"To match the furniture" means to find or choose something that goes well together with the existing furniture, either in terms of color, style, or design, so that they all look good together in a room. Full definition
Both bedrooms were intentionally laid out with matching furniture floor plans and subtle changes to highlight each girl's individual personality and sense of style. (atlantahomesmag.com)
The light brown walls and floors look charming, and you can install matching furniture in the room to create a perfect match. (designtrends.com)
Often it's easier to buy a bedroom set that will provide a complete and seamless look without needing to search for matching furniture items separately. (homeinteriordesignthemes.com)