Doors and windows for manufacturers of garden houses and saunas



You have a choice of different door variants - single or double leaf. Full or with glazing (including glazing with crossbars).


You can choose from different variants of windows - single or double sash. Standard, with unusual shapes, with muntins or painted in any color (such as ivory, gray or black).

Quality and sustainability

Wood is the essence of our products, therefore we put emphasis on its strength and visual quality while maintaing environmental responsibility. We source timber only from sustainable forestry and we have all the necessary chain-of-custody certification you may require, confirmed by regular independent audits.

Stiles and rails of our products are laminated from several wood pieces to prevent warping.

Scandinavian spruce

For our production we use slow-grown spruce from Northern Scandinavia.


Douglas wood

We use also beautifully red and naturally resilient to fungi douglas wood (Oregon pine) from Western Europe



INTERDREX offers products made from certified FSC spruce lumber. These products include doors, windows, garage doors, shutters, and other elements for garden houses. They are certified under FSC certificate number CU-COC-818421.

In compliance with the requirements of the FSC-STD-40-004 V3-0 standard, the management of INTERDREX declares that the company is not directly or indirectly involved in the following activities:

  • illegal logging or trade in illegal wood or forest products,
  • violation of human rights in forestry operations,
  • destruction of conservation values in forestry operations,
  • significant conversion of forests to plantations or non-forest use,
  • introduction of genetically modified organisms in forestry operations,
  • violation of any of the ILO Conventions as defined in the ILO Declaration on Fundamental Principles and Rights at Work, 1998.

    Feel free to inquire about the FSC© certified products.


The wooden elements for garden houses offered by INTERDREX are PEFC certified. This ensures that our customers can be confident that the products they purchase are made from raw materials sourced exclusively from areas managed in accordance with the criteria of sustainable forest management.

Management Responsibility

The management of INTERDREX Sp. z o.o. ensures that the supply chain requirements, as outlined in the PEFC ST 2002:2013 standard "Chain of Custody of Forest Based Products – Requirements," have been implemented and are being met, as confirmed by PEFC certificate number CU-PEFC-818421.


High quality concealed hinges


SKG (Stichting Kwaliteitscentrum Gevelbouw) certified multipoint locks


A wide selection of accessories for doors and windows.


Solid, laminated stile


Our doors and windows have high technical specifications. You can choose from various options.

Tempered (ESG) glazing (also in double glazing version).

Doors and windows with 4 float/ 16 Ar/ 4LE double glazing with U=1.1.

Frosted and bronze glass available.

Modern painting lines

Our factory is equipped with several modern high-capacity painting lines with UV-drying systems that ensure the smoothness of painted surface, perfect coverage and uniformity of colour.

Modern painting lines

Our factory is equipped with several modern high-capacity painting lines with UV-drying systems that ensure the smoothness of painted surface, perfect coverage and uniformity of colour.

Painted finish

Although the natural colour of our wood is beautiful, there is a growing number of customers who prefer painted doors and windows. We can offer any RAL colour.

About us

We are a family company with over 30 years of experience

Since 1990 we deliver solid wood doors and windows to top manufacturers of garden houses and saunas in Germany, The Netherlands and Belgium.

We offer our B2B clients full customization, competitive prices, short delivery times and unrivalled production capacity allowing us to supply even several trucks per month to each customer.

Our skilled technical design team will allow you to enhance your portfolio with state of the art products following latest design trends. Our experienced and innovative crew coupled with modern CNC machine park can bring any product idea in your head to life within a very short time.
Gdańska 50
84-206 Bieszkowice
Gdańska 50
84-206 Bieszkowice