The size of your round rug is crucial for the overall look. For small rooms or next to the bed, a smaller cm rug of 80 to 120 cm can be a subtle addition. Under round dining tables, medium to large round rugs of 160 cm or more fit, depending on the size of the table and chairs. A large rug can add extra atmosphere to spacious rooms, with the size of the rug making the most of the space.