Siding

Real Cedar Siding

Introduction
Siding Home
Why Real Cedar?
Western Red Cedar Characteristics
Sustainability
Design & Spec
Siding Profiles
Bevel Siding
Board and Batten Siding
T&G Siding
Lap or Channel Siding
Trim Boards
Shingle Panels
Building
Preparation For Installation
Pre-Building Tips
DuPont™ Tyvek® DrainWrap™
Installation
General Installation
Installing Profiles
Bevel
Board & Batten
Tongue & Groove
Lap or Channel
Trim Boards
Shingle Panels
Finishing
How to Finish
Types of Finishes
Care & Maintenance
Restoration
Decking

Real Cedar Decking

Introduction
Decking Home
Why Real Cedar?
Western Red Cedar Characteristics
Sustainability
Planning
Decking Calculator
Deck Projects
Roof Deck
Raised Deck
Ground Level Deck
Uphill Sloping Lot Deck
Building
Fastener Recommendations
Stair & Railing Installation
Finishing
Finishing Tips
Restoration
Care & Maintenance
Outdoor

Real Cedar Outdoor

Introduction
Outdoor Home
Why Real Cedar?
Western Red Cedar Characteristics
Sustainability
Design & Spec
Real Cedar Free DIY Project Plans
Design Tips
Building
Project Preparation
Outdoor Fasteners
Fence Construction
Fence Specifications
Prebuilt Fence Panels
Finishing
Finishing Techniques
Finishing Tips
Restoration Tips
Project Care & Maintenance
Indoor

Western Red Cedar Indoor

Introduction
Indoor Home
Why Real Cedar?
Western Red Cedar Characteristics
Sustainability
Planning
Cedar Saunas
Traditional Saunas
Infrared Cedar Sauna
Cedar Indoor Design Tips
Building Products
Building Preparation
Indoor T&G Paneling
Doors & Windows
Blinds & Shutters
Finishing
Finishing Tips
Care & Maintenance
Timbers

Western Red Cedar Timbers

Introduction
Timbers Home
Why Real Cedar?
Western Red Cedar Characteristics
Sustainability
Planning
Grades and Specifications
Building
Preparation
Installation
Maintenance
Finishing
Restoring Western Red Cedar Timbers
Care & Maintenance
Contact

Contact

About & Contact WRCLA
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For Architects and Builders

Board and Batten Siding

Board & Batten Characteristics

Board and batten is a vertical design created using wide clear or knotty cedar boards spaced apart with narrower boards (battens) covering the joins. There are no set board or batten widths – various combinations are used to create different looks suitable for large or small scale applications. A frequent combination is 1″x3″ battens and 1″x10″ boards. This can also be reversed with boards installed over battens to create a deep channel effect.

Board and Batten Cedar Siding Peak

Texture and Sizes

Rough sawn, unseasoned boards or boards surfaced on one side and two edges (S1S2E) are commonly used for board and batten siding. Sizes are from 1″x 2″ to 1″x12″.

Board and Batten Grades

Clear Heart

Clear Heart Cedar 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.

Grading Rule Paragraph

NLGA 200a
WCLIB 102-b
WWPA 20.11

A Clear

A Clear Cedar 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 Clear allowed.

Grading Rule Paragraph

NLGA 200b
WCLIB 102-c
WWPA 20.12

C and Better Clear

C Clear Cedar 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.

* Common specifications are C and Better and C and Better with a percentage of D Clear allowed.

Grading Rule Paragraph

NLGA 202b / 202c / 202d
WCLIB 149-b / 149-c / 149-d
WWPA 10.11 / 10.12 / 10.13

Select Knotty

select knotty grade cedar siding

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 percentage of quality Knotty allowed. Typically available commercially as Select allowing 10%-15% Quality Knotty in rough or surfaced products.

Grading Rule Paragraph

NLGA 204a / 204b
WCLIB 111-e / 111-f
WWPA N/A

Proprietary

Proprietary grade knotty cedar siding

Graded to the manufacturer’s specifications to meet the intended end use. Boards often represent good value in the no-hole product range. Consult manufacturers for grade descriptions and nomenclature.

Grading Rule Paragraph

NLGA N/A
WCLIB N/A
WWPA N/A

Standard and Better

standard or better grade cedar siding

Suitable for exterior construction. Occasional pieces may require trimming to yield suitable quality for the intended end use. Typically supplies as S1S2E products. S4S products may require special ordering.

Grading Rule Paragraph

NLGA 114a / 114b / 114c
WCLIB 118-a / 118-b / 118-c

NLGA – National Lumber Grades Authority
WCLIB – West Coast Lumber Inspection Bureau
WWPA – Western Wood Products Association

BOARD AND BATTEN Sizes

Thickness (in.)Width (in.)
NominalActualNominalActual
DryGreenDryGreen
Rough
13/43/421-3/42
13/1613/1632-3/43
7/87/843-3/44
5/41-1/81-1/865-3/46
87-3/48
109-3/410
1211-3/412
Surfaced One Side, Two Edges (S1S2E)
111/1611/1621-1/21-9/16
7/83/432-1/22-9/16
13/1643-1/23-9/16
7/865-1/25-9/16
5/411-1/3287-1/47-3/8
21-1/21-1/2109-1/49-3/8
1211-1/411-3/8
Surfaced Four Sides (S4S)
111/1611/1621-1/21-9/16
7/83/432-1/22-9/16
13/1643-1/23-9/16
7/865-1/25-9/16
5/411-1/3287-1/47-3/8
21-1/21-9/16109-1/49-3/8
1211-1/411-3/8

Board and Batten Coverage

Nominal Width (in.)Dressed Width (in.)Exposed Face Width (inches)
21-9/16Varies with width of board selected
43-9/16
65-9/16
87-3/8
109-3/8
1211-3/8

Board and Batten Specifications

Specification Information RequiredSample Specification
Species:
Western Red Cedar
WRCLA Western Red Cedar
Product Pattern and Intended Use:
Siding is used as an exterior cladding to provide both weather protection and architectural style. The designed may choose from clear or knotty, kiln dried or green (unseasoned), rough sawn or surfaced on one side and two edges (S1S2E).
S1S2E Boards
Size:
Specify the nominal size of the product.
1″x 3″ Battens
1″x10″ Boards
Grade:
The grade of the product governs its overall quality. Refer to WRCLA specification literature or grading agency rule books for available grades.
A and Better
Grading Agency Paragraph:
To ensure that the product meets a written standard, an agency grade paragraph should be referenced.
NLGA para.
200a, b
Moisture Content:
Specify if the product is to be green (unseasoned) or kiln-dried.
Kiln dried
Surface to be exposed:
Noting the application orientation will assist the supplier in shipping the right product for the job.
Resawn face
Quantity:
Express in linear feet
10,000 linear feet
1″x3″
10,000 linear feet
1″x10″

Please note that the measurements displayed on this webpage are displayed in Imperial units. If metric is required, please perform the proper conversion as necessary.

Please note that the standards, grades and other information mentioned on this webpage are based on North American data. Please refer to your local resources or authorities for country-specific data relating to a particular country if required.