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Clear Grades

Grade Description Grading Rule Paragraph
Kiln dried clear grades of western red cedar trim boards graded as finish lumber. Typically available as S4S or S1S2E products.
Clear Heart
THUMBNAIL OF SIDING The highest grade. Includes only pieces with heartwood on the exposed face. Many pieces completely clear, others have minor imperfections that do not detract from their fine appearance. NLGA 200a WCLIB 102-b
A Clear*
THUMBNAIL OF SIDING Permits somewhat more imperfections than Clear Heart but the grade is still restricted to pieces with excellent appearance.

*Common specifications are A and Better and A and Better with a percentage of B Grade allowed.
NLGA 200b WCLIB 102-c
B Clear
THUMBNAIL OF SIDING Permits slightly larger and more numerous characteristics than A grade but occassional pieces may require trimming to yield high grade pieces in shorter lengths. Most often supplied as a percentage with A grade. NLGA 200c WCLIB 102-d
C and Better Clear
THUMBNAIL OF SIDING High quality lumber for use where appearance is important.In addition to interior and exterior trim, lumber of this grade is used for cabinetry, doors, windows and similar applications. NLGA 202b, c
WCLIB 149-b, c
WWPA 10.11, 12
D Clear
THUMBNAIL OF SIDING This grade permits larger and more numerous natural characteristics and is used where general utility is more important than appearance.

1 NLGA - National Lumber Grades Authority
WCLIB - West Coast Lumber Inspection Bureau
WWPA - Western Wood Products Association
NLGA 202d
WCLIB 149-b, c
WWPA 10.13

Building a wood deck visit our deck plan & design web site..
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