This tab is used to enter minimum dbh and top diameters for pine and hardwood products. The Product Specs tab includes textboxes for minimum dbh and top diameters of: pine pulpwood; pine chip-n-saw; pine sawtimber; hardwood pulpwood; and hardwood sawtimber. Secondary allocation, which allows GML users to reflect local and genetic differences in chip-n-saw and sawtimber volume, is disabled but can be enabled on request.