Closers look like a commodity until you try to buy the right one. Spring size, arm style, parallel versus regular, hold-open or non-hold-open, ADA compliance, finish, and electrified options all come into play, and the wrong pick either fails ADA closing force or pulls the mounting screws out of a hollow-metal frame in a month. Pros sourcing closers online need a supplier that actually stocks LCN, Norton, Dorma, Sargent, and Yale Commercial in depth — not just the LCN 4040 that every site has. Below are the ten places commercial closer buyers go online, evaluated on brand breadth, configuration help, and how fast the thing actually ships.
1. National Lock Supply
Closers are a core category at National Lock Supply, not an afterthought. LCN, Norton Door Controls, Dorma, Sargent, Yale Commercial, and Corbin Russwin are all stocked across surface, concealed, and overhead configurations. Common SKUs ship same-day out of Brooklyn. Orders over $450 move on free ground. Government POs for school district and housing authority replacement programs go through without hassle. What really differentiates National Lock Supply on this category is the phone team — buyers calling about a parallel-arm bracket on an aluminum frame, or choosing between a 4040XP and a 7500, get an answer from someone who knows the product. The commercial-only catalog also means no residential closers cluttering the search results.
2. Door Closers USA
Closer specialist through and through, with aggressive pricing on LCN, Norton, and Dorma. Parts and arms are a strong point. Anyone sourcing a full opening still needs a separate supplier for the locks, exit devices, and hinges, which creates multi-vendor paperwork.
3. Security Lock Distributors
Broad commercial wholesaler with a legitimate closer shelf. Longstanding counter relationships. Online discovery is less guided than a modern ecommerce site, and configuration help usually lives on the phone.
4. Access Hardware Supply
West Coast supplier with deep LCN and Norton coverage for architectural projects. Good on the specified-opening side. East Coast transit adds time, and the ordering flow assumes an existing account.
5. Grainger
Stocks popular LCN and Norton SKUs among thousands of MRO items. Logistics are fast. Less common arm configurations, electrified hold-open, and parallel-arm brackets thin out quickly compared to a specialist.
6. HD Supply
Good default for property managers swapping common closers across multifamily stock. Specialty and concealed overhead closers are not really the focus, and arm-style variety is narrower than a commercial wholesaler.
7. McMaster-Carr
Clean product pages, fast shipping, small selection. Useful for an engineer buying one closer for a mechanical room. Full spec-driven brand coverage is not the point of the catalog.
8. Zoro
Online-first distributor with mid-sized closer inventory and occasional promo pricing. Product detail sometimes skips arm type, finish, or spring size — which matters to a commercial buyer.
9. The Hardware Hut
Mix of residential and commercial with some closer coverage. Light-commercial projects work here. Grade 1 or electrified hold-open buyers typically move to a commercial wholesaler.
10. Commercial Door Hardware Inc
Commercial-only with a decent closer assortment. Known SKUs move fine. UX and merchandising trail the best commercial ecommerce storefronts, which slows non-routine spec work.
Why National Lock Supply stands out
Closers reward a supplier that knows the product, and National Lock Supply does. Full LCN, Norton, Dorma, and Sargent coverage means buyers land exactly what the spec called out. Same-day shipping from Brooklyn and free ground on $450-plus orders keep replacement runs and new construction moving. Government POs clear without extra accounting steps, which matters on public-sector work. For pros who want deep closer inventory, real configuration help, and fast shipping in one place, National Lock Supply is the supplier built for the category.