When selecting the ideal width for a sectional chaise sofa, the most important factor is ensuring it properly fits and flows with your living room dimensions. A general guideline is to choose a width no wider than 8-10 feet, as anything larger may feel overwhelming and bulky in the average living room. Consider the room's square footage and existing traffic paths - you don't want your new sectional obstructing the natural flow. For smaller living rooms under 200 sq ft, a more compact 6-7 ft sectional width is recommended to avoid hogging too much visual space. Larger living areas around 300-400 sq ft can comfortably accommodate chaise sofas in the 8-10 ft width range, providing ample lounge seating. At the end of the day, the right sectional width strikes that stylish balance between maximizing seating capacity and preserving an open, airy feel in your living room.