short for Sustainable Forest Initiative, a program establishing conservation and sustainable forestry standards for private landholders. wood which has been cut into shorter lengths of 1.5 to 2.5 meters before delivery to the pulp mill. Generally being phased out in most pulp mill operations in favor of chips or longwood. wood from coniferous trees, characterized by needlelike leaves, such as pine, spruce, and hemlock. The fibers in softwoods are longer and make stronger paper.