
By definition, a fire rated door is an entryway or door manufactured with the purpose to resist spreading fire if any part of your commercial structure catches fire. If a fire breaks out in your kitchen, with fire rated doors in place, and with all doors closed, the fire will take longer to spread to the dining room and break room.
What is a 20 min fire rated door?
20 minute fire doors, or 1/3 hour doors are used in 1 hour rated walls to separate corridors where smoke and draft control are required. In residential applications most doors separating the garage from the living quarters require a 20 minute label.
What is a fire rated residential door?
Fire-rated residential doors are designed to confine fires to a certain area of a residential building and prevent fire and smoke from spreading throughout an entire house or complex. These doors are rated to provide a specific Fire Resistance Level (FRL), which tests structural adequacy, structural integrity, and insulation.
What are fire rated doors?
Fire-rated doors are constructed of materials that work together to slow or stop the spread of flames, smoke and, in certain applications, radiant and conductive heat transfer. Common materials include wood, steel, fiberglass and fire-rated glass —or a combination of these materials. Fire-rated doors are referred to as assemblies and include ...
Can a glass door be fire rated?
While it is not commonly known, fire doors can have glass in them, and glazed fire doors are becoming increasingly popular. How much glass can be in a fire rated door? Resolution: A fire rated door for 3 hours can have one glass light maximum: 100 square inches and must have an approved glass (Firelite type) Max glass size cannot exceed 12" in width or 33" in height.

What makes an interior door fire rated?
Fire-rated doors are constructed of materials that work together to slow or stop the spread of flames, smoke and, in certain applications, radiant and conductive heat transfer. Common materials include wood, steel, fiberglass and fire-rated glass—or a combination of these materials.
Do interior doors need to be fire rated?
Today, fire-rated doors are usually a requirement for most buildings in order to adhere to the International Building Code (IBC) mandates. A fire-rated door is typically located around stairwells and elevator shafts to help prevent smoke and fire from traveling throughout multiple floors of a building.
How do you know if a door is fire rated?
The first and most prominent way is to look at the edge of the door on the hinge side. All fire doors will have a metal identification tag (figure 1) . Sometimes this tag is painted over, but it will still be recognizable as an identification tag.
Is a solid wood door considered fire rated?
Though the thickness of the door is not an issue, a fire-rated solid-core door typically comes 13/4 ” or 21/4 “ thick. The fire rating of a solid-core wood door ranges widely, depending largely on its core materials....Hours of Operation.Mon - Sat8:00AM - 8:00PMSun10:00AM - 4:00PMMay 3, 2021
Can you turn a normal door into a fire door?
By using a fire door varnish and associated hardware, you can transform and upgrade your doors at the same time. You have the choice of different finishes, depending on the look and feel of your surroundings, so you don't need to compromise when it comes to decoration.
What are the legal requirements for a fire door?
Fire doors will have at least 3 hinges with a melting point above 800 degrees centigrade and apertures for glazing and for letter boxes should be in place at testing.
Do bedroom doors need to be fire doors?
Are fire doors a legal requirement? Fire doors are a legal requirement in all non-domestic properties, such as businesses, commercial premises, and public buildings. They are also required in residential flats and houses of multiple occupancy.
What makes a door 20-minute fire rated?
A 20-minute fire-rated door is one that isolates a room during 20 minutes whilst exposed to fire. This kind of door is known as fire-rated EI2-20, and it is useful for places where you want extra protection even though a fire-rating is not demanded. Flame-proof doors usually also have some fire-rating.
What makes a door fire-resistant?
To enhance their fire-stopping abilities, fire doors are flush with the frame; any gaps are filled with silicone-based fire-resistant sealant. These are often accompanied by an intumescent strip attached at the base of the door, which expands when exposed to heat to prevent smoke from seeping underneath.
Can a hollow core door be fire rated?
Hollow doors typically get damaged more easily and are harder to repair when they do. They provide little in the way of insulation and cannot be rated for fire or acoustics. They are most often selected for interior applications in the multi-family and hospitality markets.
What makes a wooden door fire rated?
Fire-rated doors are manufactured using certain fire-resistant materials such as gypsum, glass, steel, metal, timber, or vermiculite boards. These doors can prevent the spread of fire to nearby unaffected areas and gives enough time for the emergency services to put out the fire.
Can a wooden door be a fire door?
Architectural grade wood fire doors control the spread of fire and smoke for up to 1-1/2 hours (90 minutes). Fire doors are often used on openings leading from corridors to offices, closets, storage rooms, stairwells, mechanical rooms, or any other opening that penetrates a fire barrier wall.
What residential doors should be fire rated?
Both wood and steel hollow metal doors can be used as fire rated doors. There are limits to the amount and type of glass that can be used in a door for a lite. Appropriate hardware. Fire doors must be self-closing as well as self-latching and only approved steel ball bearing hinges can be used.
What is the difference between a fire door and a normal door?
Fire doors are given a fire-resistance rating, and are usually made of a combination of glass, gypsum, steel, timber and aluminium. They are designed to be kept closed, and any gaps between the wall and the door must be filled with a fire resistant sealant.
What door rating is required for a 2 hour wall?
Doors rated for 1-1/2 hours are required in 2-hour rated walls. These doors are commonly located in stairwells, or other enclosures of vertical passage through a building. They also occur in boiler rooms and in exterior walls that have the potential for severe fire exposure from the outside of the building.
What makes a door 20-minute fire rated?
A 20-minute fire-rated door is one that isolates a room during 20 minutes whilst exposed to fire. This kind of door is known as fire-rated EI2-20, and it is useful for places where you want extra protection even though a fire-rating is not demanded. Flame-proof doors usually also have some fire-rating.
What is a fire rated door?
Fire-rated doors help reduce the spread of fire and smoke in a home or building. Both commercial and residential structures can use fire-rated doors.
What is the clearance for a door?
Door clearances at the door edge of the door frame (wood door), on the pull side of the door, do not exceed clearances listed in 4.8.4 (the clearance under the bottom of the door, maximum of 3/4″) and 6.3.1 (top and edges, 1/8″); or for metal doors (top and edges, up to 3/16″)
What is the NFPA 80 standard?
The National Fire Protection Association (NFPA) 80 standard regulates the installation and maintenance of assemblies and devices used to protect openings in walls, floors and ceilings against the spread of fire and smoke. The International Building Code (IBC) and International Fire Code (IFC) reference the NFPA 80 standard.
How hot does a door need to be to be tested?
Testing of doors uses heat up to 1925 degrees Fahrenheit. If the door remains in the frame with no through openings and limits flames, it’s certified with an endurance rating of the appropriate minutes. After the fire endurance test, the test specimen undergoes the hose stream test.
Do doors have holes in them?
No open holes or breaks exist in surfaces of either the door or frame
Does fire rated glass contain sodium silicate?
If a window is present,it must have a rating as well. Fire-rated glass may contain wire mesh glass, liquid sodium silicate, ceramic glass or borosilicate glass. Wired glass typically withstands the fire. The sodium silicate liquid acts to insulate heat transfer.
What are fire-rated doors?
Fire-rated doors are constructed of materials that work together to slow or stop the spread of flames, smoke and, in certain applications, radiant and conductive heat transfer. Common materials include wood, steel, fiberglass and fire-rated glass —or a combination of these materials.
How long does a fire rated door last?
Standard fire ratings vary, typically ranging from 20 to 180 minutes depending on code criteria. Fire-rated doors are required to be self-closing and positive latching. They must remain closed during a fire to protect the means of egress.
What is TGP door?
TGP offers Fireframes® Designer Series and Fireframes Heat Barrier Series doors and frames to bring exceptional clarity and visibility to even the most demanding applications.
What is fire protection glass?
If an assembly is fire-protective, it defends against the spread of flames and smoke for its designated fire rating. Fire-protective doors are typically suitable where building codes allow “opening-protective” assemblies, including the door, its sidelites and windows. Fire-protective glazing materials suitable for these doors include traditional wired glass, glass ceramic and specially tempered glass. For full-lite glass door applications, TGP provides fire protective glazing available with fire ratings ranging from 20 to 90 minutes with the required hose stream test.
How long does it take for a glass door to fire?
Fire-rated glass door assemblies are currently available with fire ratings from 20 to 90 minutes. Thanks to improved manufacturing processes, they can accommodate full-lite fire-rated glass with color and surface quality comparable to ordinary window glass. While serving as a defense against the spread of fire, modern fire-rated glass doors serve as a regular pathway for occupants, supporting good visibility and wayfinding.
What is a temperature rise door?
Doors tasked with the additional job of limiting heat transfer from one side of the door to the other are referred to as temperature-rise doors. Doors that provide this critical level of protection do so by preventing the temperature rise on the non-fire side of the door assembly from exceeding 450 degrees Fahrenheit above the ambient temperature within the first 30 minutes of a fire test. This helps ensure occupants can still pass by a door to exit a building if temperatures reach high levels on the fire side of the door. Such glass must also pass the hose stream test. TGP’s Fireframes® Heat Barrier Series doors, for example, have fire ratings from 60 to 90 minutes and meet critical temperature rise criteria.
Why do fire doors need to be closed?
They must remain closed during a fire to protect the means of egress. Fire-rated doors are more common in commercial buildings than residential structures. They are typically utilized in areas of egress, such as lobbies, stairwells, storefronts and exits, to meet code requirements and enhance occupant safety.
What is the fire rating of Simpson doors?
Simpson offers thousands of choices for fire-rated doors, including 20-minute fire-rated wood doors and MDF doors with fire ratings up to 90-minute. And since Simpson fire doors have been designed to match other interior doors, your fire-rated doors will blend seamlessly with all doors in your home. Simpson MDF doors are available with 90-, 60-, 45- and 20-minute fire ratings. Learn more about your design options for these doors here:
What is a 20 minute fire rating?
Simpson 20-minute fire-rated doors comply with major code requirements for the 20-minute fire safety classification. This classification covers most residential requirements and can also meet commercial requirements for 20-minute. And best of all, Simpson 20-minute fire-rated doors match up perfectly with virtually any Simpson interior panel door, regardless of design or species.
How long should a fire door be rated?
If a wall is rated to withstand flames for an hour, then a minimum fire door rating of 45 minutes should be expected.
What is a Fire Door?
A fire door forms part of a passive fire protection system. Passive systems are an integral part of a building’s design and are designed to minimize the risk of fire spreading. They also inhibit the spread of smoke, which is actually the leading cause of death and injury in most fires.
How Do Fire Doors Work?
Fire doors form an effective barrier. This allows a building’s inhabitants to escape. They work in two ways:
Where Do I Need to Use Fire Doors, and When Are They Required?
If you own a commercial property, then it is a mandated requirement that you must have fire doors installed. Fire door requirements are also usually specified in your state’s local building codes.
Why are fire doors important?
Fire doors are a great safety feature that can help ensure an individual’s safety. They provide an effective barrier against smoke and flames and give occupants sufficient time to escape danger. It is important to note that a fire door is very different from a regular door. Its internal makeup is what offers protection.
How long does it take for a fire door to burn?
The door should be labeled with this rating too. Traditionally the door will be allocated a number rating in minutes. This could be 20, 45, 60, 90, or even 180 minutes!
What type of seal do fire doors use?
Certain types of fire doors use a simple heat-resistant rubber seal in place of an intumescent strip.
What does a fire rated door look like?
Fire rated wood doors and frames can look exactly like regular doors.
How tall is a fire door?
Answer – Varies by door manufacturer. Expect to be able to do 8’0 & 9’0 in height and 4’0 (single) & 7’0 (double) in width. Larger sizes are available. Most fire rated doors are 1-3/4” thick.
How long does it take for a door to fire?
Answer – Doors are usually rated to three-quarters (3/4) of what the wall fire rating is. So a 2 hour wall will require a 90 minute fire rated door. Exceptions occur, so review your local codes.
What is composite fire rated?
Composite fire rated material is used under the wood to maintain fire resistance during a fire. Answer – During a fire, expandable seals control the spread of fire/smoke within the gap between door and frame. Category A doors refer to the seals being built into the edge of the door which expands into the gap during a fire.
What testing labs are used to test fire doors?
Answer – Various testing labs with experience in fire testing doors. The majority of doors will be certified by UL (Underwriters Laboratorties), Intertek/Warnock Hersey, and QAI. Regardless of the listing agency, doors should be tested and be labeled as UL 10B, UL 10C & NFPA 252.
How big is a door glass?
Expect to see most manufacturers be able to do up to 100 sq inches (10” x 10” or 5” x 25”), but more companies have tested larger sizes in wood doors.
Do fire rated doors look the same as regular doors?
Answer – More than you’d imagine, and from a visual perspective, fire rated wood doors will look EXACTLY the same as a regular door! Options include a full array of Flush Doors (typically used in office, retail, medical, school, and other commercial oriented projects) which have a mineral composite core, agrifiber core or similar depending on the fire rating.
Chart of Door Ratings and Labels
As mentioned above, doors are labeled based on the amount of time (in hours or minutes) the door is expected to provide protection. Some very old doors may have a letter-rating, which corresponds to the time-based ratings. We include the letters in our chart below for reference, but the time-based ratings should be used on current projects.
Temperature-Rise Rating
Doors may also have a Temperature-Rise Rating in number of degrees. This represents the expected surface temperature on the unexposed side of the door after 30 minutes of fire exposure. You will see this marked as 250°, 450°, or 650°. Glass included in the door must also meet the temperature rise requirements.
S-Label or "Smoke Rating"
Many codes require an S-Label for certain doors in some occupancies. For instance, corridor doors often require smoke protection to prevent smoke from leaking from or into an occupied space.
Required Door Ratings Based on Partition Rating
The required door rating is based on the rating of the partition or barrier that the door is in. The table below provides an overview, but the building code should be referenced due to the complexity involved in determining the rating of the partition and the type of opening allowed.
Fire Rated Door Field Modifications
Field modifications of a fire rated door require specific knowledge of the codes and should be performed by a person qualified to work on rated openings. NFPA 80 provides specific guidance on what can and cannot be done to a rated door.
Fire Rated Door Annual Inspection
In the United States, NFPA 80-2019 (5.2.4) requires that fire rated doors be inspected each year to confirm that the door is in good condition and that all of the required components work as required. The building owner is responsible for having the inspections done by qualified person and for maintaining proper records of the inspections.
What is the function of a fire door?
Two of the most important functions fire doors have are: When closed, they form a barrier to stop the spread of fire. When opened, they provide a means of escape. Because of their importance in protecting lives, ...
What is the FD code for a door?
The most common two codes are generally considered to be FD30 and FD60.
What is required for fire safety?
There is more to passive fire protection and fire safety than just fire doors; escape routes, lighting, warning systems and equipment checks are also required.
What are fire doors made of?
Here are some of the key features to look out for in terms of both domestic and commercial use: Fire doors are made up of various components. The door itself is usually made from a solid timber frame, but they can sometimes be covered again in fire-resistant glass.
Why are specialist doors tested against the elements?
These specialist doors are tested against the elements and purpose-built to withstand roaring fires for as long as possible. They enable buildings to compartmentalise and delay the spread of fire from one area to another .
Is a fire door fit for purpose?
Worryingly, the Fire Door Inspection Scheme (FDIS) recently highlighted that three quarters of all fire doors inspected in 2019 were condemned as not fit for purpose. If you own a commercial or non-domestic property, there are strict regulations and guidelines to follow, ensuring the doors can withstand certain heats.
Do fire doors need to be inspected?
Because of their importance in protecting lives, it is imperative that fire doors receive regular inspections – frequency is likely to depend on many factors, including the age and condition of the door. It has been suggested that a minimum quarterly inspection rule may be applied when the new Fire Safety Bill is implemented, recommended in Phase One of the Grenfell Tower Inquiry. Worryingly, the Fire Door Inspection Scheme (FDIS) recently highlighted that three quarters of all fire doors inspected in 2019 were condemned as not fit for purpose.
Why are elevator doors fire rated?
Fire-rated elevator doors can greatly speed up evacuation times and help firefighters navigate through multiple floors with more ease. When elevator doors are also configured for smoke protection, an extra layer of safety is added that benefits emergency response teams and the building’s occupants.
Why are fire rated curtains important?
As we’ve learned, smoke- and fire-rated curtain systems play a particularly important role in the overall safety of a building, creating safe egress, compartmentalizing smoke, flames and heat, and saving lives and minimizing property damage . When using curtain systems in combination with fire-rated doors, testing requirements are complicated.
Do hospitals have fire doors?
Some buildings like hospitals may have special requirements that call for fire doors in different areas like hallways. These areas also need to secure access points, sealed off quarantine areas or have the capability to push things through the doorway (like carts or gurneys). Currently, architects use fire-rated swing doors in front of already fire-rated elevator doors to satisfy IBC codes for smoke containment at the elevator hoistway.
Do You Need Fire-Rated Doors?
SG Specialties is the leading provider of smoke- and fire-rated curtains and other life safety products.

Fire Door Materials and Parts
Standards For Fire-Rated Doors
- If a window is present,it must have a rating as well. Fire-rated glass may contain wire mesh glass, liquid sodium silicate, ceramic glass or borosilicate glass. Wired glass typically withstands the fire. The sodium silicate liquid acts to insulate heat transfer. The National Fire Protection Association (NFPA) 80standard regulates the installation and maintenance of assemblies and d…
Fire-Resistance Ratings
- The fire-resistance rating is the duration for which a passive fire protection system can withstand a fire-resistance test. It is most often a measurement of time. Fire ratings can be 20, 45, 60, 90 or 180 minutes. A third-party agency tests doors to ensure they meet the requirements.
Standards and Testing
- Testing of fire-rated doors is via Underwriters Laboratory (UL) standards and NFPA standards: 1. UL 10B, Fire Tests of Door Assemblies (neutral or negative pressure) 2. UL 10C, Positive Fire Pressure Tests of Door Assemblies 3. NFPA 252, Standard Methods of Fire Tests of Door Assemblies The IBC also requires side-hinged or swinging fire doors be tested with positive pres…
JELD-WEN Fire-Rated Doors
- We offer fire-rated doors for interior and exterior usage. The highest-rated exterior doors we offer (90-minute) are our IWP® wood series and steel doors. Our IWP wood and solid mineral core flush interior doors also offer ratings up to 90 minutes. You can view the complete listing of our fire-rated doors here.