How to measure for a sofa that actually fits

The commonest reason a sofa goes back is not the colour. It is that it would not go through the door. Measure three things before you fall in love with anything: the wall the sofa will sit against, the narrowest point on the route from the street to that wall, and the diagonal of every doorway on the way. The diagonal matters because a sofa is turned on its side and angled through — the door's width alone will lie to you. Then check the piece's carton dimensions rather than its assembled ones. A flat-packed sectional often gets in where an assembled loveseat cannot, which is why we list both on every product page. If the numbers are close, use the "fits my space" filter on any listing page — it matches against the widest configuration a product comes in, not the narrowest, so nothing you see will surprise you on delivery day.