Substructure elements for doors and windows
Moisture and rot-resistant



  • Rot-resistant cover panel
  • Thermal insulation values up to 0,3 W/m²K
  • High load capacity
  • Circumferential wooden edge band
  • Good mounting options
  • Retain their shape and dimensions





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
  • Delivered picked to order
  • No waste, machine, labour and storage costs


The following additional services can also be commissioned:

  • Additional wood inserts freely selectable



Product description:


Surfaces White primed
Cover panels Cement-bonded chipboard
Insulation Intensive expanded polystyrene rigid foam, 30 kg/m³
Edge band Spruce pine
Thickness 40 to 99 mm
Sizes 545 x 95 to 3338 x 1244 mm


Frinorm rot-resistant plinth elements for wooden and wood-metal balcony doors for floors are especially suited for a wide range of demands, such as thermal protection and a high load capacity. They are available with a rot-resistant cement-bonded chipboard, coated with white primer. Intensely expanded rigid polystyrene foam (EPS perimeter), 30 kg/m³, is used for thermal insulation.