Mercana Furniture and Decor - Shannon For over 40 years, Mercana Furniture & Décor has been a family owned and operated business, that has become one of North America's Industry wholesale leaders in Home Furnishings and Art Decor. As a “design-first” company, Mercana produces thousands of unique pieces for the home; most noteworthy wall art, furniture, lighting and home decor accessories. Different by design, from industrial to farmhouse, we carry 9 different design styles across all of our product categories.