Inter Door

What Inter Door does

Inter Door (legal entity: INTERDREX Sp. z o.o.) is a Polish manufacturer of premium customized interior, entrance, and fire-resistant doors, operating from its headquarters and production facility in Bieszkowice near Gdynia within the Trójmiejski Park Krajobrazowy. Founded in 1990 and operating with approximately 200 qualified production workers, the company positions itself as a modern manufactory rather than a mass producer, building each door to individual specifications from a single unit upward. Its core technology is a proprietary solid-interior door construction (pełne wnętrze) based on 100% wood converted into durable MDF, delivering certified performance including acoustic insulation up to 39 dB (Rw), EI30/EI60 fire resistance, RC2/RC3 burglary resistance, and durability tested to 100,000 opening/closing cycles. The product portfolio spans dozens of interior models (e.g., PŁASKIE, ALBA, BARI, CAPSA, CLASSIC, DERBY, FRESA, VITA, LIVORNO, OMIC) in natural veneer, HPL, or RAL/NCS painted finishes; entrance doors (DIAMENT RC3, TOWER RC2, TOWER STRONG); and technical fire-rated doors (ATENA EI30, ETNA EI60, WENUS EI30, TYTAN). Specialty lines include X DOOR gaming doors with integrated LED lighting and a Paprocki Brzozowski fashion-designer capsule.

The company serves three primary customer segments: private homeowners seeking high-aesthetic, customized doors for homes and apartments; developers and investors requiring bulk specification for multi-family residential projects; and commercial/public building operators needing fire-rated, acoustic, and technical doors for hotels, offices, and public institutions. Architects and interior designers are addressed as a specifier channel through the dedicated Strefa Architekta portal. Revenue is generated via one-time unit sales of custom doors; pricing is quote-based and finalized through partner showrooms, with an online configurator (konfigurator.interdoor.pl) providing indicative pricing and lead capture. Distribution is exclusively domestic in Poland, executed through a network of over 100 partner showrooms anchored by BEL-POL (50+ locations) and VOX (40+ locations), complemented by a company-owned flagship INTER DOOR Store in Rzeszów. The firm supports sales with B2B digital infrastructure (ProKlient distributor portal, Architect Zone) and demand generation through trade shows (Architect@Work Warsaw, Monter Show, New York Build) and content marketing.

Name

Inter Door

Legal name

INTERDREX Sp. z o.o.

Website

https://interdoor.pl

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

51–100 employees

Short description

Inter Door is a Polish premium custom door manufacturer producing interior, entrance, and fire-rated doors from wood-based solid construction. It serves private homeowners, developers, and commercial buildings across Poland via 100+ partner showrooms and a company-owned flagship store.

Ownership category

akta.pro rank

Product category

Custom Wooden Door Manufacturing

NAICS

Wood Window and Door Manufacturing (321911)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442)

akta.pro primary industry

Interior Doors (IMADAIAB)

akta.pro secondary industry

Exterior Doors (IMADAIAA)

Keywords

• Custom wooden doors
• Fire-rated doors
• Interior entrance doors
• Sliding door systems
• Anti-burglary doors

Headquarters

HQ city

Bieszkowice

HQ country

Poland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Operations, Personnel, Supply Chain, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Door sales: Inter Door manufactures and sells custom interior doors, entrance doors, and technical/fire doors. Products are sold through partner showrooms across Poland. Pricing is quote-based through the configurator or showroom consultation. Custom non-standard projects start from 1 piece.
2. Technical doors for investments: Fire doors, acoustic doors, and technical doors sold for commercial projects including public buildings, hotels, and multi-family residential developments

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels7 records

Core offering

Inter Door is a Polish manufacturer that designs and produces customized interior wooden doors, anti-burglary apartment entrance doors, and fire-rated technical doors. Products are made-to-order starting from a single unit using a proprietary solid full-interior construction based on wood converted to durable MDF, and are sold exclusively through partner showrooms and one company-owned flagship in Poland.

Product overview

Inter Door is a Polish manufacturer of customized premium interior, entrance, and fire-resistant doors, positioning itself as a 'modern manufactory' rather than a mass producer. The core product portfolio spans three main categories: (1) Interior wooden doors — a broad lineup of dozens of models (PLASKIE/FLAT, ALBA, BARI, CAPRI, CAPSA, CLASSIC, DERBY, FRESA, LUKKA, LOGGIA, VITA, SIENA, etc.) offered in natural veneer, HPL, or RAL/NCS painted finishes, with technical variants including acoustic (up to 37 dB), concealed/hidden frame, reverse rebate, sliding, and ceiling-height (up to 3m) systems; (2) Entrance doors — burglar-resistant apartment entrance doors in three series: DIAMENT (RC3), TOWER (RC2), and TOWER STRONG, all featuring acoustic insulation up to 39 dB; (3) Technical/fire doors — ATENA EI30, ETNA EI60, WENUS EI30, and TYTAN combining fire, acoustic, and anti-burglary ratings. Specialty offerings include X DOOR (gaming doors with LEDs) and the Paprocki Brzozowski fashion collaboration. The portfolio is supported by a proprietary door configurator web tool, a ProKlient B2B distributor portal, and an Architect's Zone with CAD resources. Inter Door operates a flagship showroom in Rzeszów and a nationwide network of partner showrooms.

Differentiator

Problem solved

Functional benefit

Brands

• INTER DOOR Store: Company-owned flagship showroom located at ul. Zygmuntowska 8, Rzeszów, showcasing over 20 door specimens including ceiling-high doors, classic, fire-rated, and entrance models, as well as the Paprocki Brzozowski collection and X DOOR gaming doors.
• X DOOR
• Paprocki Brzozowski for INTER DOOR

Quantifiable outcome

• Acoustic insulation up to 37 dB for interior doors, up to 39 dB for hidden doors in acoustic version
• +2 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Five partnerships are on record, tiered core, flagship and minor.

• BEL-POLcoreChannel Partner/ Reseller/ DistributorMajor distributor network with 50+ showroom locations across Poland including Białystok, Bełchatów, Bielsko-Biała, Choszczno, Gdańsk, Gdynia, Gliwice, Gorzów Wielkopolski, Grudziądz, Jelenia Góra, Katowice, Kielce, Kraków, Lębork, Legnica, Lubin, Lublin, Łódź, Nowa Sól, Opole, Pabianice, Piotrków Trybunalski, Poznań, Świdnica, Szczecin, Toruń, Tychy, Wałbrzych, Warszawa, Wejherowo, Wrocław, Zielona Góra, Olsztyn
• VOX (Salony Drzwi i Podłóg)coreChannel Partner/ Reseller/ DistributorMajor retail chain with 40+ showrooms across Poland offering doors and floors. Locations include Białystok, Bydgoszcz, Chorzów, Częstochowa, Elbląg, Gdańsk, Gdynia, Gliwice, Inowrocław, Katowice, Olsztyn, Świecie, Toruń, Łódź, Poznań, Radom, Rzeszów, Rumia, Szczecin, Tczew, Kraków, Bielsko-Biała, Niepołomice, Nowy Sącz
• STALREMcoreChannel Partner/ Reseller/ DistributorDistributor with showrooms in Bydgoszcz, Gdańsk, Kraków, Łódź, and Poznań specializing in doors and floors
• Paprocki BrzozowskiflagshipStrategic or Co-development PartnerPolish fashion designers who created an exclusive collection of 5 unique door models inspired by fashion for INTER DOOR. The collection is available at INTER DOOR Store in Rzeszów and online at moda.interdoor.pl
• Studio PolitowiczminorStrategic or Co-development PartnerDesign studio that collaborated on the PŁASKIE collection featuring Finnish birch veneer stained in cornflower blue with burgundy accents

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Porta KMI Poland: One of the largest Polish manufacturers of interior, entrance, and technical doors. Competes head-to-head with Inter Door across virtually the same product categories (wooden interior, fire-rated, anti-burglary entrance) and channels, with overlapping B2B and showroom distribution.
• Pol-Skone: Polish door manufacturer with a broad interior, entrance, and fire-rated door portfolio, including wooden, glazed, and sliding systems. Closely comparable in product breadth, customization model, and target customer (private homeowners, developers, public-sector projects).
• DRE (DRE Sp. z o.o.): Polish manufacturer of interior doors, entrance doors, and technical doors with nationwide distribution. Overlaps directly with Inter Door in residential and commercial projects, including fire-rated and acoustic offerings.
• Wiśniowski: Polish/European manufacturer of doors, gates, windows, and fencing for residential and commercial use. Comparable in custom-build philosophy, premium positioning, and target segments (homeowners, developers, architects).

Broad incumbents

• Hörmann: Large European incumbent in doors, frames, and operators, with strong presence in fire-rated, industrial, and entrance doors. Competes with Inter Door in commercial/public projects and sets the technical/quality benchmark for technical doors.
• Jeld-Wen: Global manufacturer of interior and exterior doors, windows, and related building products. Comparable in scale and breadth, particularly relevant for benchmarking international expansion and standardized product economics.
• Masonite International: One of the world's largest door manufacturers, focused on interior and entry doors for residential and commercial applications. Useful benchmark for global production economics and B2B/architect channel development.
• Dierre: Italian/European manufacturer of security, fire-rated, and interior doors. Comparable in custom interior, entrance, and technical door ranges, and in serving design-led European customers.

Others

• VOX (Salony Drzwi i Podłóg): Major Polish retail chain (40+ showrooms) that is both a critical distribution partner and a competitor-adjacent brand. The relationship is dual: VOX distributes Inter Door doors but also sells competing brands, making it a key ecosystem player.
• dormakaba: Global provider of door hardware, access solutions, and related entrance systems. Comparable at the commercial/technical door overlap and useful for understanding how integrated door-and-hardware solutions are sold into B2B/architect channels.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/interdoor
• Instagraminstagram.com/interdoor_official
• LinkedInlinkedin.com/company/inter-door
• TikToktiktok.com/@interdoor_official
• Pinterestpinterest.com/interdoor_official
• YouTubeyoutube.com/@inter-door

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Inter Door