European oak grade standard ( by yorking hardwood):

Hardwood flooring grade chart. In the united states, hardwood strip flooring is sold in face widths of 1½ inches, 2 inches, 2¼ inches, and 3¼ inches. Every board is sawn from the first 40′ of a tree and cut only from mature timbers. The wood floor’s top wear surface.

These ratings were done using the janka hardness test. Wood that exhibits similar attributes such as character, length and. The national wood flooring association (nwfa) uses a standard lumber grading system that assesses how much variation in natural color and character the.

These are european tests which also satisfy the. The #1 common grade shows off natural swirls, streaks, and other designs in the. It is one of the best.

Maple, beech, or birch flooring. If you have any questions. Before choosing your hardwood flooring, you need to know four commonly used wood grades.

In contrast, cabin grade, the. This is followed by no 1 which has more color variation and some occasional knots,. The standard thickness for solid hardwood is 3/4″.

Grading rules have two specific purposes. Here are ten of the most popular hardwood flooring wood species. For thin profile solid hardwood, 5/16″ is the standard.