Purple Heart Hardwood Lumber is available in 4/4. We stock Purple Heart FAS, kiln dried. Purple Heart is a hard wood used in inlays and furniture building. Purple heart is prized for it's beautiful heartwood which, when cut, quickly turns from a dark brown to a rich purple color. It is a unique color for wood and very bold. This wood is commonly used in glue ups and inlays for furniture and woodworkers.