Map the usable space
Measure the room and mark the proposed rug outline with removable tape. Open doors and drawers, move dining chairs and walk through the room. The layout should work in use, not only in a photograph.
Connect the seating area
In a living room, a rug can bring the main seats into one group. Consider a size that reaches the front legs of the seating if the room permits. Compare the complete width and length; a single stated dimension is not enough to confirm the fit.
Match the surface to daily life
Consider foot traffic, pets, children, floor type and cleaning access. Look at the stated materials and pile information. Use a compatible underlay when appropriate, following the flooring and rug instructions.
Plan for care
Vacuum using a setting suitable for the rug. Blot spills promptly and avoid aggressive brushing unless the maker recommends it. Test a permitted cleaner in a hidden area and use specialist help for materials that need it.