When selecting door hardware, there are several requirements to consider:

Function: Determine the function of the door, such as whether it is an entrance, exit, or interior door. This will help determine the type of hardware needed, such as a lockset, deadbolt, or passage set.

Security: Consider the level of security required for the door. For example, exterior doors should have more secure hardware than interior doors. Locks should be tested and rated to ensure they meet the required level of security.

Accessibility: If the door needs to be accessible to people with disabilities, hardware such as door closers, handles, and hinges should be chosen that meet accessibility guidelines.

Durability: The hardware should be able to withstand frequent use and abuse, especially in high-traffic areas. Hardware should be made of high-quality materials that are resistant to wear and tear.

Aesthetics: The hardware should be aesthetically pleasing and complement the overall design of the door and surrounding area. Consider the finish, color, and style of the hardware.

Ease of installation: The hardware should be easy to install and maintain. Consider the complexity of installation, the tools required, and the availability of replacement parts.

Code compliance: Check local building codes to ensure that the selected hardware meets all relevant requirements, such as fire codes, egress requirements, and ADA regulations.