For pine stands 3-12 years old, FSI supervises Pre-Commercial Thinning (PCT) meaning that the trees that are cut are too small to sell vs. a commercial thinning. PCT where needed gives trees room to grow right from the start by regulating the number, quality, distribution, and occasionally species of the remaining trees.
For pine stands 14-30 years old, FSI negotiates and supervises one or two Commercial Pulpwood Thinnings**, removing the smaller (defective, diseased, or suppressed) trees to improve the growth and value of the remaining trees.
For hardwood or mixed stands 10-25 years old, FSI supervises Crop Tree Release (an investment where needed and chosen by the client) to select and release the best trees for future growth.
For hardwood or mixed stands 18-40 years old, FSI negotiates and supervises Commercial Improvement Cuts, to select and release the best trees for future growth.
FSI marks the trees to be commercially thinned, depending on landowner objectives, along with the age, size, site, and stocking dynamics of any particular forest stand.