Builders FirstSource is the nation's largest building materials supplier. Our Johns Island SC Lumber Yard proudly serves builders, contractors & remodelers in Johns Island and surrounding Coastal SC Area with their building supply & construction needs. This facility offers the following building supplies & services: Lumber and Building Materials, Trusses, Wall Panels and Components, Doors & Millwork, Windows, Design Center & Showroom, Business Center, Pro Retail Store, Customer Pick Up | Will Call, READY-FRAME®, Mill Shop, Install Services. Visit us today to discover why we are known as builders' first choice!