Table 10-1.  Summary of sizes, packing rules, running inches, and shipping weights for shingles.



Grade

Shingle
thickness (in)
(green)a

Approximate
bundle
thickness (in)a

Courses
per
bundleb


Running inches
per 4-bundle squareb


Shipping weight
per square (lb)

  
   

Green

Dry

  

Green

Dry

Roof 4 bdls.

  

No. 1—24" (Royals)

4 Butts = 2"         (0.50)c

6-1/2 to 7

6-1/3 to 6-3/4

13 / 14

1,998

1,920

192

  

No. 1—18" (Perfections)

5 Butts = 2-1/4"  (0.45)

8-1/8

7-7/8

18 / 18

2,664

2,620

158

  

No. 1—16" (Fivex 5X)

5 Butts = 2"         (0.40)

8

7-3/4

20 / 20

2,960

2,880

144

  

No. 2 Red Label—24" (16" Clear)

4 Butts = 2"         (0.50)

6-1/2 to 7

6-1/3 to 6-3/4

13 / 14

1,998

1,920

192

  

No. 2 Red Label—18" (11" Clear)

5 Butts = 2-1/4"  (0.45)

8-1/8

7-7/8

18 / 18

2,664

2,620

158

  

No. 2 Red Label—16" (10" Clear)

5 Butts = 2"         (0.40)

8

7-3/4

20 / 20

2,960

2,880

144

  

No. 3—24" (10" Clear)

4 Butts = 2"         (0.50)

6-1/4 to 6-3/4

6 to 6-1/2

13 / 14

1,998

1,920

192

  

No. 3—18" (6" Clear)

5 Butts = 2-1/4"  (0.45)

7-7/8

7-5/8

18 / 18

2,664

2,620

158

  

No. 3—16" (6" Clear)

5 Butts = 2"         (0.40)

7-3/4

7-1/2

20 / 20

2,960

2,880

144

  


Dimensions of
No. 1 and Red Label grades

Shingle
thicknesses
(green)


Width
(green)

Courses
per
bundle

Additional
cross
shingles


Bundles
per square

Pieces
per bundle


Shipping weight
per square (lb)

  
         

Roof

  

Roof 4 bdls.

  

                    24" x 16"

4 Butts = 2"         (0.50)

6"

14 / 14

  

4

84

192

  

                    18" x 5"

5 Butts = 2-1/4"  (0.45)

5"

16 / 16

8

4

136

158

  

                    18" x 6"

5 Butts = 2-1/4"  (0.45)

6"

17 / 18

8

4

113

158

  

                    16" x 5"

5 Butts = 2"         (0.40)

5"

18 / 18

8

4

152

144

  

                    16" x 6"

5 Butts = 2"         (0.40)

6"

19 / 20

8

4

125

144

  

aA small amount is allowed for shrinkage from green to dry wood. See grading rules for specific grade measurements, and also note Dry columns, this table.

bNo specific number of random width shingles are packed in a bundle; the minimum content is determined by actual running inches of wood contained (combined width of shingles laid side by side).

cAverage butt thickness.

Table 10-1.  Continued

Covering capacities per bundle in square feet of the various sized shingles

Exposure
(in)

16"
shingles

18"
shingles

24"
shingles

Exposure
(in)

16"
shingles

18"
shingles

24"
shingles

Exposure
(in)

16"
shingles

18"
shingles

24"
shingles

  

3-1/2

17-1/2

15-1/2

7-1/2

37-1/2

34

25

11-1/2

57-1/2

52

38

  

4

20

18

8

40

36

26-1/2

12

60

54-1/2

40

  

4-1/2

22-1/2

20

8-1/2

42-1/2

38-1/2

28

12-1/2

56-1/2

41-1/2

  

5

25

22-1/2

9

45

40-1/2

30

13

59

43

  

5-1/2

27-1/2

25

9-1/2

47-1/2

43

31-1/2

13-1/2

61

45

  

6

30

27

20

10

50

45

33

14

63-1/2

46-1/2

  

6-1/2

32-1/2

29-1/2

21-1/2

10-1/2

52-1/2

47-1/2

35

14-1/2

48

  

7

35

31-1/2

23

11

55

50

36-1/2

15

50

  

Formula to figure covering capacity per bundle (based on green measurements):

(

Total number of courses in both ends of bundle

)


* 18.5

(

Running
inches
in each course

)


*

(

Number of inches
exposed
to weather

)


 / 144 = number of square feet that 1 bundle will cover.

For example: Find the covering capacity of one bundle of 16 inch shingles exposed 5 inches to the weather:

    

(20 + 20)  *  (18.5  *  5)
  
3,700
    
=
= 25.7 square feet
144
  
144
    

                                                                                                                                                          ___________________________________________________________

                                                                                                                                                                   4             bundles—16" = 1 square at 5"        exposure

                                                                                                                                                                   4-1/2      bundles—16" = 1 square at 4-1/2"exposure

                                                                                                                                                                   5             bundles—16" = 1 square at 5"        exposure

                                                                                                                                                                ___________________________________________________________

Source:  Red Cedar Shingle and Handsplit Shake Bureau.