3a Hardwood Grade Pictures

Most hardwood lumber produced in this country is graded using the rules developed and maintained by the national hardwood lumber association nhla.

3a hardwood grade pictures. Hardwood lumber grades as defined by the u s. One of the advantages of solid construction is that most 3 4 thick solid wood floors have about 1 4 or 6. Among the many qualities that influence the appearance of any particular hardwood flooring is the grade of the wood. 1 3 w or 1 2 l widest wane added together.

Board is graded from the poorer face. 6 wider fas limitation applies to better face. Depending on the species exotic flooring is not usually uniform in color but clear grade will be the most uniform in appearance of color and grain. 3a common and no.

Common grade numbers 1 2a 2b 3a and 3b for hardwood require less total surface area and a lower percentage of clear wood than fas lumber. 2b common sound wormy no. 3a common which is often combined with no. In 1897 hardwood lumber producers and users formed the nhla to standardize the grading of hardwood lumber.

It is an excellent paint grade. National hardwood lumber association in descending order of quality are firsts seconds no. The fas grade which derives from an original grade first and seconds will provide the user with long clear cuttings best suited for high quality furniture interior joinery and solid wood mouldings. However there are terms that are sometimes used such as character grade for species such as hickory and maple.

Minimum board size is 6 and wider and 8 and longer. Yields 83 1 3 percent of clear face cuttings with minimum sizes of 4 x 5 or 3 x 7. Better face to grade fas poor face to grade 1 com 4 x 2 3 x 3 3 x 2 3 x 2 not less than 1 1 2 wide containing 36 sq. The tongue interlocks with the groove to fit the boards together.

Almost all boards sold for hardwood flooring in the u s. The fas grade includes a range of boards that yield from 831 3 10. Solid hardwood floor planks are made with a tongue and groove edge locking method which makes it easy to join the planks together and make a strong joint. The grading of lumber actually refers to the appearance of the individual planks and what part of the tree it is taken from so it s mostly.

Are graded according to standards originally laid out by the national oak flooring manufacturers association nofma to help create consistency in the quality of oak flooring in the u s. Clear grade will have the longest average board length and contain the least amount of natural imperfections among other grades. The grade levels for hardwood are clear grade select and better no 1 and no 2. The percentage of clear wood required decreases as the grade decreases and beginning with grade 2b common the clear wood may include sound defects including stains and intact knots.

One side of the board has a tongue and the other has a groove. Firsts and seconds fas the best and most expensive grade. Clear grade clear grade is the highest grade of exotic flooring. Length can be on both edges.

Boards 6 and wider 8 and longer.