To get the proportions right base the rug size on the interior dimensions of your seating area and not just the coffee table so it fills the negative space created by your furniture grouping.
Area rug under coffee table size.
Area rugs that are 4 x 6 feet or 6 x 9 feet are generally suitable for using under coffee tables.
In this room a small round rug would create the floating island effect as i described above not a cohesive look.
Depending upon the size of the room there can be more rug extension around the bed as seen in this room by lauren nelson design but not less.
If you need to go with a slightly smaller rug.
For the best rug size in your dining area measure the length and width of the table.
It s tempting to mimic the shape of the coffee table instead and opt for a smaller round rug but it would throw off the balance.
For an area rug to look balanced under a bed it should be large enough to extend beyond the sides of the bed at least 18 inches for a king or queen bed and at least 12 inches for a full or twin bed.
If you want to be confident that you re choosing the right area rug size for your dining room table simply add at least 60 inches to the length and the width of your table to get your ideal rug size.
If you are placing the rug under a coffee table make sure that it can accommodate all four legs of the table.
The front two legs of all major pieces of furniture should fit on your area rug sofas chairs tables and even beds.
Living room area rug placement size.
Option 2 larger rooms typically require a rug that is between 8 x 10 9 x 12.
Don t be too funky and try to use round rugs with square tables leave that to the experts use a rectangular rug with rectangular coffee table and a round or oval area rug with a round or oval coffee table.
Choose a rug that s at least 2 feet longer on each side.
Only a coffee table on the rug perfect for small or narrow spaces this layout plays off the room s scale to make it feel larger.
For smaller living rooms you have two options.
Leave exposed flooring showing.
For instance a 40 by 60 inch table should be paired with at least an 8 by 10 foot rug but would work best with a 9 by 12 foot rug.