Catalog

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Board Feet Per Piece

6 ⁄

4 x12

6x6

1x2 1x3 1x4 1x5 1x6

1x10 1x12 1x14

6x8

1x8

6x10

6x12

4x6 3x8

5 ⁄

4 x6

5 ⁄

4 x8

4x10 4x12

4x8

5 ⁄ 4 x12 4x4

5 ⁄

4 x4

6 ⁄

4 x6

6 ⁄

4 x8

3x10

6 ⁄

4 x10

6 ⁄

4 x4

3x6

3x12

8x8

8x10 8x12

2x4

2x6

2x12

2x8

2x2

2x10

Length 8'

48 60 72 84 96

53.3 66.6 80 93.3 106.6 120 133.3 146.6 160

40 50 60 70 80 90

42.6 53.3 64 74.6 85.3 96 106.6 117.3 128

64 80 96

12 15 18 21 24 27 30 33 36

13.3 16.6 20 23.3 26.6 30 33.3 36.6 40

16 20 24 28 32 36 40 44 48

20 25 30 35 40 45 50 55 60

21.3 26.6 32 37.3 42.6 48 53.3 58.6 64

24 30 36 42 48 54 60 66 72

26.6 33.3 40 46.6 53.3 60 66.6 73.3 80

32 40 48 56 64 72 80 88 96

6.6 8.3 10

8 10 12 14 16 18 20 22 24

9.3 11.6 14 16.3 18.6 21 23.3 25.6 28

10 12.5 15 17.5 20 22.5 25 27.5 30

1.3 1.6 2 2.3 2.6 3 3.3 3.6 4

2 2.5 3 3.5 4 4.5 5 5.5 6

2.6 3.3 4 4.6 5.3 6 6.6 7.3 8

3.3 4.1 5 5.8 6.6 7.5 8.3 9.1 10

4 5 6 7 8 9

5 6.2 7.5 8.7 10

5.3 6.6 8 9.3 10.6 12 13.3 14.6 16

6 7.5 9 10.5 12 13.5 15 16.5 18

10.6 13.3 16 18.6 21.3 24 26.6 29.3 32

10' 12' 14' 16' 18' 20' 22' 24'

112 128 144 160 176 192

11.6 13.3 15 16.6 18.3 20

108 120 132 144

11.2 12.5 13.7 15

100 110 120

10 11 12

BOARD FEET CONVERSIONS The basic unit of measure for lumber cut from a log is the board foot. A board foot contains 144 cubic inches of volume. It is generally easiest to compare any piece of lumber to a board foot of lumber measuring one (1) inch thick, twelve (12) inches wide and one (1) foot long. Lumber under one (1) inch thick is generally considered the same as one (1) inch thick for estimating purposes. To calculate the BOARD FEET in a given piece or amount of lumber, use the formula:

To convert linear feet to board feet:

To convert board feet to linear feet:

T" x W" x L' 12

12 T" x W"

= Bd. ft.

x Bd. ft = Linear ft.

DIMENSION LUMBER

GRADE STAMPS Lumber is stamped with a grademark to show its grade. The American Lumber Standard Board of Review sets the standards and quali¡es grading agencies. Each grade stamp shows the name or symbol of the agency, the number of the mill, the species group, the grade and the classi¡cation S-DRY or S-GRN. S-DRY indicates that the lumber has a moisture content of 19% or less after being kiln dried. S-GRN has a moisture content greater than 19%. The following is a facsimile of a grade stamp.

Grades and Uses

Nominal Size (in)

Grade

Principal Uses Used in most construction. High strength, sti“ness, good appearance. Preferred for trusses, rafters and joists. Used when high strength and appearance are not important. Common mix used in general framing. Has less strength and shorter spans than No. 2 & Btr. structural light framing. Used most where high strength is not important - studs & plates in partition walls, blocking and braces. Temporary or low cost construction where strength and appearance are not important.

Grade Mix

2 to 4" thick 2" and wider

Select Structural No. 1 No. 2

No. 2 & Better (No. 2 & Btr.)

No. 3

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Standard & Better (Std. & Btr.)

2 to 4" thick 2 to 4" wide

Construction (Std. & Btr.)

Utility

2 to 4" wide

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Economy Stud (Design values not assigned)

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2 to 6" wide

Stud

Most common grade used for studs.

Used most economically where high strength is not important.

Economy Stud (Design values not assigned)

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1. For ease in grade sorting, the higher grades are combined and sold as a grade mix. Pieces in the grade mix are still individually grade stamped. For additional information on wood species used in construction, visit the Canadian Wood Council @ www.cwc.ca , the Southern Pine Marketing Council @ www.southernpine.com or the Western Wood Products Association @ www.wwpa.org

a. WWPA Certi cation Mark: Certi¡es Association quality supervision. is a registered trademark. b. Mill Identi cation: Firm name, brand or assigned mill number. WWPA can be contacted to identify an individual mill whenever necessary. c. Grade Designation: Grade name, number or abbreviation. d. Species Identi cation: Indicates species by individual species or species combination. e. Condition Of Seasoning: Indicates condition of seasoning at time of surfacing

MC-15 - 15% maximum moisture content S-DRY - 19% maximum moisture content S-GRN - over 19% moisture content (unseasoned)

Publisher is not liable for errors or omissions in this book. Always check your local building codes.

71

January 2025