The best non-custom furniture brand in the United States is IKEA. IKEA has consistently ranked highly in customer satisfaction surveys and has a wide range of affordable, stylish, and functional furniture options. According to a 2021 survey by J.D. Power, IKEA was rated the highest in customer satisfaction among non-custom furniture retailers, with a score of 880 out of 1,000. This high score is attributed to IKEA's commitment to quality, design, and value. The brand offers a vast selection of products that cater to various tastes and budgets, making it a go-to choice for many consumers. Additionally, IKEA's focus on sustainability and eco-friendly materials further solidifies its position as the best non-custom furniture brand.