Won-Door
Won-Door Corporation, founded 1962 and headquartered in Salt Lake City, manufactures horizontal-sliding accordion fire, security, and acoustic door systems for commercial and institutional buildings, serving education, healthcare, commercial, multi-family residential, and government verticals across six continents.
- Company typePrivate
- Founded1962
- HeadquartersSalt Lake City, United States
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What Won-Door does
Won-Door Corporation, founded in 1962 and headquartered in Salt Lake City, Utah, manufactures horizontal-sliding accordion-style fire, security, and acoustic door systems for commercial and institutional buildings. Its core technology is a patented horizontal-sliding accordion folding door that stores in concealed pockets when open and deploys within seconds to close fire or security openings, with span capabilities exceeding 200 feet wide and 35 feet tall. The product portfolio includes the FireGuard family (FireGuard up to 180-minute fire rating, FireGuard Slim for narrow corridors, and FireGuard Moveable FireWall as the only ASTM E119-rated accordion folding door), SteelGuard steel security doors capable of 7-second facility lockdown, DuraSound sound-rated partitions with STC 48 rating, and DSI smoke and fire curtain products added through a 2025 partnership. Products carry extensive certifications including UL 10B/10C, UL 864, UL 263, FM Approvals, ICC-ES ESR-1394, and international listings across the UK, Australia, China, Singapore, and Canada.
The company sells primarily through an enterprise specification-driven model, targeting architects and specifiers who embed Won-Door products into building designs during the architectural phase, supported by a proprietary iSpecifyIt interactive specification tool, BIMobject integration, AIA-approved continuing education courses, and a dedicated regional sales team. Pricing is quote-based and not publicly disclosed. Revenue derives from one-time product sales of engineered-to-order door systems, with a service and support stream for existing installations. The company operates as a subsidiary of Horton Pedestrian Access Solutions (HPAS), a division of Overhead Door Corporation.
Won-Door serves five primary verticals: Education (K-12 and universities), Healthcare (hospitals), Commercial (offices, retail, casinos, hospitality), Multi-Family Residential (apartments, hotels), and Government (federal, state, municipal, military). Notable installed bases include The Pentagon (credited with saving lives during September 11), MGM Grand Casinos, Sandy Hook Elementary, Children's Hospital of Philadelphia, King Abdulaziz Center (Ithra), and the TWA Hotel at JFK. Products are installed in buildings across six continents, with international certifications enabling specification in major non-US markets.
Won-Door firmographics
Firmographics- Name
- Won-Door
- Legal name
- Won-Door Corporation
- Website
- https://wondoor.com
- Company type
- Private
- Founded year
- 1962
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Won-Door Corporation, founded 1962 and headquartered in Salt Lake City, manufactures horizontal-sliding accordion fire, security, and acoustic door systems for commercial and institutional buildings, serving education, healthcare, commercial, multi-family residential, and government verticals across six continents.
- Ownership category
- akta.pro rank
Won-Door industry classification
Industry- Product category
- Fire-Rated Door Systems
- NAICS
- Metal Window and Door Manufacturing (332321)
- SIC
- Metal Doors, Sash, Frames, Moldings & Trim (3442)
- akta.pro primary industry
- Commercial & Industrial Doors (Sectional, High-Speed, Fire, Security) (IMADAIAF)
- akta.pro secondary industry
- Architectural Hardware & Door Controls (Hinges, Locks, Closers, Panic Devices) (IMADAIAI)
Keywords
Where Won-Door is headquartered
LocationHeadquarters
- HQ city
- Salt Lake City
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Won-Door business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Fire-Rated Door Systems Sales: Primary revenue from sale of horizontal sliding fire-rated accordion door systems including FireGuard, FireGuard Slim, Moveable FireWall, and SteelGuard products. Products are sold to architects, contractors, and building owners for new construction and retrofit applications.
- Security Door Systems Sales: Sale of SteelGuard steel accordion security doors with optional fire ratings. Revenue from security-focused products used for access control and rapid lockdown applications.
- Sound-Rated Partition Systems: DuraSound accordion folding sound-rated partitions providing space division with STC 48 ratings for commercial, educational, and multi-family residential applications.
- Smoke & Fire Curtain Systems: DSI-branded smoke and fire curtain products (DSI 600, DSI-C1HR, DSI-A4HR, etc.) for elevator smoke containment and fire barrier applications.
- Service & Support: Service and support services including repair, maintenance, and installation assistance for existing door installations.
Go-to-market motion3 records
Distribution channels4 records
Marketing channels9 records
Won-Door product offering
Product offeringCore offering
Won-Door Corporation manufactures and sells horizontal sliding, accordion-style fire-rated, security, and sound-rated door systems for commercial and institutional buildings. Products include the FireGuard family (fire-rated doors up to 180 minutes), SteelGuard (security doors with 7-second lockdown), DuraSound (STC 48 sound partitions), and DSI smoke/fire curtains. Doors are sold directly to architects, contractors, and building owners through an enterprise sales team and specification tools, with installations across six continents.
Product overview
Won-Door Corporation is a manufacturer of horizontal sliding fire and security door systems, offering accordion-style folding doors for commercial and institutional applications. The product portfolio centers on fire-rated doors (FireGuard™ up to 180 minutes, FireGuard™ Slim, and FireGuard™ Moveable FireWall), steel security doors (SteelGuard™), and sound-rated partitions (DuraSound™). The company also offers DSI smoke and fire curtains through a partnership. Design tools including iSpecifyIt® for specification and BIMobject integration support the product lineup. Won-Door serves industries including education, healthcare, commercial, multi-family residential, and government, with products installed in buildings across six continents.
Differentiator
Problem solved
Functional benefit
Brands
- Won-Door FireGuard™: Horizontal sliding fire-rated accordion door systems, the gold standard in fire protection, available up to 180 minutes fire rating.
- Won-Door FireGuard™ Slim
- Won-Door FireGuard™ Moveable FireWall
- Won-Door SteelGuard™
- Won-Door DuraSound™
- DSI (Door Systems Inc.)
Products and services
- Won-Door FireGuard™ The original fire-rated, horizontal-sliding accordion door system providing invisible fire protection with fire ratings up to 180 minutes. Available in single and bi-parting configurations with narrow or flat leadpost options, and straight or curved track configurations spanning over 200 feet wide and 35+ feet tall. Designed for architects, contractors, and building owners specifying fire-rated opening protectives in commercial and institutional buildings.
- Won-Door FireGuard™ Slim Fire-rated accordion folding door designed for narrow corridor and small opening applications. Features a compact 14-inch stack depth, available up to 9 feet width and 7 or 8 feet heights, with installed cost similar to swing doors. For corridor separation, area separation, and elevator lobby applications in buildings with limited space.
- Won-Door FireGuard™ Moveable FireWall The only rated accordion folding door capable of spanning large openings that require ASTM E119 compliance. Protects fire barrier openings up to 40 feet wide and 15 feet high (straight) or 30 feet wide and 12 feet high (curved), rated for 60 or 120 minutes. Not limited to the 156 sq. ft. or 25% of rated wall length restriction. For architects and building owners specifying large fire barrier penetrations.
- Won-Door SteelGuard™ Horizontal-sliding, steel accordion security door providing physical and visual barrier to unwanted intrusion. Capable of locking down facilities in 7 seconds. Available with fire ratings up to 180 minutes (SteelGuard + Fire) and narrow or flat leadpost configurations. For schools, government buildings, healthcare facilities, and commercial properties requiring rapid lockdown and access control.
- Won-Door DuraSound™ Accordion-folding, sound-rated partitions providing STC 48 sound attenuation (lab test) and NIC rating of 30 (field test). Features dual-wall corrugated steel panels, available in manual (for heights under 15 feet) or motorized (for heights up to 28 feet) configurations with straight or curved track options. No floor track to clean or maintain. For commercial, educational, and multi-family residential applications requiring flexible space utilization with acoustic separation.
- DSI Smoke & Fire Curtains Smoke and fire curtain solutions for elevator smoke containment and opening protectives, distributed through Won-Door via partnership with Door Systems Inc. Includes UL 10D and UL 10B rated products (DSI 600, DSI-C1HR, DSI-C3HR, DSI-A4HR, DSI-H3HR, DSI-D1HR, DSI-S1HR, DSI-M10D, DSI-HS10B, DSI-HHS10B, DSI-HSM10B, DSI-FW119). For elevator lobby smoke containment and fire barrier applications in commercial and institutional buildings.
- Won-Door FireGuard Corner Bi-Part Won-Door FireGuard Corner Bi-Part door designed for stairway/escalator landings when radial configurations are not feasible. Capable of 10-foot heights and 20-foot widths on each leaf, fire-rated up to 90 minutes. Features plywood header assembly for tight seal. For architects specifying fire-rated opening protectives at corner landings.
- Won-Door Service & Support Service and support services including repair, maintenance, and installation assistance for existing Won-Door installations. For facility managers and building owners maintaining operational doors.
Quantifiable outcome
- Can span openings over 200 feet wide and 35+ feet tall
- +5 more outcomes
Companies that use Won-Door
Customer profileNamed customers19 records
Segments6 records
Ideal customer profiles5 records
Won-Door technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature9 records
Won-Door partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Door Systems Inc.coreWon-Door announced partnership with Door Systems Inc. (DSI) to provide fire and smoke curtain solutions. DSI products (DSI 600, DSI-C1HR, DSI-A4HR, DSI-H3HR, DSI-D1HR, DSI-S1HR, DSI-M10D, DSI-HS10B, DSI-HHS10B, DSI-HSM10B, DSI-FW119) are now featured on Won-Door website, expanding product portfolio to include smoke containment curtains, hose stream rated curtains, and deployable fabric fire walls.
Scale indicators5 records
Recent moves5 records
Expansion highlights5 records
Won-Door competitors and assessment
Company assessmentDirect peers
- Clopay Corporation: Clopay manufactures commercial sectional and rolling steel fire doors, including insulated and fire-rated coiling doors, for commercial and industrial facilities. Direct competitor in fire-rated opening protectives and a relevant peer for commercial construction specifications.
- Janus International Group: Janus International manufactures commercial sectional doors, rolling steel doors, and specialty door products for self-storage, commercial, and industrial facilities. Comparable in scale and channel as a specialty commercial door manufacturer serving construction-driven demand.
- C.H.I. Overhead Doors: C.H.I. Overhead Doors manufactures commercial and industrial overhead sectional doors, rolling steel doors, and fire-rated door products. Comparable as a commercial/industrial door manufacturer competing in similar specifier-driven channels.
- Modernfold (ALACO): Modernfold (owned by ALACO) manufactures operable and acoustic partitions and folding door systems for space division in commercial, educational, and healthcare facilities. Directly comparable to Won-Door's DuraSound sound-rated partitions and accordion-folding space-separation products.
- Cornell Iron Works: Cornell Iron Works manufactures rolling steel fire doors, fire-rated coiling doors, and counter fire doors for commercial and industrial openings. Directly comparable as a competing fire-rated opening protective for corridors, elevator lobbies, and area separation in commercial and institutional buildings.
- Smoke Guard (Assa Abloy): Smoke Guard, now part of Assa Abloy, manufactures fire and smoke curtains and deployable fire walls used for elevator smoke containment and opening protectives. Directly comparable to Won-Door's DSI partnership portfolio and adjacent to its FireGuard line in spec-driven smoke/fire separation applications.
Emerging players
- Schweiss Doors: Schweiss Doors manufactures custom hydraulic and bi-fold doors for large architectural openings, often with specialty applications. Partially comparable for large-span, custom architectural opening solutions, though focused on exterior hangar and industrial doors.
Broad incumbents
- Assa Abloy: Assa Abloy is a global leader in access solutions, encompassing locks, electronic access control, automatic doors, and fire/smoke curtains. Overlaps with Won-Door through access control integration, fire/smoke separation, and pedestrian access product lines under the HPAS-adjacent market.
- Raynor (Overhead Door Corporation sister brand): Raynor is a sister brand under Overhead Door Corporation, manufacturing commercial and residential garage and overhead doors. Comparable as a peer in the parent company's broader product portfolio addressing commercial construction channels.
- Hörmann: Hörmann is one of Europe's largest manufacturers of doors and operators for residential, commercial, and industrial applications, including fire-rated and acoustic doorsets. Comparable as a broad incumbent with overlapping fire, acoustic, and security door categories and global distribution.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Won-Door social profiles
Digital presenceWon-Door compliance and trust
Trust signalCompliance17 records
Won-Door financial estimates
Financial estimateRevenue estimate
Valuation estimate
Won-Door leadership team
Management profileNumber of profiles
Won-Door funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Won-Door M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Won-Door
What does Won-Door do?
Won-Door Corporation manufactures and sells horizontal sliding, accordion-style fire-rated, security, and sound-rated door systems for commercial and institutional buildings. Products include the FireGuard family (fire-rated doors up to 180 minutes), SteelGuard (security doors with 7-second lockdown), DuraSound (STC 48 sound partitions), and DSI smoke/fire curtains. Doors are sold directly to architects, contractors, and building owners through an enterprise sales team and specification tools, with installations across six continents.
Is Won-Door a public or private company?
Won-Door is a private company. It is classified as corporate owned and is currently operating.
When was Won-Door founded?
Won-Door was founded in 1962. It employs 101 to 250 people.
Where is Won-Door based?
Won-Door is headquartered in Salt Lake City, United States, in the North America region.
How does Won-Door make money?
Five revenue lines are on record. Fire-Rated Door Systems Sales are the primary driver. The others are security Door Systems Sales, sound-Rated Partition Systems, smoke & Fire Curtain Systems and service & Support.
Who are Won-Door's main competitors?
Direct peers on record are Clopay Corporation, Janus International Group, C.H.I. Overhead Doors, Modernfold (ALACO), Cornell Iron Works and Smoke Guard (Assa Abloy). Schweiss Doors is listed as an emerging player. Broad incumbents are Assa Abloy, Raynor (Overhead Door Corporation sister brand) and Hörmann.
Does Won-Door have an API?
No public API is recorded for Won-Door.
What industry is Won-Door in?
Won-Door's product category is Fire-Rated Door Systems. Its primary akta.pro industry code is IMADAIAF, Commercial & Industrial Doors (Sectional, High-Speed, Fire, Security), with a secondary code of IMADAIAI, Architectural Hardware & Door Controls (Hinges, Locks, Closers, Panic Devices). Its NAICS code is 332321 and its SIC code is 3442.