Buying a sofa is an investment, making it important that you spend your money on something that’s built to last. The average sofa lasts for seven to 15 years. However, by buying smart, it’s possible to extend the average lifespan of your sofa to several decades or longer. While it’s easy to find inexpensive sofas, finding something of quality is far more difficult. From low-cost furniture brands like Ikea to discount retailers, the furniture industry is often dominated by brands that prioritise cost over durability, build quality and materials.…