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Frequently Asked Questions

What is LCN?

LCN is an Allegion brand and the benchmark for door closer durability. It is best known for door closers and operators.

What products does LCN make?

LCN's product range includes surface door closers such as the 4040XP, 1460, and 4011, plus automatic operators.

How do I choose the right LCN door closer?

Size the LCN closer to the door's width and weight (closers are graded by size, with many models adjustable across a range), then pick the mounting style (regular arm, top jamb, or parallel arm) that fits the door and frame. For accessibility, interior doors generally must open with no more than 5 lbf of force, so adjustable spring power matters.

Where is LCN hardware typically used?

LCN hardware is specified for high-traffic, high-abuse, and ADA openings.

Is LCN hardware commercial grade and code compliant?

Yes. LCN manufactures to commercial standards and tests its products to the applicable ANSI/BHMA A156.4 for door closers. For most commercial and institutional openings, specify Grade 1 where the product line offers it, and confirm any fire-rating or ADA listings the opening requires.

Can a LCN closer be used on a fire-rated or ADA door?

Yes. LCN closers are available in models listed for fire-rated doors and in low-energy operator versions for barrier-free, ADA-compliant openings. Confirm the specific model's listings and set the closing force to meet the applicable code.

Does National Lock Supply sell genuine LCN products?

Yes. National Lock Supply is a stocking distributor of genuine LCN door closers and operators, with competitive pricing, real-time availability, and expert support to help you specify the right part. Browse the full LCN line or contact us for project quotes and cross-references.