Western

Wood

Products

Association

WP-7

8" LOG CABIN SIDING

2 SHIPLAP

- - -

---

Standard Patterns

3

Western Wood Products Association

STANDARD PATTERNS

CONTENTSPaneling . . . . . . . . . . . . . . . . . 4

Paneling and Siding . . . . . . . . 6

Siding . . . . . . . . . . . . . . . . . . . 7

Ceiling . . . . . . . . . . . . . . . . . 12

Ceiling and Partition . . . . . 13

Partition . . . . . . . . . . . . . . . . 14

Shiplap . . . . . . . . . . . . . . . . . 15

Tongued & Grooved . . . . . . . 16

Decking . . . . . . . . . . . . . . . . . 16

Decking and Flooring . . . . . 20

Flooring . . . . . . . . . . . . . . . . 21

Corn Cribbing . . . . . . . . . . . . 22

Grooved Roofing . . . . . . . . . . 22

Patent Lath . . . . . . . . . . . . . . 22

Stile . . . . . . . . . . . . . . . . . . . . 22

Sill . . . . . . . . . . . . . . . . . . . . . 22

Jamb . . . . . . . . . . . . . . . . . . . 22

Ogee Batten . . . . . . . . . . . . . 23

Casket Stock . . . . . . . . . . . . 23

Beaded Shelving . . . . . . . . . 23

Unseasoned Tongued& Grooved . . . . . . . . . . . . . . 24

Unseasoned Shiplap . . . . . . . 24

Coverage Estimator . . . . . . . 27

Siding SpecificationChecklist . . . . . . . . . . . . . . 27

Grade SelectorChart . . . . . . . . . . . . back cover

STANDARD PATTERNSLUMBER ABBREVIATIONS

BEV BeveledBEV SDG Beveled sidingBS Both sidesCB Center BeadedCB1S Center bead one sideCB2S Center bead two sidesCG Center grooveCG2E Center groove two edgesCLG CeilingCM Center matchedCS Caulking seamCSG CasingCV Center VeeCV1S Center vee one sideCV2S Center vee two sidesD2S Dressed two sidesD4S Dressed four sidesDB CLG Double-beaded ceilingDB PART Double-beaded partitionDBL T&G Double tongued & groovedD&CM Dressed & center matchedDKG DeckingD/S,DS Drop SidingD S/L Double shiplapDVJM Double vee-jointed matchingD&M Dressed and matchedE EdgeEB1S Edge bead one sideEB2S Edge bead two sidesE&CB2S Edge & center bead two sidesEV1S Edge vee one sideEV2S Edge vee two sidesE&CV1S Edge & center vee one sideE&CV2S Edge & center vee two sidesEE Eased EdgesEG Edge (vertical) grainEM End matchedEV Edge veeFE Feathered edgeFG Flat (slash) grainFLG FlooringF&G Feathered & groovedG1E Grooved one edgeHB Hollow backMG Mixed GrainN Nosed

N1E Nosed one edgeN2E Nosed two edgesOS One sidePAT PatternP1E Planed one edgeP2E Planed two edgesP1S Planed one sideP2S Planed two sidesP4S Planed four sidesP1S1E Planed one side one edgeP2S1E Planed two sides one edgeP1S2E Planed one side two edgesPAR Planed all 'roundPART PartitionPE Planed edgePPE Planed plain edgePSE Planed square edgePSJ Planed and square jointedPTG Planed tongued and groovedR&B Rabbet & beadS Side, SurfacedSB1S Single bead one sideSDG SidingSG Slash (flat) grainS/L, or SL ShiplapSQ SquareSTPG SteppingS&E Side & edge (surfaced on)S1E Surfaced one edgeS2E Surfaced two edgesS1S Surfaced one sideS4S Surfaced four sidesS1S&CM Surfaced one side & center matchedS2S&CM Surfaced two sides & center matchedS4S&CS Surfaced four sides & caulking seamS1S1E Surfaced one side one edgeS1S2E Surfaced one side two edgesS2S1E Surfaced two sides one edgeS4SEE Surfaced four sides eased edgesT&G Tongued and groovedTG&B Tongued, grooved, and beadedTG&V Tongued, grooved, and vee-jointedT1E Tongued one edgeUE UnedgedVG Vertical grainVJM Vee-joint matching

©WWPA 2001

All patterns depicted in thispublication are drawn to scaleand printed at 70% actual size.

4

Paneling

WP-3

- - -

WP-5

- - -

WP-1

- - -

WP-8

- - -

WP-10

-- -

WP-2

- - -

5

Paneling

-

WP-20

- -

WP-13

- - -

WP-18

- - -

WP-14

- - -

WP-16

- - -

WP-12

- - -

6

Panelingand Siding

WP-11

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WP-2 WP-4

- --

-

WP-9

--

WP-6

- - -

WP-7

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WP-4

- - -

7

Siding

BEVELED SIDING

- -

CHANNEL RUSTICSIDING

- --

DOLLYVARDEN

SIDING

- - -

(THICK) DOLLY VARDEN SIDING

- - -

COLONIAL

(OR BUNGALOW)SIDING

- - -

8

Siding

6" LOG CABIN SIDING

8" LOG CABIN SIDING

10" LOG CABIN SIDING

9

Siding

101

- - -

105

- --

-

104

--

103

- --

102

- --

10

Siding

106

- --

116

- - -

115

110

- - -

109

- - -

11

Siding

117

V-CV RUSTIC

- - -

V RUSTIC

- - -

124

118

12

5/8x4 V-CEILING

Ceiling

1x6 EV CEILING(S2S & CM EV1S)

1x6 E & CV CEILING(S2S & CM E&CV1S)

5/8x4 E & CB CEILING

5/8x4 E & CV CEILING

1x6 E & CB CEILING(S2S & CM E & CB1S)

13

Ceiling andPartition

1x6 E & CV PARTITION(S2S & CM E & CV2S)

1x4 V-PARTITION

1x6 E & CB PARTITION(S2S & CM E & CB2S)

5/8x4 EB CEILING

1x4-E & CV CEILING

1x4 E & CB CEILING

14

Partition

5/8x4 E & CB PARTITION

1x4 E & CV PARTITION

1x4 E & CB PARTITION

1x4 - BOSTON PATTERN

5/8x4 E & CV PARTITION

1x4 BEADED PARTITION

15

Shiplap - - - -

SHIPLAP - 3/8 LAP

SHIPLAP - 1/2 LAP

- - - -

-

3 SHIPLAP

- -

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2 SHIPLAP

- - -

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2 SHIPLAP EV1S

- -

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-

16

Tongued & Grooved,Decking

S2S & CM 1/4 T&G

- - - -

S2S & CM 3/8 T&G

- - - -

SPECIAL D&MFLOORING

- - -

2 S2S CM EV1S DECKING

- - -

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2 CHANNEL DECKING

17

Decking

3"x6" WP-305-a

3"x6" WP-305-b

4"x6" WP-405-a

18

Decking

4"x6" WP-405-b

4"x6" WP-405-c

3"x6" WP-305-c

19

Decking

3"x6" WP-305-d

4" DECKING WP-405-e

4"x6" WP-405-d

20

Decking and Flooring

3" DECKING WP-305-e

1 1/4 FLOORING D&M

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6/4 FLOORING D&M

-

- -

- - -

--

5/4 FLOORING D&M

-

- -

- -

-

-

-

21

Flooring

2 FLOORING D&M

- - -- - -

2 FLOORING S2S & CM

- - -

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3 FLOORING D&M

- - -- - -

-

3 FLOORING S2S & CM

- -

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22

Corn Cribbing

Stile

Sill

Jamb

GroovedRoofing

PatentLath

CORN CRIBBING

GROOVED ROOFING

- -

PATENT LATH

1x5 PULLEY STILE

2x8 SILL

2x8 JAMB

23

Ogee Batten

BeadedShelving

Casket Stock

OGEE BATTEN

CASKET STOCK S3S T1E

-

-

CASKET STOCK S3S G1E

-

BEADED SHELVING 2 BEAD

- -

BEADED SHELVING 3 BEAD

- -

24

UnseasonedTongued & Grooved

CM 1/4 T&G

- - - -

CM 3/8 T&G

- - - -

2"x4" -6" -8" -10" -12" CM

- - - -

3"x4" -6" -8" -10" -12" CM

- - - -

25

Unseasoned Tongued & Grooved

Unseasoned Shiplap

2"x6" -8" -10" -12" CM EV1S

- - -

3'x6" -8" -10" -12" CM EV1S

- - -

SHIPLAP 3/8 LAP

- - - -

SHIPLAP 1/2 LAP

- - - -

26

UnseasonedShiplap

2"x4" -6" -8" -10" -12" SHIPLAP

- - - -

2"x6" -8" -10" -12"SHIPLAP EV1S

- - -

3"x4" -6" -8" -10" -12"SHIPLAP

- - - -

3"x6" -8" -10" -12"SHIPLAP EV1S

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27

Coverage Calculations

Siding and paneling areusually sold either by the lineal(running) foot or by the boardfoot.

To simplify cost and cover-age estimations, select theappropriate factor from thetable at right according to howthe material is priced. The fac-tors provided in the table canbe used to calculate theamount of siding required eitherin lineal feet or in board feet.

In either case, the squarefootage of the area to becovered is calculated first, thenmultiplied by the appropriatefactor.

Procedure:

A) Calculate the square footage in walls: length x width = sq. ft.

B) Calculate, and then subtract,the square footage ofopenings. Now add 10% fortrim and waste.

C) Multiply the result by eitherthe factor for lineal feet orthe factor for board feet.

D) Multiply the total footagerequired by price.

Additional InformationAdditional information and

titles referenced in this publica-tion are available for purchasefrom WWPA.

For a full description of tech-nical publications available anda printable order form, go tothe WWPA Internet site atwww.wwpa.org.

You also can receive anorder form via fax through theWWPA Fax Delivery Service bycalling 732-544-2876 andfollowing the instructions.

COVERAGE ESTIMATOR

Width Factor for Factor forNominal Exposed Lineal Board

Pattern Width Dressed Face Feet1 Feet2

4 3¹�₂ 2¹�₂ 4.8 1.60Bevel & 6 5¹�₂ 4¹�₂ 2.67 1.33Bungalow 8 7¹⁄₄ 6¹⁄₄ 1.92 1.28

10 9¹⁄₄ 8¹⁄₄ 1.45 1.21

4 3¹�₂ 3 4.0 1.33Dolly 6 5¹�₂ 5 2.4 1.2Varden 8 7¹⁄₄ 6 ³⁄₄ 1.78 1.19

10 9¹⁄₄ 8 ³⁄₄ 1.37 1.1412 11¹⁄₄ 10 ³⁄₄ 1.12 1.12

4 3 ³⁄₈ 3¹⁄₈ 3.84 1.28Drop, T&G and 6 5 ³⁄₈ 5¹⁄₈ 2.34 1.17Channel Rustic 8 7¹⁄₈ 6 ⁷⁄₈ 1.75 1.16

10 9 ¹⁄₈ 8 ⁷⁄₈ 1.35 1.13

6 5 ⁷�₁₆ 4¹⁵�₁₆ 2.43 2.43Log Cabin 8 7¹⁄₈ 6 ⁵�₈ 1.81 2.42

10 9¹⁄₈ 8 ⁵�₈ 1.39 2.32

2 1¹�₂

4 3¹�₂

Boards 6 5¹�₂

8 7¹⁄₄

10 9¹⁄₄

The exposed face width will vary depending onsize selected and on how the boards-and-battensor boards-on-boards are applied. Minimum over-lap is ¹�₂". Determine the exposed face, then referto footnotes to calculate factor.

1 Lineal Foot Factor is derived by dividing 12" by the exposed face width.2 Board Foot Factor is derived by dividing the nominal width by the exposed face width and is based on

nominal 1" stock, except log cabin. Log cabin is based on 2" thickness. For nominal 1¹�₂" log cabin, multiplyby .75.

Note: Factors do not include any allowance for trim or waste and do not apply to diagonal installations. A10% allowance (for trim and waste) should be added to the square footage required before the factors areused. Refer to Procedure at left.

Checklist for a Siding Material Specification

■■ Select species suited to the project.■■ List grade names, paragraph numbers and rules-writing agency. (Refer

to Grade Selector chart on back cover).■■ Specify surface texture for exposed face.■■ Specify moisture content suited to the project.■■ If gradestamped, specify lumber to be stamped on back or ends.

(WWPA’s Specifying Lumber [A-2] offers additional information.) ■■ Specify VG (vertical grain) if appropriate and available.■■ Specify pattern and size (WWPA’s Natural Wood Siding [TG-8] and

Paneling Basics [A-3] offer additional information.)

WESTERN WOOD PRODUCTS ASSOCIATION522 SW Fifth Avenue, Suite 500Portland, OR 97204-2122tel: 503-224-3930 e-mail: info@wwpa.orgfax: 503-224-3934 web site: www.wwpa.org

G-16/1606e/Rev.4-01/5000

EADERSHIP. ERVICE. ALUE.L S V

GRADE SELECTOR CHART-ALL SPECIES

GRADES Grade Rule ParagraphWESTERN SPECIES CEDAR Numbers for

Western & Reference & Specifying

Selects1 Finish Canadian WWPA2 WCLIB3 NLGA4

Clear Heart5 20.11 102-b 200aB&Better (IWP Supreme) 10.11 – –

A Grade5 20.12 102-c 200bC Select5 (IWP Choice) 10.12 – –

Superior 10.51 – –D Select5 (IWP Quality) 10.13 – –

Prime 10.52 – –B Grade 20.13 102-d 200c

Clear VG Heart5 21.11 106-aa 201aA Bevel5 21.12 106-a 201b

Superior Bevel 16.11 – –B Bevel 21.13 106-b 201cRustic – – 201d

C Bevel 21.14 106-c 201e

Prime Bevel 16.12 – –Select Knotty6 – – 205aQuality Knotty6 – – 205b

Commons1 Alternate CedarBoards

1 Common (IWP Colonial) 30.112 Common (IWP Sterling) Select Merch. 30.12 118-a 114a

Construction 118-b 118-b 114bSelect Knotty6 – 111-e 204aQuality Knotty6 – 111-f 204b

3 Common (IWP Standard) 30.13 – –Standard 118-c 118-c 114c

4 Common (IWP Utility) Utility 30.14 118-d 114d 5 Common (IWP Economy) Economy 30.15 118-e 114e

All P

atte

rns

All P

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rns

Knot

tyPr

emiu

mKn

otty

Gra

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Prem

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Gra

des

Addi

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1 Equivalent grades, under the same paragraph numbers in WWPA Rules, are available in Idaho White Pine. Refer to Western LumberGrading Rules.

2 Western Wood Products Association’s Western Lumber Grading Rules.3 West Coast Lumber Inspection Bureau’s West Coast Lumber Standard Grading Rules.4 National Lumber Grades Authority’s Standard Grading Rules for Canadian Lumber.5 Some clear grades may be specified VG (vertical grain). Common practice is to ship orders as a combination of vertical and flat grain,

unless specified otherwise.6 The widely used marketing term, “STK” usually describes a combination of Select Knotty and Quality Knotty, sometimes marketed with

approximately 15% of the order in Quality Knotty.The grade names in bold face type are the most widely available grades. These are often specified as a grade combinationthat includes some portion of material in the next higher grade; i.e. C&Btr Select, D&Btr Select, A&Btr Cedar, 2&Btr Common, 3&BtrCommon or Std&Btr (Standard & Better).

GeneralCategories(Note that thereare additionalgrades for bevelpattern.)

Western Lumber Grades