WIDTH = WINDOW MEASUREMENT + 5 CMS ON EACH SIDE

HIGH CEILING INSTALLATION:

   Ceiling height at the end of the window + 5 cm

HIGH WALL INSTALLATION

   Window height + 15/20 cms on the top + 5 cms on the inside

WIDTH = WINDOW MEASUREMENT + 5 CMS ON THE FREE SIDE

HIGH CEILING INSTALLATION:

   Ceiling height at the end of the window + 5 cm

HIGH WALL INSTALLATION

   Window height + 15/20 cms on the top + 5 cms on the inside

WIDTH = TOTAL HOLE MEASUREMENT - 0.5 CMS ON EACH SIDE

HIGH CEILING INSTALLATION:

   Ceiling height at the end of the window + 5 cm

HIGH WALL INSTALLATION

   Window height + 15/20 cms on the top + 5 cms on the inside