Choosing and buying cabinet quality lumber - How Cabinet-Grade LumberIs Sized

Unlike dimension lumber, which is milled to industry-established nominal thicknesses, widths, and lengths, most cabinet-quality lumber stock comes in random widths and lengths to keep waste to an absolute minimum. In addition, since all furniture has different dimensions, there's no need for dimensionalized stock.Choosing and buying cabinet quality lumber - How Cabinet-Grade Lumber Is Sized - cabinet-quality lumber

Thickness, though, has been standardized. As you can see from the chart above, for cabinet-quality lumber thickness is expressed in different ways. Don't be confused by this; remember that the quarter designation and the nominal thickness are the same thing.

When you order cabinet-quality lumber, you'll receive a board as long or longer and as wide or wider than the item ordered; the thickness (if surfaced) will be close to that listed in the chart.