How to Tell Plywood Grades Apart

Every plywood panel starts as veneer, and its grade determines what it's good for. It's easy to assume a lower grade means lower quality — but every grade has a job. Before you start a project, figure out which one actually fits.

Birch plywood is generally sorted by face grade into three groups: high (appearance), medium (utility) and technical (economy). Here's a quick guide.

High grade: B/BB and BB/BB

B/BB

A top-quality, appearance-grade panel with a premium face veneer. Used in high-end furniture and interior design. Key strengths: high strength, long service life and good looks. See B/BB specs.

BB/BB

Both faces are high-quality BB — smooth and free of major defects. Holds up to changes in humidity and temperature. Ideal for furniture and decorative interior or exterior components; paint it or finish it clear. See BB/BB specs.

Note: in most cases, knots and similar veneer defects are repaired with sound veneer patches.

Medium grade: BB/CP, CP/CP and CP/C

BB/CP

One decorative BB face that takes paint, and one utility CP back. Used for interior wall paneling where only one side shows.

CP/CP

Both faces are mid-grade and may show small checks. Often used for furniture carcasses, concrete forms and painted or overlaid utility panels. With proper surface prep, paint and varnish are fine.

CP/C

The CP face can be painted or overlaid; the C back is a utility face where knots and checks are allowed. No decorative role — typically used for shop fixtures, jigs and interior utility work.

Technical grade: C/C

The economy grade: both faces allow knots, checks and natural wood character. Used for packaging, cargo protection in transit and basic utility work. See C/C specs.

The bottom line

Choosing plywood isn't only about looks. The grade defines what the panel is for: higher grades when appearance and durability both matter, lower grades for purely technical roles. The right choice saves time and money — and gets you a better result.