This varies depending on the selected product, the position and the number of cooktops and cooktop extractors. With a standard arrangement involving two cooktops and one cooktop extractor, you need a floor unit with a width of at least 900 mm for the BORA Professional and BORA Classic ranges. With three cooktops and two cooktop extractors, a width of 1,400 mm is required. This can be created by installing a single front cover across multiple floor units arranged in any format. With BORA X Pure, the floor unit must have a width of 900 mm. With BORA Basic BHA/BHU and BORA Pure, the floor unit must have a width of 800 mm.