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  • [Industry information/ Trend] Complete Door Closer Size Guide for Commercial and Residential Use
    You need the correct door closer size for your door to ensure safety and smooth operation. Choosing the right size depends on your door’s width and weight, aswell as whether it’s for commercial or residential use. It’s important to consider regulations such as ADA opening force requirements and ANSI
    2025-12-28
  • [American Standard] UL 10C Fire Test Explained How Door Hardware Must Perform
    UL 10C Fire Test Explained: How Door Hardware Must Perform in Fire-Rated AssembliesIntroduction: Why UL 10C Matters for Fire Door HardwareIn fire-rated door assemblies, door hardware is not an accessory — it is a life-safety component. Hinges, locks, closers, and exit devices must continue to functi
    2025-12-15
  • [Metal Door & Hardware Information] How to Choose Heavy-Duty Hardware for New Metal Doors
    Order heavy-duty hardware for new metal door installations by selecting products that adhere to safety regulations. You need certified door hardware to ensure your building's security and maintain the strength of your door over time. D&D Hardware offers options specifically designed for metal doors,
    2025-12-11
  • [Guide to choosing door hardware] How to Choose the Best Hinge for Heavy Doors
    You want the best hinge for heavy doors, but your choice depends on the door’s weight, what it’s made of, and how often people use it. Picking the right hinge means your doors stay safe, last longer, and meet building standards. If you use the wrong hinge, you could face costly repairs and endless m
    2025-12-11
  • [Fire Rated Door & Hardware Info] What Is Fire Door Hardware? The Complete Beginner’s Guide
    Fire safety stands as a paramount concern in any type of building, be it residential, commercial, educational, or industrial. Among the array of fire protection systems, fire doors are of crucial importance, as they significantly slow down the dissemination of flames and smoke, safeguard escape rout
    2025-12-11
  • [Guide to choosing door hardware] UL Mortise Door Locks Explained: Types, Functions, and How to Choose
    A mortise lock is one of the oldest, strongest, and most reliable locking mechanisms used in modern architecture. Its structure is embedded inside a rectangular pocket cut into the door edge—known as the mortise—which provides deeper installation, thicker materials, and stronger mechanical performan
    2025-12-08
  • [Product Information] How Many Types of Door Closers ?
    A door closer is a mechanical device designed to automatically close a door after it has been opened. It ensures safe, smooth, and controlled door movement without relying on the user to shut the door manually. Door closers are essential components in modern residential, commercial, and industrial b
    2025-12-02
  • [American Standard] The Difference Between UL10C and UL10B Fire Tests?
    The core distinctions between UL10C and UL10B fire resistance testing lie in the test environment, sealing requirements, scope of application, and certification complexity, as detailed below:1. Test Environment: Atmospheric Pressure vs Positive PressureUL10B: Conducted under atmospheric pressure fir
    2025-11-18
  • [Product Information] What Is A Mortise Lock? Complete Guide To Types, Features, And Applications
    What Is a Euro Mortise Lock?A Euro mortise lock is a type of mortise lock specifically designed to be used with a European-standard lock cylinder, commonly known as the Euro profile cylinder (or EN1303 cylinder). It is installed by cutting a pocket—called a mortise—into the edge of the door, allowin
    2025-11-13
  • [American Standard] What is UL 305 Standard of Panic Hardware?
    What is UL 305 Standard?UL 305 is a standard established by Underwriters Laboratories, specifically concerning panic hardware. This standard outlines the safety and performance criteria for panic exit devices that are installed on emergency exit doors. Its primary objective is to guarantee that thes
    2025-11-10
  • [Industry information/ Trend] Top 12 Commercial Door Hardware Manufacturers for Distributors
    Are you searching for the best commercial door hardware brands? Here are 12 top manufacturers that distributors should know. These include D&D Hardware, Assa Abloy, Allegion, Dormakaba, Baldwin Hardware, Emtek, Sargent Manufacturing, Yale Commercial, Corbin Russwin, Adams Rite, General Lock, and Gra
    2025-10-17
  • [Do a better business with China] Meet D&D Hardware at Big 5 Global Dubai 2025
    Explore CE- and UL-certified solutions for metal, wooden, and fire-rated doors. Save the dates: November 24–27, 2025. Visit us at ARENA – F239, Dubai World Trade Centre.
    2025-10-10
  • [Fire Rated Door & Hardware Info] Why CE & UL Certified Interior Door Hinges Are Essential for Safety And Quality?
    In architectural hardware procurement, door hinges are often considered a minor component. However, industry experts and professional buyers understand that hinges are one of the core components of a door, directly impacting its service life, safety performance, and overall quality. Especially for i
    2025-09-29
  • [Guide to choosing door hardware] How To Select The Right Door Hinge
    Selecting the appropriate door hinge is crucial for ensuring seamless door functionality, extended durability, and adherence to building regulations. Whether for residential or commercial use, the optimal choice hinges (no pun intended) on several critical factors: door type, weight, size, usage fre
    2025-09-22
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