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Plywood Grade (1-2) – US Plywood Standard (APA PS1-95 Construction and Industrial Plywood)

According to US Plywood Standard (APA PS1-95 Construction and Industrial Plywood), plywood can be classified into several grades, such as A-A, A-B, A-C, B-B, B-C, C-C , C-D . The grade refers to the grade of surface covering. The first letter refers to the grade of face veneers and the second letter refers to the grade of back veneers . The better the grade, the nicer the surface.

The following is a guide to these plywood grades .

1. A-A grade: is high grade . The face/back of plywood are both A grade . This grade is very expensive and is used for nice furniture or decoration requiring both sides of plywood to be nice and visible .

2. A-B grade: is high grade , too . Because the face is A grade and back is B grade, so the plywood is suitable for applications where face should be nice but back is less important, such as furniture, cabinets ……

3. A-C grade: is “economical” high grade . This grade is suitable for applications where (like roof overhangs) face is important but back is not important . Using C grade back is a good method to reasonably save costs .

4. B-B grade: is common grade for general usages . This grade is suitable for applications where face/back is not very important but should still be good .

5. B-C grade: is economical, common and utility grade . Usually, as for general usages, B grade face is OK while the back is not important . Thus using C grade back can save costs .

6. C-C grade: is economical, common and utility grade . Used where face/back are not important but the panel should be strong enough.

7. C-D grade: is cheap and utility grade .


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7 Responses

  1. Lyn****** 2009/12/07 at 07:49:59

    I’m in Atlanta, GA.

  2. Jeff Wellbrock 2016/09/30 at 15:05:35

    Where does it state that 23/32″ cdx plywood has 5 plys?

  3. Phill****** 2018/03/28 at 13:27:11

    I am an architect. I need to specify fire rated plywood (MR) for a commercial building exterior with Florida product approval and installation details. If you can provide this I would appreciate it very much. Thank you. Phil Clark Philip J Clark Architect Pl

  4. Mason Pan 2018/04/30 at 20:15:18

    I will confirm with you about your required specification

  5. Mason Pan 2018/06/07 at 10:28:00

    I have not heard the 23/32″ cdx plywood should has 5 plys. 23/32″ cdx plywood can have 13plys, 11 plies, 9 plies or 5 plies.

  6. Ali 2019/10/25 at 02:25:23

    Dear pan

    How the price differs between the different grades ? For exemple between A-A grade and B-B grade ? I mean as a percentage

  7. Plywood Suppliers 2019/12/21 at 08:53:39

    There is no a fixed percentage between The prices of different grades. The price difference between grades varies in Big Range in different Species of plywood.

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