Category: Glossary of Terms -A

The time elapsed between spreading adhesive on surfaces to be joined and application of pressure to the joint. Open assembly time is from the beginning of spreading to joint closure. Closed assembly time is from joint closure to application of full pressure.

Method of controlling the annual or periodic acreage harvested from a forest, despite fluctuations in fiber-yield volumes. This leads to a managed forest.

A program of the American Forest Foundations Center for Family Forests is the oldest of forest certification programs and was established in 1941. The ATFS focuses its program on private family forest landowners in the United States.

The American Softwood Lumber Standards establishes standard sizes and requirements for the development and coordination of lumber grades of various species, the assignment of design values when called for, and the preparation of grading rules applicable to each species.

Allocation of anticipated future forest timber yields to the present allowable cut; this is employed to increase current harvest levels, especially when constrained by even flow by spreading anticipated future growth over all the years in the rotation.

Volume of timber that may be harvested during a given period of time to maintain sustained production.