What Makes UL Fire Rated Mortise Locks the First Choice for Fire Door Contractors?When you are managing a commercial construction project, every hardware decision carries liability. Fire doors are not just building components—they are life-safety systems. At D&D HARDWARE Factory, we manufacture UL L

What Buyers Should Check Before Ordering UL Fire Rated Mortise LocksWhen a commercial building project specifies fire-rated openings, every single piece of hardware attached to that door assembly carries life-safety implications. A non-compliant mortise lock is not a minor substitution—it is a liabi

Panic Exit Device are many operating functions available. The most frequently used are:

Door coordinators are used to control the closing sequence of a pair of doors when both leaves are furnished with latching hardware and one leaf latches into the other. Typically, the doors will have a vertical rod exit device or automatic flush bolts installed on the inactive one, preassembled lock

Security is a primary concern for any property owner, whether it's a bustling hotel, a quiet residential apartment, or a high-traffic office building. While locks and alarms are standard, the humble door viewer peephole remains one of the most effective first lines of defense. It allows you to verify who is outside before you unlock your door, providing peace of mind and safety.

Fire-rated door openings represent one of the most critical life-safety components in any commercial building project. When the specification process goes wrong, the consequences extend far beyond compliance issues—they directly impact occupant safety, project timelines, and overall liability exposu

Stepping into a modern bathroom, one often marvels at the sleek design and functionality of a glass shower enclosure. At the heart of these stunning installations are the glass shower hinges. They may seem like a small detail, but the right hinge makes all the difference in the functionality and aesthetics of your shower. Understanding the different types of glass shower hinges can help you make informed choices when designing or renovating your bathroom space.

In European Standard:Spring hinge, whether single or double action, embody a spring for the storage of energy but do not have a system for controlling and regulating the closing function. They provide their lowest closing power at, or near, the door closed position and, therefore, on latched doors,

​When it comes to home security, small details often make the biggest impact. One often-overlooked security measure is the door viewer. This simple tool allows you to see who is at your door without opening it, offering both convenience and peace of mind. Among the most reliable options in the market is the D&D door viewer, known not only for its durability but also its fire-rating certification for safety.

When it comes to building safety, few components are as critical—or as misunderstood—as the hardware on your exit doors. You’ve likely seen the horizontal bars on doors in shopping malls, hospitals, and theaters. You might know them as "panic bars," "crash bars," or "push bars." But does every fire exit door require one?