Specifying Structural Plywood Grades
Structural plywood face veneer qualities can be specified to suit the appropriate application, for
example, where one face is required to meet a specific requirement and the back will not be visible. This is
typical for plywood flooring which may require a quality C solid face, but in most applications, a quality D
back veneer will suffice. The structural plywood is specified with the required face veneer quality first
followed by the back veneer quality e.g. CD. A guide for selecting suitable grades for various uses is shown
in TABLE 2.1. Availability of the higher face grades should be checked before specifying.
Description and Suggested Uses
Used where the appearance of both faces is important. Boats,
For uses similar to AA panels, but where the appearance of one
side is less important
Use where the appearance of only one side is important. Feature
walls, soffits, furniture
A C or D
Uses where high quality paint finish is required both sides.
Used where a high quality paint finish is required one side and
the appearance of the other side is not important. Hoardings,
internal walls, soffits
B C or D
A utility grade panel with two sanded, solid faces. Flooring,
A utility grade panel with one solid face. Flooring, containers,
A utility grade intended for structural applications where
appearance is not important. Bracing, gussets, webs in beams
TABLE 2.1: Grade Use Guide
Veneer Quality A
Veneer quality A describes a high quality appearance grade veneer
suitable for clear finishing. This appearance grade quality should be
specified as a face veneer for plywood where surface decorative
appearance is a primary consideration in addition to structural
performance and reliability.
Veneer Quality S
Veneer quality S defines an appearance grade veneer which
permits natural characteristics as a decorative feature, subject
to agreement. The type and frequency of the natural characteristics
that are acceptable is to be based on a written specification,
acceptable to both the manufacturer and the purchaser.
Veneer Quality B
Veneer quality B is an appearance grade veneer with limited
permitted amounts of sound inter-grown knots and filled splits
and holes. Plywood with a quality B face is suitable for high quality
Veneer Quality C
Veneer quality C is defined as a non-appearance grade with a
solid surface. All open defects such as holes or splits are filled.
Plywood with a quality C face is intended specifically for applications
requiring a solid non decorative surface such as in plywood flooring
which is to be covered with carpet or other flooring overlays.
Veneer Quality D
Veneer quality D is defined as a non-appearance grade with
permitted open imperfections. Unfilled holes up to 75 mm wide
are permitted in Veneer Quality D. Plywood manufactured with a
quality D face has the lowest appearance grade of structural
plywood under the Standard. It is designed specifically for
applications where decorative appearance is not a requirement and
structural performance is the prime consideration.
plywood bracing is such an application.如无特殊说明，文章均为本站原创，转载请注明出处。If there are no special instructions, the articles are original, if you want to use or reproduce, please indicate the original source www.plywoodinspection.com,If you find that our articles infringe on your copyrights and interests, please email us at firstname.lastname@example.org in time and we will delete it at the first time.