• Box Heart – Boxed heart timbers are timbers that include the “heart” of the tree within the edges of the timber. Although box heart timbers can come in any dimension, it is typically more common in larger dimensions.
  • Free of Heart (FOCH) – Free of heart timbers are cut to exclude the heart of the tree. Checking occurs much less frequently in FOCH timbers, thereby making a more structurally sound timber than boxed heart timbers.