Commercial Hollow Metal Doors

Hollow Metal Door Hinges

BALL BEARING HINGES

CONTINUOUS GEAR HINGE

A saddle threshold, also known as a door saddle or simply a threshold, is a horizontal piece of material that is commonly installed at the base of a door frame.

Its primary purpose is to provide a smooth transition between two different flooring surfaces and to seal the gap between the bottom of the door and the floor.

Here at Dover we offer a variety of door latches for hollow metal doors including levers, mortise locks, panic bar exit devices, push/pull set, and knobs.

Hollow metal door latches are components used in hollow metal doors, which are typically used in commercial and industrial settings for their durability and security features. These latches are designed to keep the door securely closed and can be locked or unlocked using various mechanisms. Here are some key points about hollow metal door latches.

Types of Latches:

Deadbolt Latch: This type of latch extends a bolt into a strike plate in the door frame, providing enhanced security.

Mortise Latch: Mortise latches are often used in conjunction with mortise locks. They are installed within a cutout (mortise) in the door, providing a secure and more aesthetic solution.

Cylindrical Latch: Cylindrical latches are commonly used with cylindrical locks, like lever or knob locks. They are easier to install than mortise latches.

Locking Mechanisms:

Keyed Latch: A latch that can be locked and unlocked with a key from the outside.

Passage Latch: A latch that doesn’t lock and is typically used on interior doors.

Privacy Latch: A latch that can be locked from the inside, typically used in bathroom or bedroom doors.

Strike Plate: The strike plate is the metal plate installed on the door frame, against which the latch extends or engages when the door is closed. It helps ensure the door is securely closed and provides a surface for the latch to lock into.

Handing: Some latches and locks are handed, meaning they are designed for either a right-handed or left-handed door. It’s important to select the appropriate handing for proper installation.

Material: Hollow metal door latches are typically made of steel or other sturdy materials to ensure they can withstand heavy use and provide security.

Accessibility and Building Codes: When installing door latches on commercial buildings, it’s important to consider accessibility requirements, building codes, and fire safety regulations to ensure compliance.

Hollow metal door latches are an essential component for maintaining the security and functionality of commercial and industrial doors. Proper installation and selection of the right type of latch are critical to achieving the desired level of security and ease of use.

Hollow metal doors can indeed be insulated. Insulating a hollow metal door can help improve its thermal efficiency, reduce heat loss or gain, and enhance sound insulation. Here are some common methods to insulate a hollow metal door:

Foam Core Inserts: One of the simplest and most cost-effective ways to insulate a hollow metal door is to insert foam core panels into the door’s void. These foam core inserts are designed to fit the door’s dimensions and can be placed inside the door. They come in various thicknesses and R-values to provide different levels of insulation.

Blanket or Batt Insulation: You can also use blanket or batt insulation to insulate a hollow metal door. These insulation materials are often made from fiberglass or other insulating materials. They can be cut to fit the door’s dimensions and placed inside the hollow section.

Spray Foam Insulation: Another option is to use spray foam insulation. This involves spraying a special foam insulation material into the hollow cavity of the door. It expands to fill the space and provides a good seal, which can enhance thermal and sound insulation.

Solid-Core Door Replacement: If you want to significantly improve insulation, you can replace the hollow metal door with a solid-core door. Solid-core doors have a solid filling, such as particleboard or composite materials, that provides better insulation properties compared to hollow metal doors.

When insulating a hollow metal door, consider the specific needs of your application, such as whether you want to enhance thermal insulation, sound insulation, or both. Additionally, ensure that the insulation does not interfere with the operation of the door, such as its hinges and locks. Professional installation may be necessary for some insulation methods, especially if it involves altering the door’s structure.

Hollow metal doors can be fire-rated, but not all of them are. Whether a hollow metal door is fire-rated depends on the specific design and materials used in its construction. Fire-rated doors are designed to withstand fire and heat for a specified duration, providing a barrier that helps contain the spread of fire and smoke in a building. Fire-rated doors are typically rated based on the amount of time they can resist fire, such as 20 minutes, 60 minutes, or 90 minutes.

To determine if a hollow metal door is fire-rated, you should look for a label or certification from a recognized testing and certification organization, such as Underwriters Laboratories (UL) in the United States. These labels will specify the door’s fire rating and other relevant information. Fire-rated doors are often equipped with fire-resistant cores, gaskets, and other components to meet the required fire safety standards.

If you are unsure whether a hollow metal door is fire-rated or what specific fire rating it has, it is essential to consult the manufacturer or a fire safety professional. Using the appropriate fire-rated doors in a building is crucial for maintaining the safety and integrity of the structure in the event of a fire.

Knowing when to get a new hollow metal door depends on various factors, including its condition, functionality, and your specific needs. Here are some common situations where it might be necessary to replace a hollow metal door:

Visible Damage: If the door has significant visible damage, such as dents, rust, or corrosion, it may be a good idea to replace it. This damage can compromise the door’s integrity and aesthetics.

Safety Concerns: If the door is no longer secure or poses a safety risk due to issues like a damaged frame or malfunctioning hardware, it should be replaced to ensure the safety of occupants.

Fire Code Compliance: If your building’s fire code or safety regulations require a fire-rated door, and the existing door does not meet those standards, you should replace it with a fire-rated door that complies with local codes.

Thermal Efficiency: If you are looking to improve energy efficiency and reduce heating or cooling costs, you may consider replacing a non-insulated or poorly insulated door with a more energy-efficient option.

Sound Insulation: If you require better sound insulation in a particular area, you may replace the door with one designed to reduce noise transmission, such as a soundproof door.

Functionality: If the door no longer functions properly, such as issues with hinges, locks, or latching mechanisms, it may be time for a replacement to restore functionality.

Aesthetics: If you want to update the appearance of your space or improve its curb appeal, replacing a worn or outdated door can be an effective way to achieve that.

Security Upgrades: If security concerns arise or you want to enhance the security of your property, you might consider replacing the door with a more secure option, such as a heavy-duty security door.

Wear and Tear: Over time, hollow metal doors may deteriorate due to normal wear and tear. If maintenance and repairs are no longer effective, replacement may be necessary.

Building Renovation or Expansion: If you are renovating or expanding your building, you may need to replace doors to accommodate new layouts, door sizes, or design preferences.

When deciding to replace a hollow metal door, it is essential to consider the door’s function, your specific requirements, and local building codes and regulations. It is also advisable to consult with a professional, such as a contractor or a door specialist, to ensure that the replacement door meets your needs and is installed correctly.