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Double entry doors, often a statement piece in both residential and commercial settings, demand robust and aesthetically pleasing hardware. Understanding the components that make up this hardware is crucial for both homeowners undertaking DIY projects and professionals ensuring a secure and functional installation. From the seemingly simple door handle to the intricate mechanisms within, each part plays a vital role in the door's overall performance and longevity. This article delves into the key components of double entry door hardware, providing a comprehensive overview of their function and considerations for selection.

Door Handles and Knobs

The handles or knobs are the most visible and frequently used parts of double entry door hardware. They come in a vast array of styles, materials, and finishes, allowing for seamless integration with diverse architectural styles. Common materials include brass, stainless steel, wrought iron, and various wood types. The choice depends on factors such as durability requirements, aesthetic preferences, and the overall budget. Consider the weight and feel of the handle; a hefty, well-balanced handle provides a more luxurious feel and often indicates better quality materials. For double doors, you'll need to consider whether you want matching handles on both doors, or if you prefer a different style for the active door (the one typically used for entry).

Beyond aesthetics, the internal mechanisms of the handle are crucial. They control the latch bolt that secures the door, and their quality directly impacts the door's security and longevity. Look for handles with sturdy internal components, ideally made of solid metal rather than plastic. Handles with lifetime warranties often indicate a higher level of confidence in the product's durability. The handle's mounting plate should also be robust and securely attached to the door, providing a stable base for the entire mechanism.

For double entry doors, there are specific considerations for handle placement. One door typically remains inactive, often acting as a decorative element or for visual balance. The active door will require a handle set with a latch bolt mechanism to secure it. The inactive door might incorporate a dummy handle, providing a consistent look without compromising security. Alternatively, some systems allow for both doors to be operable, requiring careful attention to handle selection and latch bolt placement.

Latches and Bolts

The latch and bolt mechanisms are the heart of double entry door hardware's security. The latch is the everyday mechanism that keeps the door closed when not locked. It’s usually spring-loaded and retracts when the handle is turned, allowing the door to open. The quality of the latch mechanism is critical – a poorly made latch may become loose over time, compromising security. Look for latches made from durable materials like solid brass or stainless steel. The latch should fit snugly within its strike plate, ensuring a smooth operation and a secure close.

The bolt, on the other hand, is activated by a separate locking mechanism, often a key cylinder or a deadbolt. It extends further into the door frame than the latch, providing a more substantial barrier to forced entry. The bolt should be securely attached to the handle mechanism and made of durable, strong material to resist attempts at forced entry. The bolt's throw (the distance it extends into the strike plate) should be sufficient to provide adequate security; longer throws are generally better.

For double doors, the latch and bolt mechanisms need to be carefully coordinated. The active door requires a fully functional latch and bolt system. The inactive door might only require a dummy latch mechanism – an aesthetic match to the active door's hardware without the functional parts of the latch or bolt. The alignment and coordination of these mechanisms on double doors are critical for proper function and security, often requiring professional installation.

Deadbolt

A deadbolt is an additional security measure often used in conjunction with the primary latch mechanism. It provides a higher level of security due to its stronger bolt and more robust locking mechanism. Deadbolts are typically keyed, requiring a key to operate, thus offering superior protection against unauthorized entry. The deadbolt should be installed at a height that is difficult to reach by someone attempting forced entry, often around 48 inches from the floor.

The quality of the deadbolt's cylinder is paramount. High-quality cylinders offer superior resistance to picking and bumping, techniques often used in forced entry attempts. Consider deadbolts with features like anti-pick pins and hardened steel construction. The deadbolt should also be securely fastened to the door, using long screws that penetrate deep into the door jamb for maximum security.

For double doors, the deadbolt is usually installed on the active door only. Placing a deadbolt on the inactive door is less effective, as it would only secure that door, leaving the active door vulnerable. However, some security-conscious homeowners might install a separate keyed lock on both doors for increased protection. Careful coordination with the door's construction and other hardware is needed to ensure proper installation and operation.

Strike Plates and Door Jambs

The strike plate is the metal plate mounted on the door jamb that receives the latch bolt and deadbolt. It’s a seemingly insignificant part, but its quality is critical for security and longevity. A weak or poorly installed strike plate can easily be compromised during forced entry. Look for strike plates made of sturdy steel with reinforcement screws that secure it deeply into the door jamb. The strike plate should be properly aligned with the latch bolt and deadbolt to ensure smooth operation.

The door jamb itself also plays a vital role in the overall security. It needs to be strong enough to withstand the force of a potential break-in. The strike plate should be secured to a solid and well-supported part of the jamb for optimal effectiveness. Reinforcing the door jamb with additional screws or using a wider strike plate can further increase security.

For double doors, the installation of strike plates requires precision. The strike plates need to be accurately aligned with the latch and deadbolt mechanisms on both doors. Any misalignment can lead to operational problems and reduced security. Professional installation is often recommended for double doors to ensure proper alignment and functionality.

Hinges

While often overlooked, the hinges are critical components of double entry door hardware. They need to be strong and durable enough to support the weight of the door and withstand frequent use. Heavy-duty hinges made of strong materials such as steel are generally recommended for double doors, which are heavier and require more support than single doors. The hinges should also be securely screwed into both the door and the door jamb.

The number and placement of hinges are essential factors for stability. Double doors often require more hinges than single doors to maintain proper alignment and prevent sagging or binding. Consult with a professional or refer to door manufacturer guidelines for the optimal number and placement of hinges for your specific door size and weight.

The quality of hinges significantly impacts the smooth operation of the doors. Well-lubricated hinges ensure that the doors open and close effortlessly, reducing wear and tear on both the hinges and the door itself. Regular lubrication is recommended for maintaining smooth operation and extending the life of the hinges.