Old growth heart pine floors are a beautiful wood flooring choice for its hardness and durability. American Reclaimed Wood Floors old growth heart pine is up to 85% heart. The "heart" is the heart wood or the non-living center of the tree trunk of the Longleaf Pine. American Reclaimed Wood Floors old growth heart pine flooring can be unfinished or stained any color to create the look and feel you want in your flooring. Old growth heart pine floors can be milled with a clean face or circle saw face both are gorgeous wood flooring. Old growth heart pine is available in a wide range of widths from five inch up to an eleven inch face, with extremely long lengths up to fourteen feet long. All of our old growth heart pine flooring is tongue and groove, three-quarters inch thick, kiln dried and ready to install. Stair treads are also available to be custom made for your project.