The Design Center at The Merchandise Mart is offering up to 75% off the latest outdoor furniture and accessories at its Outdoor Furniture Sample Sale. Shop hundreds of products from showrooms on floors 15-17; find a full list of those participating on the website. Many showrooms will also work with you to place custom orders at a reduced price through the Mart’s Designer-On-Call program. May 9-11, 9 a.m. to 6 p.m.