McCoy's is a fourth-generation, family-owned supplier of lumber, building supplies and farm and ranch equipment with supply stores in Texas, New Mexico, Mississippi, Arkansas and Oklahoma. McCoy's customers have a passion for building. They aren't just good with their hands. They're good with their heads, too. And they know that McCoy's understands their business, their hobbies and their lifestyles better than any other building supplier.. Building materials including lumber,roofing,sheetrock,windows,doors,hardware,tools,paint,concrete,electric,fencing,cabinets,farm and ranch equipment,plumbing,and garden supplies.