| Clear Heart |
 |
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.
Grading Rule Paragraph
NLGA 200a
WCLIB 102-b |
| A Clear |
 |
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.
Grading Rule Paragraph
NLGA 200b
WCLIB 102-c
|
| B Clear |
 |
Permits slightly larger and more
numerous characteristics than A grade
and occasional pieces may require
trimming to yield high grade pieces
in shorter lengths. Most often supplied
as a percentage with A grade.
Grading Rule Paragraph
NLGA 200c
WCLIB 102-d
|
Knotty Grades
 |
| Select Knotty |
 |
Available kiln dried or unseasoned.
Knots are sound and tight.
Grading Rule Paragraph
NLGA 204a
WCLIB 111-e
|
| Quality Knotty |
 |
In this grade, natural growth characteristics
are not limited as stringently as
in Select Knotty. Cross cutting may
be required on some pieces to yield
tight knotted siding.
Grading Rule Paragraph
NLGA 204b
WCLIB 111-f
|
| Proprietary Grades |
 |
Designed to meet appearance requirements
for cedar sidings and trim. Ask your
WRCLA distributor for details.
Manufacturers may market their
own proprietary grades.
Grading Rule Paragraph
NLGA n/a
WCLIB n/a
|
| Standard and Better |
 |
Suitable for exterior construction.
Occasional pieces may require trimming
to yield suitable quality for the
intended end use.
Grading Rule Paragraph
NLGA 114a, b, c
WCLIB 118-a, b,
c
|
NLGA - National Lumber Grades Authority
Home
Sitemap
Contact
About WRCLA 
