Old Mississippi Brick and Heart Pine (guess where they're based?) makes a practice of reclaiming beautiful antique and vintage hardwood floors, refinishing them, then reselling them to the public. Although the name says Heart Pine, Old Mississippi also carries Oak, Hard Maple, engineered flooring, and antique brick. Reclaimed flooring can be worked into a LEED program, has a long life expectancy, and is highly durable. Plank widths are 3"-8", with a 10" width also available. The grain is mixed vertical and flat, and the grain density is at a minimum of 6 rings per inch. There are some nail holes, but these antique characteristics are from a long life of wear, not mistakes. The knot content can vary greatly, and there is not a specification for heartwood, though bundles are usually "heavy heartwood," according to the site. Packaging is 10' nested, end-matched bundles. Old Mississippi can provide millwork and timbers in addition to flooring. Visit this neat company at heartpinefloors.com .