4 best online rug stores worth your money right now — and what to buy from each

If a room feels unfinished, the right rug can pull it together. The right size and color can open up a space, add warmth and anchor your furniture. From large area rugs to washable styles, options from Amazon, Rugs.com, Rugs USA and Wayfair show you don’t have to spend a lot to make a big impact.

In living rooms, place rugs under the front legs of your furniture, or go large enough to fit all legs. For dining areas, choose a rug big enough for chairs to stay on it when pulled out. In bedrooms...