lumber grade

lumber grade

A classification used by the lumber industry for pieces of lumber: the categories are standard, structural, and utility.
References in periodicals archive ?
Quality Indexes for red oak (Quercus rubra) and white oak (Quercus alba) logs were established using multivariate regression models developed by the US Department of Agriculture (USDA) Forest Service that predicted green 4/4 lumber grade yields from hardwood sawlogs.
Be ready to articulate your need in terms of clear lengths and widths required instead of lumber grade to maximize the benefit.
They slide and stack the lumber in piles, sorting them according to the lumber grade marked on each piece.
Lumber grade, the marker station's throughput rate and the complexity of the cutting bill affect accuracy.
First, we compiled the volume of each lumber grade for each size and defect class of trees processed in the sawmill.
A better approach is for the rough mill foreman to smooth flow by adjusting cutting bills, lumber grade brought to the mill, lumber length and width of lumber brought to the mill.
Shifts in lumber grade and sizes, which are strongly related to decreasing log size, have also impacted the proportion of residue produced by western sawmills, but these are modest and somewhat offsetting, with the lumber mix moving to somewhat narrower, but thicker grades with a lower proportion of wide 1-inch boards and an increase in 2-inch-thick but narrower grades of dimension lumber (Keegan et al.
Consideration should be given to whether lumber grade, species or size changes might be coming.
Interestingly, this recommendation corresponds to the results of reclaimed lumber grade reduction studies performed by Falk et al.
Rough mill managers may be able to control the incoming lumber grade mix, which in turn will impact yield and lumber usage and consequently the lumber cost.
The software also allows a user to model, simulate, and examine the complex relationship among cutting bills; part dimensions, quantities, and qualities; processing options; and lumber grade mix.
The unit shows the sawyer how each board should be cut for a given cutting bill and suggests the best lumber grade mix to use.