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North America's Largest Trade-Only Wholesale Home Improvement Showroom ProSource Wholesale showrooms can be a great extension of your business. We offer our trade pro members guaranteed low wholesale prices on the best materials in the market, plus unique member benefits to help you reduce home improvement project costs and win more bids. ProSource saves trade professional members time and money, and helps you grow your list of satisfied clients. Our 135 wholesale showrooms display carpet, hardwood, ceramic, stone, laminate, luxury vinyl, custom rugs, cushion, sundries and supplies from more than 120 suppliers. And with each day, our product selection is growing to include cabinets, countertops, lighting, decorative plumbing, vanities and much more. Visit your local ProSource showroom website. Each showroom is independently owned and operated, and selection varies by location.