Infill for wooden and wood-metal windows
sound insulation



  • Thermal insulation values up to 0,2 W/m²K
  • Airborne sound insulation values up to 40 dB
  • All types of real wood veneers available
  • Circumferential wooden edge band
  • Good mounting options
  • Retain their shape and dimensions
  • Problem-free surface finishing





The following services are included in the square metre price:

  • Preassembled, custom-made according to the desired length, width and profile thickness
  • Four-sided counter profile work, tailored to your frame or threshold profile
  • Circumferential solid edge band
  • Delivered picked to order
  • No waste, machine, labour and storage costs


The following additional services can also be commissioned:

  • Edge banding possible
  • Additional wood inserts freely selectable
  • Special processing such as cut-outs, round and segment arches, ventilation slots or surface grooves are also possible
  • Special designs possible



Product description:


Surfaces Untreated, priming film, real wood veneer
Cover panels Plywood panel AW100
Insulation Glass wool, 20 kg/m³
Sound insulation Heavy bitumen foil
Edge band Spruce pine
Thickness 21 to 93 mm
Sizes 500 x 95 to 2988 x 1294 mm


Frinorm sound insulation infills are particularly well suited for use as a glass substitute in wooden and wood-metal windows where there is a high demand for sound insulation. They are available with a birch plywood panel AW100, untreated, birch plywood panel AW100 with primer foil or birch plywood panel AW100 with real wood veneer in all types of wood. Heavy bitumen foil is used for sound insulation, and glass wool (20 kg/m³) is used for thermal insulation. The infill is fabricated with a circumferential spruce edge band. Special edge bands can be inset according to your requirements. 

Test reports (PDF)