Clear boards have a limited number of natural characteristics and are specified when “clean”, fine appearance of the highest quality is desired. They are available kiln dried or unseasoned. Knotty boards present a more rustic appearance and may be specified seasoned or unseasoned. Texture options of rough, surfaced one side, two edges and surfaced on four sides further enhance your design flexibility.
Western Red Cedar boards may be specified in one of three surface finishes: rough; surfaced one side, two edges (S1S2E); or surfaced four sides (S4S).
The rough sawn texture from either circular or band saws is present on all four sides.
This versatile product is the most popular choice for trim boards. The surfacing process resulting in a rough sawn face and a smooth back provides uniform width and thickness tolerances. Typically graded from the rough face, it may in some instances be reversible to the smooth back.
The smooth surface on all four sides presents a uniformly sized product with a quality appearance. This surface finish is most commonly found on Clear grades.
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Kiln dried clear grades of western red cedar trim boards graded as finish lumber. Typically available as S4S or S1S2E products.
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.
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 Clear allowed (NLGA 200c/WCLIB 102-d/WWPA 20.13).
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.
* Common specifications are C and Better and C and Better with a percentage of D Clear allowed.
NLGA 202b, 202c
WCLIB 149-b, 149-c
WWPA 10.11, 10.12
Knots are sound and tight. Other characteristics are limited so they do not detract from the end use intended.
* Common specification is Select Knotty with a percentage of Quality Knotty allowed.
Graded to the manufacturer’s specifications to meet the intended end use. Boards often represent good value in the no-hole product range. Consult manufacturer’s for grade descriptions and nomenclature.
Suitable for exterior construction. Occasional pieces may require trimming to yield suitable quality for the intended end use. Typically supplied as S1S2E products. S4S products may require special ordering.
WWPA 30,50 (118a, b, c)
NLGA – National Lumber Grades Authority
WCLIB – West Coast Lumber Inspection Bureau
WWPA – Western Wood Products Association
|Thickness (in.)||Width (in.)|
|Surfaced One Side Two Edges (S1S2E)|
|Surfaced Four Sides (S4S)|
|Specification Information Required||Sample Specification|
Western Red Cedar
|WRCLA Western Red Cedar|
|Product Pattern and Intended Use:
Trim boards are generally used in applications such as corner boards, fascia, skirting, and detail around windows and doors. Specify the surface finish by choosing surfaced four sides (S4S) surfaced one side and two edges (S1S2E), or rough sawn all round (rough).
Specify the nominal size of the product.
|1 x 6 in.|
The grade of the product governs its overall quality. Refer to WRCLA specification literature or grading agency rule books for available grades.
|Grading Agency Paragraph:
To ensure that the product meets a written standard, an agency grade paragraph should be referenced.
|NLGA para. 200a, b|
Specify whether the product is to be green (unseasoned) or kiln-dried.
|Surface to be exposed:
Specify the application orientation to assist the supplier in shipping the right product for the job.
Express in linear feet
|2,000 linear feet|