In the living room the sofa is the eye-catcher and the place where we spend the most time. But often the design of this room is more individual than the products offered by upholstered furniture manufacturers. Niches, projecting walls or ledges, pitched roofs, ovens or doors can thwart plans to buy the sofa of your dreams. Itâ€™s a centimetre too wide here, or the backrests donâ€™t fit there, or maybe the whole sofa is a bit too deep. Thatâ€™s why we compromise on our couch purchases and buy an off-the-peg model â€“ even though the trend for personalisation is making inroads into interior design in a growing number of areas.