Bommer Is Gone: What the Shutdown of America's Oldest Spring Hinge Manufacturer Means for Your Next Spec

After 145 years in business, Bommer Industries permanently stopped manufacturing spring hinges in 2022 and posted its final closure announcement in August 2025. If your master specs still reference Bommer model numbers, they now call out a product that no longer exists. Here is what happened, which models are most at risk, and how to write specifications that will not strand your next project.

After 145 Years, the Spring Hinge King Is Gone

There are companies that define a product category so completely that their name becomes the category itself. Bommer was that company for commercial spring hinges. Founded in 1876 in Landrum, South Carolina, Bommer spent nearly 150 years making the hinges that most architects, specifiers, and door distributors simply called "spring hinges." The LB4300 series — a single-acting spring hinge available in 4-inch and 4.5-inch sizes — was for decades the default spring hinge specification on commercial projects across North America.

That era is over. The decision to stop manufacturing was made in July 2021. The production lines in Landrum and Gaffney, South Carolina went quiet in summer 2022. The furniture hardware division followed, with an exit announcement in May 2024. In August 2025, Bommer posted a final closure notice at bommer.com, directing remaining customers to two authorized liquidation distributors. The website still shows product pages. None of those products are being made.

This matters to you if you are an architect, a specifier, a facilities manager maintaining a library of master specs, or a contractor who has been ordering Bommer for twenty years without thinking twice about it. The supply chain signal is clear: what you specify today needs to come from somewhere else.

The Timeline: A Phased Wind-Down, Not a Sudden Collapse

What makes the Bommer closure unusual is its low profile. There was no bankruptcy filing, no news coverage of a dramatic shutdown, and no industry-wide announcement that architects and specifiers typically receive when a major product line is discontinued. The wind-down was orderly and quiet — which means many architects are still specifying Bommer products without knowing the manufacturer is gone.

What Bommer Made: The Products Most at Risk

Not all Bommer products carry the same replacement risk. For the most common lines — the LB4300 series single-acting spring hinges — alternative products exist. For several specialty lines, the situation is more serious.

The LB4300 Series: Most Common, Replaceable

The LB4300 series was Bommer's core commercial spring hinge line. Available in 4-inch and 4.5-inch sizes, standard ANSI mortise preparations, and multiple finishes, these were the hinges that appeared on the largest percentage of commercial project specs that called out Bommer by name. The good news: the standard ANSI/BHMA mortise preparation means that products from other manufacturers will drop into the same hinge cutout without modification.

The bad news: a direct spring-hinge-for-spring-hinge replacement still leaves you with a spring hinge — a technology with known limitations. Spring hinges lose tension over time, cannot meet the ADA closing time requirement of 5 seconds from 90 degrees to 12 degrees, and rely on accumulated momentum rather than controlled deceleration to achieve positive latching. On fire-rated openings, that latching risk is a code compliance issue.

Specialty Lines: No Viable Substitute Currently Exists

Several Bommer product families currently have no direct equivalent available in the market:

• 7800 Series (7811HD / 7812HD) — Heavy-duty horizontal spring pivots. No equivalent currently available.
• 7122 / 7112 / 7022 / 7012 — Adjustable tension hinges with specialty configurations. No equivalent currently available.
• 1515 / 1514 — Small 2-inch spring hinges with hold-open function. No equivalent currently available.

Why This Is More Than a Supplier Problem

The disappearance of Bommer is not just a procurement inconvenience. It is a signal about where the commercial spring hinge category is heading — and what that means for specifications written today.

The Spring Hinge Market Is Contracting at the Commercial Level

Broad market reports describe the global spring hinge market as growing — but those numbers include cabinet hinges, furniture hinges, and residential screen door hardware. The commercial architectural spring hinge segment, where Bommer competed, is a small subset of that market, and the competitive landscape tells a different story. Bommer, which was for over a century the most recognized name in commercial spring hinges, did not survive. The company was debt-free when it closed — this was not a story of reckless management. It was a story of a market that could no longer sustain a dedicated manufacturer.

Spring Hinges Are Being Replaced by Closer Hinges

The technology shift driving the contraction is straightforward. Spring hinges do one thing: they close a door. They cannot control closing speed, they cannot be adjusted to meet the ADA 5-second closing time requirement, and they rely on spring tension — which degrades over time — to achieve positive latching on fire-rated openings. The result is a device that works adequately at installation and becomes increasingly unreliable over years of service.

Closer hinges — which embed hydraulic or mechanical speed control inside a standard hinge barrel — solve all three problems. They are adjustable. They provide consistent closing force throughout the product's service life. And they achieve positive latching reliably, which is why authorities having jurisdiction on fire-rated openings accept them where spring hinges are frequently rejected. Bommer's exit from the market accelerates what was already a trend: specifiers replacing spring hinges with closer hinges on new projects, and facilities managers upgrading legacy spring hinge installations during renovation cycles.

Who Is Left: The Current Manufacturer Landscape

After Bommer's exit, the commercial spring hinge and closer hinge market has a clearer structure. Here is how the remaining options compare:

For architects specifying new projects, the comparison above points to a clear direction. For renovation projects where a direct spring hinge replacement is required for budget or scope reasons, PBB/Alrex provides standard ANSI mortise-compatible spring hinges that will fit existing preparations. For new construction or projects where long-term reliability, ADA compliance, and fire door performance are priorities, closer hinges eliminate the limitations of spring hinge technology entirely.

What to Put in Your Next Spec

The most important action you can take right now is to stop specifying by brand name and start specifying by performance standard. A spec that says "Bommer LB4300 series, or approved equal" is now a spec that calls out a product from a company that no longer makes it. A spec written to ANSI/BHMA A156.17 Grade 1 performance requirements is manufacturer-neutral and will survive the next market disruption, whatever it turns out to be.

Performance-Based Spec Language

Self-closing hinges shall be ANSI/BHMA A156.17 Grade 1, UL Listed for use in fire-rated assemblies up to 3-hour rating, all-stainless-steel construction, with adjustable closing speed and spring tension. Minimum 1,000,000 cycle rating. Manufacturer: [Waterson model number] or approved equal meeting the above requirements.

This language accomplishes three things. It sets a performance floor that eliminates inferior products. It specifies a manufacturer reference so the contractor has a starting point. And the "or approved equal" language gives procurement flexibility while still protecting the performance requirement.

The A156.17 Standard: What It Covers

ANSI/BHMA A156.17 is the American National Standard for Self-Closing Hinges and Pivots. It covers both spring hinges and closer hinges — any hinge-based device that returns a door to the closed position. The 2025 edition is the first substantive technical update since 2014 (the 2019 edition was a re-affirmation with no technical changes). Key grade requirements:

For any commercial project, Grade 1 is the appropriate specification. For fire-rated openings, Grade 1 with UL listing for the specific fire rating required (up to 3-hour) is mandatory under NFPA 80 Section 6.4.4.

Key Waterson Models for Former Bommer Applications

All K51M series models use the same ANSI standard mortise preparation as Bommer's LB4300 series — 4-inch, 4.5-inch, 5-inch, and 6-inch cutouts are all standard industry dimensions. No additional routing is required for new construction. On renovation projects replacing existing Bommer hinges, the Waterson K51M drops directly into the existing mortise cutout.

The Bigger Shift: From Spring Hinges to Closer Hinges

Bommer's exit from the market is a data point in a longer trend. Spring hinges — which have been used on commercial doors since the 1800s — are a mature technology with known, well-documented limitations. The industry has been moving away from them on commercial applications for years, driven by three converging pressures:

1. Code enforcement getting stricter. Authorities having jurisdiction are increasingly rejecting spring hinges on fire-rated openings because the functional test — does the door latch reliably from every position? — is something spring hinges frequently fail. Closer hinges pass this test because their speed control mechanism ensures consistent latching force regardless of the angle from which the door is released.
2. ADA compliance requirements. Under ADA Section 404.2.8.1, doors with closers must close from 90 degrees to 12 degrees from the latch in a minimum of 5 seconds. Spring hinges cannot meet this requirement because they have no speed control mechanism. Closer hinges are adjustable to meet it precisely. Spring hinges are treated separately under ADA Section 404.2.8.2, which requires closing from 70 degrees in 1.5 seconds minimum — a narrower, harder-to-maintain window.
3. Lifecycle cost of maintenance. Spring hinges require periodic re-tensioning as the spring fatigues. In high-traffic commercial settings, this can mean maintenance interventions every 2 to 5 years. Closer hinges — tested to 1,000,000 cycles under ANSI/BHMA A156.17 Grade 1 — do not require spring readjustment over the product's service life. At 200 door cycles per day, 1,000,000 cycles translates to approximately 13 years of service before the product even approaches its tested limit.

Bommer competed in the spring hinge segment for 145 years and exited because the market could not sustain them. That is not a coincidence. It is a signal about where the technology is headed.

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