Knudsen Dørfabrikk AS

What Knudsen Dørfabrikk AS does

Knudsen Dørfabrikk AS is a Norwegian interior door manufacturer founded in 1946 and headquartered in Skånevik, Etne Municipality (Vestland county). The company designs, produces, and sells made-to-order interior doors for both residential buildings (apartments, houses, cabins) and commercial/public buildings (offices, schools, hospitals, sports halls, cultural centers, institutions). Its core technology is custom door manufacturing covering solid core, acoustic (25-37 dB sound reduction), fire-rated EI30, x-ray, swing, and climate door variants, with surface options in paint, wood veneer (oak, ash, birch, beech, pine, cherry, maple, walnut, gaboon, limba, sapelli), and high-pressure laminate. Customers configure doors via an online configurator ('Dørbygger') that feeds into a quote-based, made-to-order production process.

The business is a third-generation family-owned private limited company; Roar Knudsen (CEO, 75% owner) and Stig Knudsen (Production Manager, 25% owner) maintain active operational roles alongside a small management team covering quotations, orders, HR, quality/procurement, and technical/operations. There is no external institutional investment or funding history disclosed. Products are sold directly to private consumers (100% upfront payment), through building companies and contractors, and through building material retail stores, distributing nationwide across Norway under the 'Knudsen Dørfabrikk' brand from a single rural manufacturing site.

Certification and sustainability credentials are central to commercial positioning: SINTEF-certified fire door EI30, published Environmental Product Declaration through EPD-Norge, BREEAM documentation support, and Miljøfyrtårn (Eco-Lighthouse) certification achieved in January 2024. Key supply-chain partners include Formica (primary laminate supplier) and Osmo (surface treatment supplier). The firm was named 'Company of the Year' in the Norwegian woodworking industry by Treindustrien in April 2024, reflecting its specialist positioning as one of very few remaining dedicated interior door manufacturers in Norway, following a strategic decision in the mid-1970s to exit furniture, window, and stair production in favor of exclusive focus on interior doors.

Name

Knudsen Dørfabrikk AS

Legal name

Knudsen Dørfabrikk AS

Website

https://xn--drfabrikk-l8a.no

Company type

Private

Founded year

1946

Operating status

Operating

Headcount range

1–10 employees

Short description

Knudsen Dørfabrikk AS is a Norwegian family-owned interior door manufacturer (founded 1946) that designs, produces, and delivers customized made-to-order doors—including acoustic, fire, and x-ray variants—for residential, commercial, and public buildings across Norway.

Ownership category

akta.pro rank

Product category

Interior Door Manufacturing

NAICS

Wood Window and Door Manufacturing (321911), Custom Architectural Woodwork and Millwork Manufacturing (337212)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442), Miscellaneous Furniture & Fixtures (2590)

akta.pro primary industry

Interior Doors (IMADAIAB)

akta.pro secondary industry

Interior Door Replacement (Slab/Prehung) (HSAPAJAC)

Keywords

• Interior door manufacturing
• Custom wood doors
• Acoustic fire doors
• Commercial door supplier
• Norwegian door fabricator

Headquarters

HQ city

Skånevik

HQ country

Norway

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Interior Door Sales: One-time sale of customized interior doors. Customers configure doors to specifications and receive quotes. Production is made-to-order based on customer requirements.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

Knudsen Dørfabrikk AS manufactures customized interior doors for residential, commercial, and public buildings in Norway. The portfolio is split into residential doors (painted, wood-veneer, sliding, and extra-tall doors) and specialized commercial doors (solid core, acoustic 25–37dB, SINTEF-certified fire-rated EI30, x-ray, swing, and climate doors). Production is made-to-order, with customers configuring specifications via the online Dørbygger tool and receiving quote-based pricing.

Product overview

Knudsen Dørfabrikk AS is a Norwegian manufacturer of interior doors established in 1946, producing doors for both residential and commercial buildings across Norway. The product portfolio is organized into two main segments: 'Dører til bolighus' (residential doors) and 'Dører til yrkesbygg' (commercial doors). Residential products include malte dører (painted doors) in standard and custom colors, tredører (wood doors) with various wood species and finishes, skyvedører (sliding doors) in pocket, conventional, and surface-mounted variants, and ekstra høye dører (extra tall doors). Commercial products encompass massive dører (solid core doors), lyddører (acoustic doors) with 25-37dB ratings, branndører EI30 (fire doors), røntgendører (X-ray doors), pendeldører (swing doors), and klimadører (climate doors). Surface options include malt (painted), finer (veneer), and laminat (laminate). The company also offers a comprehensive accessories line featuring Randi-Line handles, hinges, locks, and strike plates. Overflatebehandling (surface treatment) services provide UV lacquer, Osmo oil, matte lacquer, and pigmented lacquers for wood doors.

Differentiator

Problem solved

Functional benefit

Products and services

• Massive dører (Solid Core Doors) Solid core interior doors with robust construction suitable for offices, public buildings, and residential projects requiring durable heavy-duty doors.
• Lyddører (Acoustic Doors) Interior doors with acoustic insulation properties rated from 25dB to 37dB sound reduction, designed for offices, meeting rooms, and spaces requiring noise control.
• Branndører EI30 (Fire Doors EI30) Fire-rated interior doors certified to EI30 standard by SINTEF, providing 30 minutes of fire resistance protection for commercial and public buildings.
• Røntgendører (X-Ray Doors) Specialized interior doors with radiation shielding properties designed for dental offices and veterinary clinics.
• Pendeldører (Swing Doors) Double-acting swing doors designed for kitchens and canteens, allowing passage in both directions.
• Klimadører (Climate Doors) Doors designed for climate control applications in various building types.
• Laminatdører (Laminate Doors) Interior doors with durable high-pressure laminate surface featuring ABS plastic edge strips for extra durability, using Formica laminate (white F2255, black F2253, grey tones F2297, F7837). Designed for schools, care centers, hospitals, sports facilities, kindergartens, and office buildings.
• Tredører (Wood Doors) Interior doors with wood veneer surfaces available in multiple wood species (oak, ash, birch, beech, pine, cherry, maple, walnut, gaboon, limba, sapelli) and various finishes including Osmo oil, UV lacquer, matte lacquer, and pigmented lacquers.
• Malte dører (Painted Doors) Interior doors with smooth painted finish. Standard white is 'bomull' (cotton) in NCS S 0502-Y; custom colors available with NCS color codes.
• Skyvedører (Sliding Doors) Space-saving sliding doors available in multiple variants: pocket doors built into walls (list-free option), conventional sliding door frames with architraves, and surface-mounted sliding doors.
• Ekstra høye dører (Extra Tall Doors) Custom-sized tall interior doors for projects requiring elevated door heights.

Quantifiable outcome

• Energy consumption reduced from 361,000 kW (2021) to 320,100 kW (2023) despite increased production
• +1 more outcomes

Named customers5 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered minor and core.

• Sparringspartneren ASminorImplementation/ SI/ Consulting Partner · 11 January 2024Consulting partner that supported Knudsen Dørfabrikk in obtaining Miljøfyrtårn (Eco-Lighthouse) environmental certification.
• FormicacoreTechnology or IntegrationPrimary laminate supplier for door surfaces. Formica is the leading manufacturer in Norway, providing high-pressure laminate for durable door surfaces in various colors and decors including white (F2255), black (F2253), and grey tones (F2297, F7837).
• OsmocoreTechnology or IntegrationSurface treatment products supplier for wood-finished doors. Provides hardwax oils including clear hardwax oil 3062, pigmented hardwax oil, and decor wax for treating door surfaces.
• SINTEF CertificationcoreTechnology or IntegrationProvides certification for fire doors EI30, ensuring compliance with fire safety standards for commercial building applications.
• NordvestvinduetminorChannel Partner/ Reseller/ DistributorWindow and exterior door manufacturer that also sells Knudsen's products, serving as a distribution channel in certain markets.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Others

• Optimera: Norway's largest building materials distributor and part of Saint-Gobain. Indirect peer through its role as a distribution channel that competing/customized door brands can access to reach Norwegian contractors.
• Maxbo: Norwegian building materials retailer with nationwide pro-center and consumer channels. Comparable as a downstream channel through which competing interior door brands reach Norwegian builders and homeowners.
• Byggmakker: Norwegian building materials retailer chain. Comparable as a downstream channel serving both DIY consumers and professional builders purchasing interior doors.

Broad incumbents

• NorDan: Norwegian/Scandinavian manufacturer of windows and doors, including specialized performance doors. Comparable in serving the Norwegian construction market with certified products, though broader portfolio and larger scale.
• Jeld-Wen: Global door and window manufacturer with a major Scandinavian presence (Swedoor). Comparable in interior door manufacturing, but at vastly larger scale and broader product portfolio.
• Masonite: One of the world's largest door manufacturers with broad interior door lines. Comparable in product category, though geographically focused on North America and serving mass-market scale.

Direct peers

• Swedoor (Jeld-Wen): Leading Scandinavian interior door manufacturer (part of Jeld-Wen), offering both residential and commercial door ranges distributed nationally in Norway. Directly comparable product mix and target customer base.
• Gilje: Norwegian manufacturer of windows and interior doors focused on quality and design. Comparable niche producer serving premium residential and commercial projects in Norway.
• Nordvestvinduet: Norwegian window and exterior door manufacturer that also distributes Knudsen's interior doors. Comparable Norwegian manufacturer-distributor in the building envelope category.
• Dallmann: Danish manufacturer of custom interior doors and millwork for residential and commercial use. Comparable in craftsmanship-led custom interior door production across Nordic markets.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/knudsendoor
• LinkedInlinkedin.com/company/knudsen-d%C3%B8rfabrikk

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 Knudsen Dørfabrikk AS