A sliding system with improved thermal insulation parameters due to  the  use of a thermal separator enriched with glass fiber. The profile structure allows the construction of large luxurious doors with single or double glazed sealed units.  The  materials and technical solutions used help  achieve  a high level of thermal and acoustic protection. These doors are perfect for detached houses as well as apartments that require open spaces.

Slide Patio Door.

Application and functionality

  • robust and slender profiles enable the construction of low threshold doors up to 10ft 5.98 inch high and up to 10ft 9.92 in wide
  • number of sliding leaves: 1-4 pieces
  • maximum sash weight 881 lb – larger structures and glazing provides more light
  • optional fittings and anti-burglary glass
  • optional door drive controlled via a push-button or a remote control
  • optional use of closure sensors – reed switches
  • micro ventilation (optional)


3-chamber sections with a depth of:

  • sash: 3,03 inch
  • frame with two guide rails: 6.85 inch
  • frame with three guide rails: 10.66 inch

thermal breaks made of glass fiber, reinforced polyamide, high-performance sealing system in the track area and at the leaf contact point


thickness of the filling in the fixed or movable sash: 0.53 inch – 2.30 inch

air permeability up to class 4, EN 12207
watertightness up to class 9A (600 Pa), EN 12208
thermal insulation Uf from 1.4 W/(m²K), Uw from 0.84 W/(m²K)*
wind load resistance up to class C4, EN 12210

Slide double rail

Slide single rail

Slide Patio Door – Corner Version.

Open up to a new space

  • lift&Slide door with a movable corner post opens a wide passage to your patio
  • optional threshold covering structure to create an almost flat floor


With OKNOPLAST, embellishing your interior requires attention to the smallest details. Of course, color, material, and shape of the aluminium window are all important when choosing, but let’s not forget the accessories.


A variety of more than 50 colors in any combination of your choice are available for both indoors and outdoors. High-performance multi-layer film that is weather and UV-resistant retains its gloss throughout its life.

Picture Window Inspiration.

Get a personal consultation.

For all questions, problems, and suggestions find an OKNOPLAST expert near you and ask for a quote.