"Home improvement center" means a retail store for the sale of tools, paint, lawn care supplies, and other similar equipment and supplies. This term shall include the sale of lumber, drywall, roofing, and other similar building materials where storage of the same utilizes less than 50 percent of the display and storage area. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003).