Key Takeaway: For commercial and fire-rated buildings, door hardware certification is not an optional quality label — it is a strict regulatory and engineering requirement. Installing non-compliant hardware on fire-rated metal doors can lead to project rejection, failed safety inspections, and sever

D&D Hardware is excited to announce our participation in the 139th Canton Fair, which will be held from April 15 to 19, 2026 in Guangzhou, China. We sincerely invite customers, partners, and industry professionals from around the world to visit us.

Fire-rated door hardware certifications and standards help keep your building safe in a fire. You need these certifications to follow the rules. If you pick products from a trusted fire rated door hardware manufacturer, your doors can stop fire for the right amount of time. Certified fire-rated hard

Imagine you run a busy office building. You know everyone’s safety depends on the doors. Doors must work right during an emergency. Certified fire rated door hardware stops fire and smoke from spreading. It makes sure doors close and latch the right way. This hardware must fit your building’s type a

Here are the top 10 suppliers for architectural door hardware in 2026:D&D HardwareAssa AbloyAllegionBaldwinDorma (dormakaba)EmtekHafeleFormaniCopper Creek HardwareBohle & C.R. LaurencePicking the right door hardware supplier helps you get good security and long-lasting use. Certified products make y

Fire Rated Door Hardware: CE vs UL CertificationIn fire-rated door assemblies, door hardware compliance is not optional—it is a legal, safety, and liability requirement. Using non-certified hardware on a fire-rated door can invalidate the entire fire rating, exposing projects to inspection failure,

When you pick fire rated door hardware for multi-family units, choose products that are certified. Look for safety features like self-closing and positive latching. These features help keep doors safe in emergencies. Pick strong materials that do not rust or wear out fast. Make sure the hardware fit

Introduction: Cycle Testing Is a Measure of Real Service LifeIn professional door hardware specification, cycle testing is one of the most misunderstood performance indicators. While many products are labeled “heavy duty,” only standardized cycle testing can objectively demonstrate how long hardware

Introduction: Why Fire Test Standards Are Not InterchangeableFire-rated door assemblies are regulated by different fire test philosophies in Europe and North America. While both aim to protect life and property, EN 1634-1 and UL 10C are not equivalent standards and cannot be used interchangeably.For

When you pick a fire door handle manufacturer, you want to keep safety and quality first. Here are the top features you should check.