The 68 mm thick wooden window is a tried and tested natural product that will give your building a pleasant atmosphere and a sense of cosiness and comfort. The product is suitable for use in new construction and renovated buildings. It features three different designs, allowing you to adapt it to the style of your building.

The wooden windows from this product range are distinguished by the structurally stable mortise and tenon corner joints, the high-quality precision processing of the wood profiles using a new, technologically advanced production line and comprehensive triple-layer surface treatment. The product meets the criteria of the Eco Fund of the Republic of Slovenia.

  • Design
  • Wood types and colours
  • Glazing
  • Security
  • Technical details
  • Advantages

INO-68 Standard

Angular edge lines and glazing bars that nicely match modern architecture.




Ino 68


INO-68 Stil A

Stylish edges with a unique design create a sense of cosiness and warmth. 




INO 68 Stil A 2

INO-68 Stil B

Solid wood window with a wooden drip cap that nicely matches the architecture of older buildings. 



   Ino 68 Stil B 2        












Colour chart

We offer a broad selection of colour coatings in compliance with the Inles and RAL colour charts. The coatings are water based and environmentally friendly. With a wide range of shades available, we are confident that you will be able to find a nuance to suit your taste.


Surface treatment

Surface treatment using protective coatings is the main factor in the longevity, durability and appearance of wood products. At Inles, we have dedicated a lot of attention to the matter and are proud of our robotic electrostatic final coating of wood products.


Glass covers the major part of the window area and has a significant impact on the thermal and acoustic performance of the window. The glass also lets natural light and solar energy into the room.



 The following options are available for the INO-68 wooden window:


  • Aluminium, stainless steel or plastic spacers
  • Thermal transmittance of glass: Ug from 1.1 to 0.5 W/m2K 
  • Acoustic performance of glass: Rw from 32 to 37 dB
  • Solar energy transmittance of glass: g-values from 34% to 63%
  • Various safety glass and muntin grille designs


The panes are sealed using permanent elastic seals that match the colour of the product. Inles windows use glass that is produced in Slovenia by the quality Austrian manufacturer Ertl glas.

Have a look at the comprehensive selection of Inles thermal and sound insulating glass and safety glass.




Builders’ joinery openings are the only way for bad guys to enter your home. This is why it is important to choose products with a high level of security.

Inles building hardware features a high level of security (RC1N) that can be upgraded even further. The following options are available for the INO-68 wooden window:

  • Tested equipment with grade RC1N and RC2 security level certificates.
  • MVS contact elements with window opening indicator (alarm)
  • Sponge-like closing members that prevent the casement from being removed from the frame.
  • Various models and safety glass levels.


Rc2 Eng 


 Certifikat WK2


Grade RC1 security hardwere 

Additional security - the RC2 hardwere 

The INO-68 wooden window is a technically sophisticated and tried and tested product. The rich standard equipment and quality of built-in materials ensure that even the standard windows meet and indeed exceed the market’s requirements. The product has been tested at reputable institutes and features excellent thermal transmittance, airtightness and watertightness. 

Technical brochure

Read the brochure on the equipment, possible implementations and thermal performance of the product.


Download the brochure


        CE mark

The product is labelled with the CE marking and is compliant with EU directives on free marketability on the EU market.


Declaration of Conformity    Ico CE Znak



  • All corner joints on the frame and casement are the mortise and tenon type, which is the strongest joint available in window frame construction
  • We use only quality wood that meets the RAL quality criteria according to DIN 6836
  • Triple-layer surface treatment using electrostatic coating
  • Thermally insulating drip cap is part of standard equipment
  • High level of security and load bearing capacity of the standard hardware
  • Permanent elastic seals ensure superior airtightness and watertightness, which are constantly controlled using our own testing machine
  • Certified and tested product
  • Broad selection of muntin grilles, glass types, handles, coatings, etc.
INO-68 Stil AIno 68INO-80 Soft A

Window U-value calculation 

Check calculations heat transfer of all our windows in combination with a variety of glazing.