exactly what you need.

Fire Rating, Material, and Design Options

First up, fire rating. This tells you how long the door can withstand fire—usually 30, 60, or 90 minutes. The rating you need depends on where the door will be installed and your local building codes. For example, a 30-minute timber fire door might be fine for a home, but a hospital or office building might need a 90-minute door.

Next, material. Timber doors are popular because they’re strong, durable, and look great. But not all timber is the same. Look for doors made from high-quality, fire-resistant wood. Some timber fire doors also come with added layers of fireproof material for extra protection.

Finally, design. Just because it’s a fire door doesn’t mean it has to look boring. Modern timber fire doors come in all styles, from sleek and contemporary to classic and traditional. You can choose different finishes, like painted or stained wood, to match your decor. Don’t forget about hardware, either—handles, hinges, and locks should all be fire-rated too.

What to Ask Your Supplier?

When talking to a supplier, don’t be shy—ask lots of questions. Here are a few to get you started:

What fire rating do I need? Your supplier should know the local regulations and can help you pick the right rating for your space.
Is the timber sustainably sourced? If eco-friendliness is important to you, ask about the door’s materials. Many suppliers now offer FSC-certified timber doors.
Can I customize the design? Ask if the door can be tailored to your needs if you want a specific look. Some suppliers offer made-to-order timber fire doors.
What’s included in the price? Make sure you know if installation, hardware, and delivery are included. You don’t want any surprises later.
How do I maintain the door? Fire-rated timber doors need regular checks to stay effective. Ask your supplier for maintenance tips and recommended inspection schedules.

Custom vs. Standard Fire Doors

Standard fire doors are ready-made and widely available, while custom fire doors are tailored to your requirements. Both options have their place, but understanding the differences can help you make the best choice for your space.

Can You Get A Custom Fire-rated Timber Door?

Absolutely! Custom fire-rated timber doors are a great option if you need something unique. You may have an unusual door size or want a specific design to match your interior. Whatever the case, many suppliers offer made-to-order timber fire doors that can be customized to fit your needs.

For example, a custom timber door can be built to fit perfectly if you’re renovating an older home with non-standard door frames. Or, if you’re designing a modern office and want a sleek, minimalist look, you can choose a custom design that matches your vision. The possibilities are pretty much endless.

However, remember that custom doors take longer to make and install. A standard fire-rated timber door might be better if you’re on a tight timeline. But if you have the time and budget, going custom can give you a door that’s both functional and uniquely yours.

The Cost Difference Between Standard and Custom Doors

Let’s talk money. Standard fire-rated timber doors are generally more affordable because they’re mass-produced. You can find them at most building supply stores, and they come in various sizes and styles. A standard door is a solid choice if you work with a tight budget.

Custom timber fire doors, on the other hand, cost more. Why? Because they’re made just for you. The process involves more labor, materials, and time, increasing the price. But for many people, the extra cost is worth it. A custom door can add a unique touch to your space and solve problems that a standard door can’t.

For example, the custom is the way to go if you need a fire-rated timber door with special features—like extra soundproofing or a specific finish. Just be prepared to pay a premium for those extras.

Relate FAQ

How is a timber fire door tested and certified?

Timber fire doors undergo rigorous testing according to standards such as BS 476, UL10, and EN 1634-1. These tests assess fire resistance, integrity, and insulation. Once passed, they receive certification from recognized bodies like Certifire or BM TRADA.

What factors affect the fire rating of a timber door?

Several factors influence a timber door’s fire rating, including:

Core material (e.g., solid timber, particleboard, or mineral core).
Intumescent seals that expand under heat.
Door frame and hardware (fire-rated hinges, closers, and glazing).
Correct installation according to fire safety guidelines.

Can a standard timber door be upgraded to a fire-rated door?

A regular timber door cannot simply be upgraded to a fire-rated one unless it has been tested and certified. To meet safety standards, fire doors are constructed with specialized cores, seals, and components.

How do I identify a fire-rated timber door?

You can check for:

Certification label or plug from a recognized authority.
Fire-resistant seals around the edges.
Fire-rated glazing (if applicable).
Heavy-duty hardware, such as automatic door closers and fire-rated hinges.

Where are fire-rated timber doors required?

Fire-rated timber doors are commonly required in the following ways:

Apartments and residential buildings (especially in escape routes).
Hotels and commercial spaces.
Hospitals and schools.
Industrial and high-risk environments.

How often should timber fire doors be inspected?

Fire doors should be inspected every six months to comply with safety standards. Regular maintenance includes checking door seals, hinges, and the door closer for proper functionality.