What Are the Three Types of Doors?
What are the three types of doors? Learn about swinging, sliding, and revolving doors, their benefits, and how to choose the right commercial door for your building.
DOORS
When selecting a door for a commercial building, business, or property, understanding the different types of doors available is essential. Doors serve several purposes beyond providing an entrance or exit. They contribute to building security, energy efficiency, accessibility, privacy, fire protection, and the overall functionality of a space.
While doors come in dozens of styles, materials, and configurations, three of the most common categories are swinging doors, sliding doors, and revolving doors. Each type has distinct advantages and is designed for different applications. Choosing the right option depends on the building's layout, expected foot traffic, security requirements, and intended use.
For commercial property owners, selecting the appropriate door is particularly important. A poorly suited door can create accessibility challenges, increase maintenance costs, and interfere with daily business operations. Understanding how each type works can help building owners make an informed decision.
1. Swinging Doors
Swinging doors are among the most widely used door types in residential and commercial buildings. They operate on hinges attached to one side of the door frame, allowing the door to swing open and closed. Depending on the hardware and configuration, swinging doors can open in one direction or both directions.
These doors are commonly found in office buildings, retail stores, apartment complexes, schools, hospitals, restaurants, and industrial facilities. Their straightforward operation, versatility, and compatibility with different materials make them a practical choice for many commercial applications.
Common Types of Swinging Doors
Swinging doors are available in several configurations depending on the building's requirements:
Single Swing Doors: A single door panel attached to one side of the frame. These are commonly used for offices, storage rooms, restrooms, and standard building entrances.
Double Swing Doors: Two door panels installed side by side within one frame. They provide a wider opening and are frequently used in commercial buildings, warehouses, and high-traffic areas.
Double-Acting Doors: Doors designed to swing in both directions. They are often found in restaurants, commercial kitchens, hospitals, and other areas where employees need to move between spaces frequently.
Hollow Metal Swinging Doors: Steel doors commonly used in commercial and industrial environments where durability, security, and fire-rated construction are important.
Aluminum and Glass Swinging Doors: Frequently used in storefronts and office buildings to create a professional appearance while allowing natural light into the building.
Advantages of Swinging Doors
Swinging doors offer several benefits that make them a popular choice for commercial properties:
Versatility: Available in numerous sizes, materials, finishes, and configurations.
Security: Can accommodate commercial-grade locks, access control systems, panic hardware, and reinforced frames.
Durability: Steel and aluminum options can withstand frequent use and demanding environments.
Fire Protection: Certain door assemblies are available with fire ratings when properly specified and installed.
Cost Effectiveness: Standard swinging doors are generally straightforward to install and maintain compared to more complex door systems.
One important consideration is the amount of clearance required for the door to swing open. Buildings with limited hallway space, narrow entrances, or heavy pedestrian traffic may need an alternative configuration.
For commercial buildings, swinging doors must also be selected with applicable accessibility, fire safety, and building code requirements in mind. For example, certain exit doors require specific hardware and opening configurations to allow occupants to exit safely during an emergency.
2. Sliding Doors
Sliding doors operate by moving horizontally along a track rather than swinging outward or inward. This design eliminates the need for swing clearance, making sliding doors particularly useful in areas where space is limited or where a wide, unobstructed opening is desired.
Commercial sliding doors are commonly found in retail storefronts, office buildings, healthcare facilities, hotels, shopping centers, and other properties with frequent pedestrian traffic.
Unlike traditional swinging doors, sliding doors can accommodate large glass panels that create a modern appearance and allow natural light to enter the building. Depending on the application, they can be operated manually or equipped with automatic opening systems.
Common Types of Sliding Doors
Several configurations are available for commercial applications:
Automatic Sliding Doors: Electrically operated doors that open when motion sensors or other activation devices detect approaching pedestrians. These are common in grocery stores, hospitals, airports, and retail entrances.
Manual Sliding Doors: Doors that open and close by hand along a track. They are often used in offices, conference rooms, and interior commercial spaces.
Telescoping Sliding Doors: Systems that use multiple panels that slide and stack behind one another to create a wider opening within a limited space.
Sliding Glass Doors: Glass panels that move along a track, frequently used in storefronts, commercial entrances, and office environments.
Pocket Doors: Sliding doors that disappear into a recessed compartment within the wall when opened. These are more commonly used for interior applications where space efficiency is important.
Advantages of Sliding Doors
Sliding doors offer several practical benefits for commercial properties:
Space Efficiency: Because the panels move along a track, they do not require the clearance needed for swinging doors.
Accessibility: Automatic sliding doors can make building entrances easier to navigate for individuals using wheelchairs, walkers, or other mobility devices, when properly designed and maintained.
Modern Appearance: Glass sliding doors create a clean, contemporary appearance that works well for storefronts and professional office environments.
High-Traffic Convenience: Automatic systems allow customers, employees, and visitors to enter and exit without manually opening the door.
Natural Lighting: Large glass panels allow more daylight into the building, potentially reducing the need for artificial lighting during the day.
Despite these advantages, sliding doors require properly maintained tracks, rollers, sensors, and operating hardware. Dirt, debris, worn components, or mechanical problems can interfere with smooth operation.
Automatic sliding doors also require appropriate safety sensors and protective features to help prevent accidental contact with pedestrians. Regular inspections and maintenance are important to ensure the system operates reliably.
3. Revolving Doors
Revolving doors consist of multiple panels attached to a central rotating shaft. These panels rotate within a circular enclosure, allowing people to enter and exit the building while maintaining a separation between the indoor and outdoor environments.
They are most commonly associated with large commercial buildings, hotels, office towers, airports, and other properties with substantial pedestrian traffic.
Unlike traditional swinging or sliding doors, revolving doors are designed to manage the movement of people while helping limit the exchange of indoor and outdoor air.
How Do Revolving Doors Work?
A typical revolving door contains three or four vertical panels, also called wings, connected to a central shaft. As the panels rotate, they create separate compartments that allow individuals to pass through the entrance.
Revolving doors can operate manually, with pedestrians pushing the panels, or automatically using an electric motor and control system.
Many modern revolving door systems include safety features such as speed controls, obstruction detection, emergency breakout mechanisms, and sensors designed to reduce the risk of injury.
Advantages of Revolving Doors
Revolving doors offer several advantages, particularly for large commercial properties:
Energy Efficiency: The rotating compartments help reduce the direct exchange of indoor and outdoor air, which can reduce heating and cooling losses.
Temperature Control: They help maintain more consistent indoor temperatures by limiting drafts at busy entrances.
High-Traffic Management: Multiple people can enter and exit through separate compartments, helping manage pedestrian movement.
Architectural Appearance: Revolving doors provide a distinctive, professional appearance often associated with upscale commercial buildings.
Weather Protection: Their design helps reduce the amount of wind, rain, and outside air entering the building compared to many conventional entrance configurations.
However, revolving doors are not suitable for every building. They require more installation space, involve more complex mechanical components, and typically have higher installation and maintenance costs than standard swinging doors.
Accessibility and emergency egress must also be carefully considered. Depending on the installation, revolving doors may need adjacent swinging doors to provide an accessible route and an appropriate means of emergency exit.
How Do You Choose the Right Type of Door for a Commercial Building?
Choosing the right door involves more than deciding how it should open. Commercial property owners must consider the building's purpose, the amount of daily traffic, security requirements, maintenance expectations, and applicable building codes.
Here are several factors to consider when selecting a commercial door:
1. Building Function and Application
The type of business or facility plays a major role in determining which door is most appropriate. For example, a retail storefront may benefit from automatic sliding glass doors that accommodate frequent customer traffic. An office building may use aluminum and glass swinging doors to create a professional entrance. A warehouse or industrial facility may require heavy-duty steel doors designed for security and durability.
2. Security Requirements
Some commercial environments require greater protection than others. Businesses storing valuable equipment, inventory, or sensitive information may need reinforced doors, commercial-grade locks, access control systems, and heavy-duty frames.
Hollow metal doors are particularly popular in commercial and industrial applications because of their strength and compatibility with a variety of security hardware.
3. Energy Efficiency
Exterior doors play an important role in maintaining indoor temperatures. Poorly sealed doors can allow outside air to enter, making heating and cooling systems work harder.
Property owners should consider insulated door construction, weatherstripping, proper sealing, and the performance of the entire door assembly. Revolving doors can also help reduce air exchange at entrances with heavy pedestrian traffic.
4. Accessibility and Building Codes
Commercial doors must meet applicable building codes, fire safety requirements, and accessibility standards. Doorway width, opening force, maneuvering clearance, hardware, and emergency exit requirements can all influence which door system is appropriate.
For example, the Americans with Disabilities Act (ADA) generally requires accessible doorways to provide at least 32 inches of clear opening width. Revolving doors cannot serve as part of an accessible route, meaning an additional compliant entrance must be provided where required.
Property owners should work with qualified commercial door professionals to ensure the selected system meets the requirements for its intended application.
5. Maintenance and Long-Term Costs
The initial purchase price is only one part of a commercial door's overall cost. Property owners should also consider installation, replacement hardware, routine maintenance, and potential repairs.
For example, automatic sliding doors and revolving doors contain mechanical and electrical components that require periodic inspection and maintenance. Traditional swinging doors generally have simpler operating mechanisms, although hinges, closers, locks, and other hardware still require attention.
Are There Other Types of Commercial Doors?
Although swinging, sliding, and revolving doors are three widely recognized categories, commercial buildings use several additional door configurations.
Some of the most common include:
Rolling Steel Doors: Doors that coil into a compact overhead housing when opened. They are commonly used in warehouses, loading areas, storage facilities, and commercial storefronts.
Sectional Overhead Doors: Doors made of multiple horizontal panels that travel along tracks and open vertically. They are frequently installed in garages, industrial facilities, and service bays.
Folding Doors: Doors consisting of connected panels that fold together when opened. They are useful for creating wide openings in areas where traditional swinging doors would take up too much space.
Hollow Metal Doors: Heavy-duty steel doors commonly used in commercial buildings, schools, apartment complexes, hospitals, and industrial facilities. They can be manufactured in different configurations, including single and double swinging doors.
Storefront Glass Doors: Aluminum-framed glass doors commonly used at retail businesses, restaurants, office buildings, and other commercial properties.
It is important to understand that these categories are not necessarily mutually exclusive. For example, a hollow metal door describes its construction material, while a swinging door describes how it operates. A hollow metal door can therefore also be classified as a swinging door.
Understanding these distinctions helps property owners select a door based on both its construction and intended function.
Frequently Asked Questions About Commercial Door Types
What is the most common type of commercial door?
Swinging doors are among the most common types of commercial doors because of their versatility, durability, and straightforward operation. They are used throughout office buildings, retail spaces, schools, apartment complexes, and industrial facilities.
However, automatic sliding doors are also widely used in commercial properties with high pedestrian traffic, particularly at grocery stores, shopping centers, hospitals, and retail entrances.
What type of door is best for a commercial building?
The best type of door depends on the building's intended use, traffic volume, security requirements, and available space.
For example, hollow metal swinging doors are often a good choice for commercial facilities that prioritize security and durability. Aluminum and glass doors are popular for storefronts because they provide visibility and a professional appearance. Automatic sliding doors are useful for businesses that need convenient access for large numbers of customers.
There is no single door type that is best for every commercial property.
What is the difference between a hollow metal door and a storefront door?
A hollow metal door is typically constructed from steel and designed for durability, security, and demanding commercial applications. These doors are frequently used in stairwells, service entrances, mechanical rooms, and other areas where strength and fire-rated construction may be required.
A storefront door is generally constructed with an aluminum frame and glass panels. It is designed to provide visibility, natural light, and an attractive entrance for retail businesses and commercial properties.
Both types of doors can be appropriate for commercial buildings, but they serve different purposes.
What type of commercial door is best for high-traffic areas?
Automatic sliding doors are often a practical choice for high-traffic commercial entrances because they allow people to enter and exit without manually opening the door. They are particularly useful in grocery stores, hospitals, shopping centers, and large office buildings.
For interior spaces, double swinging doors may be more appropriate when employees or customers need to move equipment, carts, or supplies between rooms.
The best option depends on the type of traffic, available space, and safety requirements.
How long do commercial doors typically last?
The lifespan of a commercial door depends on its construction, quality, installation, frequency of use, and maintenance.
Steel and aluminum doors can provide many years of service when properly installed and maintained. However, individual components such as hinges, closers, rollers, locks, and automatic operators may require repair or replacement sooner.
Regular inspections can help identify worn hardware, damaged frames, alignment problems, and other issues before they result in a complete door failure.
Professional Commercial Door and Glass Services in Hampton Roads
Selecting the right commercial door is an important investment in the safety, functionality, and appearance of your property. Whether you need a new storefront entrance, durable hollow metal doors, replacement glass doors, or repairs to an existing commercial door system, working with an experienced commercial door contractor can help ensure the project is completed correctly.
Apex Door and Glass provides commercial door and glass services throughout Hampton Roads, Virginia, and Elizabeth City, North Carolina. With more than 20 years of combined industry experience, the team works with businesses, property managers, apartment communities, and commercial property owners to address their door and glass needs.
From storefront systems and aluminum entrances to hollow metal doors and commercial glass, Apex Door and Glass is committed to providing dependable workmanship and quality service.
If your commercial property needs new doors, replacement hardware, or professional door and glass repairs, contact Apex Door and Glass to discuss your project.
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