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Frequently Asked Questions

What makes BEST door closers reliable?

BEST manufactures door closers with proven hydraulic mechanisms, adjustable valves for precise control, and durable construction providing consistent performance in commercial applications.

Are BEST door closers suitable for fire doors?

Yes, National Lock Supply stocks fire-rated BEST door closers tested and labeled for fire door assemblies meeting life safety and building code requirements.

Can BEST door closers be adjusted for different door weights?

Yes, BEST door closers feature adjustable spring tension accommodating various door sizes and weights. National Lock Supply can help specify appropriate closer sizes.

Do BEST door closers meet ADA requirements?

Yes, BEST manufactures door closers with adjustable closing forces meeting ADA accessibility requirements for commercial door applications.

What mounting options are available for BEST closers?

National Lock Supply offers BEST door closers in regular arm, top jamb, parallel arm, and overhead concealed mounting configurations for various door and frame types.

Are BEST door closers easy to maintain?

Yes, BEST door closers feature accessible adjustment valves and serviceable components. National Lock Supply provides maintenance guidelines and replacement parts.