
There are different types of openings to suit all spaces and lifestyles. Let’s take a look at the different openings that OKNOPLAST offers.
Of the various types of openings that can be found for your PVC windows, some are particularly classic and can be found in many homes. These include single-leaf, two-leaf, three-leaf or four-leaf windows, the most traditional openings.


Especially in the context of retrofits, it’s hard not to have tailor-made solutions. In fact, builders of the past adapted homes to the needs and desires of the owners and were not limited by current standards. Tailored openings make it adaptable to all buildings and all formats.
A gusseted window is a small opening. It is often found in garages or laundries. Its main function is to provide the necessary ventilation to limit the appearance of moisture and, in the long run, the appearance of mold. The gusset system is also sometimes integrated above an existing PVC joinery, whether it is a door or a window.


Fixed openings are incorrectly called openings. why? Just because they are windows that won’t open. The main purpose of fixed openings is to let light into the space rather than ventilation. Like other joiners, it is available in a variety of materials and colors to fully suit your space. For example, it can be installed high up on stairs to bring light into the space and avoid turning on lights.