9.40.3.4. Stud Size and Spacing (1) In a farm building of low human occupancy, the size and spacing of wood studs shall conform to Tables 9.40.3.4.U. to 9.40.3.4.W. for the loads shown in the Tables. Table 9.40.3.2.A. Post Sizes for Diaphragm-Braced Farm Buildings of Low Human Occupancy Forming Part of Article 9.40.3.2.  Building Width, m

Wall   Height, m

Spruce – Pine – Fir, No. 1, Dressed (Post and Timber Grades)


For Wind Loading q10 ≤ 0.30 kPa


Post Spacing,   2.4 m

Post Spacing,   3.6 m

Post Spacing,   4.8 m


Roof Load, kPa

Roof Load, kPa

Roof Load, kPa


1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3


9.14

≤ 3.0

A

A

A

A

A

A

A

A

A

A

A

A

B

B

B


3.6

A

A

A

A

A

A

A

B

B

B

B

B

B

C

C


4.2

B

B

B

B

B

B

B

B

C

C

B

C

C

C

C


4.8

B

B

B

B

B

B

C

C

C

C

C

C

C

C

C


6.0

C

C

C

C

C

C

C

C

D

D

C

D

D

—

—


12.1

≤ 3.0

A

A

A

A

A

A

A

A

B

B

A

B

B

B

C


3.6

A

A

A

A

B

A

B

B

B

C

B

B

C

C

C


4.2

B

B

B

B

B

B

B

C

C

C

C

C

C

C

C


4.8

B

B

B

C

C

C

C

C

C

C

C

C

D

D

D


6.0

C

C

C

C

C

C

C

D

D

—

D

D

—

—

—


15.2

≤ 3.0

A

A

A

A

A

A

A

B

B

B

B

B

B

C

C


3.6

A

A

A

B

B

B

B

B

C

C

B

C

C

C

C


4.2

B

B

B

B

C

B

C

C

C

C

C

C

C

D

D


4.8

B

B

C

C

C

C

C

C

C

D

C

C

D

D

—


6.0

C

C

C

C

D

C

D

D

—

—

D

—

—

—

—


18.2

≤ 3.0

A

A

A

B

B

A

B

B

B

C

B

B

C

C

C


3.6

A

A

B

B

B

B

B

C

C

C

C

C

C

C

D


4.2

B

B

B

C

C

C

C

C

C

C

C

C

D

D

D


4.8

B

C

C

C

C

C

C

C

D

D

C

D

D

—

—


6.0

C

C

C

D

D

D

D

—

—

—

—

—

—

—

—


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 Legend — Post Sizes A = 89 mm x 140 mm B = 140 mm x 140 mm C = 140 mm x 184 mm D = 184 mm x 184 mm Notes to Table 9.40.3.2.A.: (1) Designs are based on load combinations of total roof load and wind load acting at the same time on a closed building. (2) Posts shall be oriented with the long dimension parallel to the building width. (3) Bracing systems shall be specified by a competent designer. (4) Posts shall be situated on footings and shall be anchored to prevent wind uplift. (5) Posts shall be constrained against lateral movement at ground level and at the footing. Concrete floor, splash-rail and uplift anchor help to meet this condition. (6) Post designs are based on partial fixity condition due to embedment in soil. (7) Footing excavations should be backfilled with parent material unless otherwise specified by a competent designer. Table 9.40.3.2.B. Post Sizes for Diaphragm-Braced Farm Buildings of Low Human Occupancy Forming Part of Article 9.40.3.2.  Building Width, m

Wall   Height, m

Spruce – Pine – Fir, No. 1, Dressed (Post and Timber Grades)


For Wind Loading q10 ≤ 0.45 kPa


Post Spacing,   2.4 m

Post Spacing,   3.6 m

Post Spacing,   4.8 m


Roof Load, kPa

Roof Load, kPa

Roof Load, kPa


1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3


9.14

≤ 3.0

A

A

A

A

A

A

A

A

A

B

A

B

B

B

B


3.6

A

A

A

A

A

A

B

B

B

B

B

B

C

C

C


4.2

B

B

B

B

B

B

B

C

C

C

C

C

C

C

C


4.8

B

B

B

C

C

C

C

C

C

C

C

C

C

D

D


6.0

C

C

C

C

C

C

D

D

D

D

D

—

—

—

—


12.1

≤ 3.0

A

A

A

A

A

A

A

B

B

B

B

B

B

C

C


3.6

A

A

A

B

B

B

B

B

C

C

C

C

C

C

C


4.2

B

B

B

B

C

C

C

C

C

C

C

C

C

C

D


4.8

B

C

C

C

C

C

C

C

C

C

C

D

D

D

—


6.0

C

C

C

C

D

D

D

D

—

—

—

—

—

—

—


15.2

≤ 3.0

A

A

A

A

B

A

B

B

B

C

B

B

C

C

C


3.6

A

A

B

B

B

B

B

C

C

C

C

C

C

C

D


4.2

B

B

B

C

C

C

C

C

C

C

C

C

D

D

D


4.8

B

C

C

C

C

C

C

C

D

D

C

D

D

—

—


6.0

C

C

C

D

D

D

D

—

—

—

—

—

—

—

—


18.2

≤ 3.0

A

A

A

B

B

B

B

B

C

C

B

C

C

C

C


3.6

A

B

B

B

C

B

C

C

C

C

C

C

C

D

D


4.2

B

B

C

C

C

C

C

C

C

D

C

D

D

D

—


4.8

C

C

C

C

C

C

C

D

D

—

D

D

—

—

—


6.0

C

C

D

D

—

D

—

—

—

—

—

—

—

—

—


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 Legend — Post Sizes A = 89 mm x 140 mm B = 140 mm x 140 mm C = 140 mm x 184 mm D = 184 mm x 184 mm Notes to Table 9.40.3.2.B.: (1) Designs are based on load combinations of total roof load and wind load acting at the same time on a closed building. (2) Posts shall be oriented with the long dimension parallel to the building width. (3)Bracing systems shall be specified by a competent designer. (4) Posts shall be situated on footings and shall be anchored to prevent wind uplift. (5) Posts shall be constrained against lateral movement at ground level and at the footing. Concrete floor, splash-rail and uplift anchor help to meet this condition. (6) Post designs are based on partial fixity condition due to embedment in soil. (7) Footing excavations should be backfilled with parent material unless otherwise specified by a competent designer. Table 9.40.3.2.C. Post Sizes for Knee-Braced Farm Buildings of Low Human Occupancy Forming Part of Article 9.40.3.2.  Building Width,   m

Wall   Height   m

Spruce — Pine —Fir, No. 1, Dressed (Post and Timber Grades)


For Wind Loading q10 ≤ 0.30 kPa


Post Spacing,   2.4 m

Post Spacing,   3.6 m

Post Spacing,   4.8 m


Roof Load, kPa

Roof Load, kPa

Roof Load, kPa


1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3


9.14

≤ 3.0

A

A

A

A

A

A

A

A

B

B

A

B

B

B

C


3.6

A

A

A

A

B

A

B

B

B

C

B

C

C

C

C


4.2

B

B

B

B

B

B

C

C

C

C

C

C

C

C

C


4.8

C

C

C

C

C

C

C

C

C

C

C

C

C

D

D


6.0

C

C

C

C

C

C

D

D

D

—

D

—

—

—

—


12.1

≤ 3.0

A

A

A

A

A

A

A

B

B

B

B

B

C

C

C


3.6

A

A

B

B

B

B

B

C

C

C

C

C

C

C

C


4.2

B

B

B

C

C

C

C

C

C

C

C

C

C

D

D


4.8

C

C

C

C

C

C

C

C

D

D

C

D

D

—

—


6.0

C

C

C

D

D

D

D

—

—

—

—

—

—

—

—


15.2

≤ 3.0

A

A

A

B

B

A

B

B

C

C

B

C

C

C

C


3.6

A

B

B

B

C

B

C

C

C

C

C

C

C

C

D


4.2

B

B

C

C

C

C

C

C

C

D

C

C

D

D

—


4.8

C

C

C

C

C

C

C

D

D

—

D

D

—

—

—


6.0

C

C

D

D

—

D

—

—

—

—

—

—

—

—

—


18.2

≤ 3.0

A

A

B

B

B

B

B

C

C

C

B

C

C

C

D


3.6

B

B

B

C

C

C

C

C

C

C

C

C

C

D

D


4.2

B

C

C

C

C

C

C

C

D

D

C

D

D

—

—


4.8

C

C

C

C

D

C

D

D

—

—

D

—

—

—

—


6.0

C

D

D

—

—

—

—

—

—

—

—

—

—

—

—


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 Legend — Post Sizes A = 89 mm x 140 mm B = 140 mm x 140 mm C = 140 mm x 184 mm D = 184 mm x 184 mm Notes to Table 9.40.3.2.C.: (1) Designs are based on load combinations of total roof load and wind load acting at the same time on a closed building. (2) Posts shall be oriented with the long dimension parallel to the building width. (3) Bracing systems shall be specified by a competent designer. (4) Posts shall be situated on footings and shall be anchored to prevent wind uplift. (5) Posts shall be constrained against lateral movement at ground level and at the footing. Concrete floor, splash-rail and uplift anchor help to meet this condition. (6) Post designs are based on partial fixity condition due to embedment in soil. (7) Footing excavations should be backfilled with parent material unless otherwise specified by a competent designer. Table 9.40.3.2.D. Post Sizes for Knee-Braced Farm Buildings of Low Human Occupancy Forming Part of Article 9.40.3.2.  Building Width, m

Wall Height, m

Spruce – Pine – Fir, No. 1, Dressed (Post and Timber Grades)


For Wind Loading q10 ≤ 0.45 kPa


Post Spacing,   2.4 m

Post Spacing,   3.6 m

Post Spacing,   4.8 m


Roof Load, kPa

Roof Load, kPa

Roof Load, kPa


1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3


9.14

≤ 3.0

A

A

A

A

A

A

A

B

B

B

B

B

B

C

C


3.6

A

A

A

B

B

B

B

B

C

C

C

C

C

C

C


4.2

B

B

B

B

C

C

C

C

C

C

C

C

C

C

D


4.8

C

C

C

C

C

C

C

C

C

D

C

D

D

D

—


6.0

C

C

C

C

D

D

D

—

—

—

—

—

—

—

—


12.1

≤ 3.0

A

A

A

A

B

A

B

B

B

C

B

B

C

C

C


3.6

B

B

B

B

B

B

C

C

C

C

C

C

C

C

C


4.2

B

B

C

C

C

C

C

C

C

C

C

C

D

D

D


4.8

C

C

C

C

C

C

C

D

D

D

D

D

—

—

—


6.0

C

C

D

D

D

D

—

—

—

—

—

—

—

—

—


15.2

≤ 3.0

A

A

B

B

B

B

B

B

C

C

B

C

C

C

C


3.6

A

B

B

C

C

C

C

C

C

C

C

C

C

D

D


4.2

B

C

C

C

C

C

C

C

D

D

C

D

D

—

—


4.8

C

C

C

C

C

C

D

D

D

—

D

—

—

—

—


6.0

C

D

D

—

—

—

—

—

—

—

—

—

—

—

—


18.2

≤ 3.0

A

A

B

B

B

B

B

C

C

C

C

C

C

C

D


3.6

B

B

C

C

C

C

C

C

C

D

C

C

D

D

—


4.2

C

C

C

C

C

C

C

D

D

D

D

D

—

—

—


4.8

C

C

C

D

D

C

D

—

—

—

D

—

—

—

—


6.0

D

D

—

—

—

—

—

—

—

—

—

—

—

—

—


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 Legend — Post Sizes A = 89 mm x 140 mm B = 140 mm x 140 mm C = 140 mm x 184 mm D = 184 mm x 184 mm Notes to Table 9.40.3.2.D.: (1)Designs are based on load combinations of total roof load and wind load acting at the same time on a closed building. (2)Posts shall be oriented with the long dimension parallel to the building width. (3)Bracing systems shall be specified by a competent designer. (4)Posts shall be situated on footings and shall be anchored to prevent wind uplift. (5)Posts shall be constrained against lateral movement at ground level and at the footing. Concrete floor, splash-rail and uplift anchor help to meet this condition. (6)Post designs are based on partial fixity condition due to embedment in soil. (7)Footing excavations should be backfilled with parent material unless otherwise specified by a competent designer. Table 9.40.3.2.E. Post Sizes for Diaphragm-Braced Farm Buildings of Low Human Occupancy Forming Part of Article 9.40.3.2.  Building Width, m

Wall Height, m

Ungraded Lumber, Full-Dimensioned


For Wind Loading q10 ≤ 0.30 kPa


Post Spacing,   2.4 m

Post Spacing,   3.6 m

Post Spacing,   4.8 m


Roof Load, kPa

Roof Load, kPa

Roof Load, kPa


1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3


9.14

≤ 3.0

A

A

A

A

A

A

A

A

B

B

A

B

B

C

C


3.6

A

A

A

A

B

A

B

B

B

C

B

C

C

C

C


4.2

B

B

B

B

B

B

B

C

C

C

C

C

C

C

D


4.8

B

B

B

B

C

C

C

C

C

C

C

C

C

D

D


6.0

C

C

C

C

C

C

C

D

D

D

D

D

—

—

—


12.1

≤ 3.0

A

A

A

A

B

A

B

B

B

C

B

B

C

C

C


3.6

A

A

B

B

B

B

B

C

C

C

C

C

C

C

D


4.2

B

B

B

B

C

B

C

C

C

C

C

C

D

D

D


4.8

B

B

C

C

C

C

C

C

C

D

C

D

D

D

—


6.0

C

C

C

C

D

C

D

D

—

—

D

—

—

—

—


15.2

≤ 3.0

A

A

A

B

B

B

B

C

C

C

B

C

C

D

D


3.6

A

B

B

B

C

B

C

C

C

C

C

C

D

D

D


4.2

B

B

C

C

C

C

C

C

D

D

C

D

D

—

—


4.8

B

C

C

C

C

C

C

D

D

D

D

D

—

—

—


6.0

C

C

C

D

D

D

D

—

—

—

—

—

—

—

—


18.2

≤ 3.0

A

A

B

B

C

B

B

C

C

D

C

C

D

D

—


3.6

A

B

B

C

C

C

C

C

D

D

C

D

D

—

—


4.2

B

C

C

C

C

C

C

D

D

D

C

D

—

—

—


4.8

C

C

C

C

D

C

D

D

—

—

D

—

—

—

—


6.0

C

C

D

D

—

D

—

—

—

—

—

—

—

—

—


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 Legend — Post Sizes A = 101.6 mm x 152.4 mm B = 152.4 mm x 152.4 mm C = 152.4 mm x 203.2 mm D = 203.2 mm x 203.2 mm Notes to Table 9.40.3.2.E: (1)Designs are based on load combinations of total roof load and wind load acting at the same time on a closed building. (2)Posts shall be oriented with the long dimension parallel to the building width. (3)Bracing systems shall be specified by a competent designer. (4)Posts shall be situated on footings and shall be anchored to prevent wind uplift. (5)Posts shall be constrained against lateral movement at ground level and at the footing. Concrete floor, splash-rail and uplift anchor help to meet this condition. (6)Post designs are based on partial fixity condition due to embedment in soil. (7)Footing excavations should be backfilled with parent material unless otherwise specified by a competent designer. Table 9.40.3.2.F. Post Sizes for Diaphragm-Braced Farm Buildings of Low Human Occupancy Forming Part of Article 9.40.3.2.  Building Width, m

Wall Height, m

Ungraded Lumber, Full-Dimensioned


For Wind Loading q10 ≤ 0.45 kPa


Post Spacing,   2.4 m

Post Spacing,   3.6 m

Post Spacing,   4.8 m


Roof Load, kPa

Roof Load, kPa

Roof Load, kPa


1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3


9.14

≤ 3.0

A

A

A

A

A

A

A

B

B

B

B

B

C

C

C


3.6

A

A

A

B

B

B

B

B

C

C

C

C

C

C

C


4.2

B

B

B

B

C

C

C

C

C

C

C

C

C

D

D


4.8

B

B

C

C

C

C

C

C

C

D

C

D

D

D

—


6.0

C

C

C

C

C

D

D

D

—

—

—

—

—

—

—


12.1

≤ 3.0

A

A

A

B

B

B

B

B

C

C

B

C

C

C

C


3.6

A

A

B

B

B

B

C

C

C

C

C

C

C

D

D


4.2

B

B

B

C

C

C

C

C

C

D

C

D

D

D

—


4.8

B

C

C

C

C

C

C

D

D

D

D

D

—

—

—


6.0

C

C

C

D

D

D

D

—

—

—

—

—

—

—

—


15.2

≤ 3.0

A

A

B

B

B

B

B

C

C

C

C

C

C

D

D


3.6

A

B

B

C

C

C

C

C

C

D

C

C

D

D

—


4.2

B

C

C

C

C

C

C

C

D

D

D

D

D

—

—


4.8

C

C

C

C

C

C

D

D

D

—

D

—

—

—

—


6.0

C

C

D

D

—

D

—

—

—

—

—

—

—

—

—


18.2

≤ 3.0

A

B

B

B

C

B

C

C

C

D

C

C

D

D

—


3.6

B

B

C

C

C

C

C

C

D

D

C

D

D

—

—


4.2

B

C

C

C

C

C

C

D

D

—

D

D

—

—

—


4.8

C

C

C

C

D

D

D

D

—

—

—

—

—

—

—


6.0

C

D

D

—

—

—

—

—

—

—

—

—

—

—

—


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 Legend — Post Sizes A = 101.6 mm x 152.4 mm B = 152.4 mm x 152.4 mm C = 152.4 mm x 203.2 mm D = 203.2 mm x 203.2 mm Notes to Table 9.40.3.2.F: (1)Designs are based on load combinations of total roof load and wind load acting at the same time on a closed building. (2)Posts shall be oriented with the long dimension parallel to the building width. (3)Bracing systems shall be specified by a competent designer. (4)Posts shall be situated on footings and shall be anchored to prevent wind uplift. (5)Posts shall be constrained against lateral movement at ground level and at the footing. Concrete floor, splash-rail and uplift anchor help to meet this condition. (6)Post designs are based on partial fixity condition due to embedment in soil. (7)Footing excavations should be backfilled with parent material unless otherwise specified by a competent designer. Table 9.40.3.2.G. Post Sizes for Knee-Braced Farm Buildings of Low Human Occupancy Forming Part of Article 9.40.3.2.  Building Width, m

Wall Height, m

Ungraded Lumber, Full-Dimensioned


For Wind Loading q10 ≤ 0.30 kPa


Post Spacing,   2.4 m

Post Spacing,   3.6 m

Post Spacing,   4.8 m


Roof Load, kPa

Roof Load, kPa

Roof Load, kPa


1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3


9.14

≤ 3.0

A

A

A

A

A

A

A

B

B

B

B

B

C

C

C


3.6

A

A

A

B

B

B

B

B

C

C

B

C

C

C

C


4.2

B

B

B

B

C

B

C

C

C

C

C

C

C

D

D


4.8

C

C

C

C

C

C

C

C

C

D

C

C

D

D

—


6.0

C

C

C

C

D

C

D

D

—

—

D

—

—

—

—


12.1

≤ 3.0

A

A

A

B

B

A

B

B

C

C

B

C

C

C

D


3.6

A

B

B

B

C

B

C

C

C

C

C

C

C

D

D


4.2

B

B

C

C

C

C

C

C

C

D

C

C

D

D

—


4.8

C

C

C

C

C

C

C

D

D

D

D

D

—

—

—


6.0

C

C

C

D

D

D

D

—

—

—

—

—

—

—

—


15.2

≤ 3.0

A

A

B

B

B

B

B

C

C

C

C

C

C

D

D


3.6

A

B

B

C

C

C

C

C

C

D

C

C

D

D

—


4.2

B

C

C

C

C

C

C

D

D

D

C

D

—

—

—


4.8

C

C

C

C

D

C

D

D

—

—

D

—

—

—

—


6.0

C

D

D

D

—

D

—

—

—

—

—

—

—

—

—


18.2

≤ 3.0

A

B

B

C

C

B

C

C

C

D

C

C

D

D

—


3.6

B

B

C

C

C

C

C

C

D

D

C

D

D

—

—


4.2

C

C

C

C

D

C

C

D

—

—

D

D

—

—

—


4.8

C

C

C

D

D

C

D

—

—

—

D

—

—

—

—


6.0

C

D

—

—

—

—

—

—

—

—

—

—

—

—

—


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 Legend — Post Sizes A = 101.6 mm x 152.4 mm B = 152.4 mm x 152.4 mm C = 152.4 mm x 203.2 mm D = 203.2 mm x 203.2 mm Notes to Table 9.40.3.2.G (1)Designs are based on load combinations of total roof load and wind load acting at the same time on a closed building. (2) Posts shall be oriented with the long dimension parallel to the building width. (3)Bracing systems shall be specified by a competent designer. (4)Posts shall be situated on footings and shall be anchored to prevent wind uplift. (5)Posts shall be constrained against lateral movement at ground level and at the footing. Concrete floor, splash-rail and uplift anchor help to meet this condition. (6)Post designs are based on partial fixity condition due to embedment in soil. (7)Footing excavations should be backfilled with parent material unless otherwise specified by a competent designer. Table 9.40.3.2.H. Post Sizes for Knee-Braced Farm Buildings of Low Human Occupancy Forming Part of Article 9.40.3.2.  Building Width,   m

Wall Height, m

Ungraded Lumber, Full-Dimensioned


For Wind Loading q10 ≤ 0.45 kPa


Post Spacing,   2.4 m

Post Spacing,   3.6 m

Post Spacing,   4.8 m


Roof Load, kPa

Roof Load, kPa

Roof Load, kPa


1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3


9.14

≤ 3.0

A

A

A

A

B

A

B

B

B

C

B

C

C

C

C


3.6

A

A

B

B

B

B

C

C

C

C

C

C

C

C

D


4.2

B

B

B

C

C

C

C

C

C

C

C

C

D

D

D


4.8

C

C

C

C

C

C

C

C

D

D

D

D

D

—

—


6.0

C

C

C

D

D

D

D

—

—

—

—

—

—

—

—


12.1

≤ 3.0

A

A

B

B

B

B

B

C

C

C

C

C

C

C

D


3.6

A

B

B

C

C

C

C

C

C

C

C

C

D

D

D


4.2

B

C

C

C

C

C

C

C

D

D

C

D

D

—

—


4.8

C

C

C

C

C

C

D

D

D

—

D

—

—

—

—


6.0

C

D

D

D

—

—

—

—

—

—

—

—

—

—

—


15.2

≤ 3.0

A

B

B

B

C

B

C

C

C

C

C

C

D

D

D


3.6

B

B

C

C

C

C

C

C

D

D

C

D

D

—

—


4.2

C

C

C

C

C

C

C

D

D

—

D

D

—

—

—


4.8

C

C

C

D

D

D

D

—

—

—

—

—

—

—

—


6.0

D

D

D

—

—

—

—

—

—

—

—

—

—

—

—


18.2

≤ 3.0

A

B

B

C

C

C

C

C

D

D

C

D

D

—

—


3.6

B

C

C

C

C

C

C

D

D

—

D

D

—

—

—


4.2

C

C

C

C

C

C

C

D

D

—

D

D

—

—

—


4.8

C

C

C

C

D

C

D

D

—

—

D

—

—

—

—


6.0

C

C

D

D

D

D

—

—

—

—

—

—

—

—

—


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 Legend — Post Sizes A = 101.6 mm x 152.4 mm B = 152.4 mm x 152.4 mm C = 152.4 mm x 203.2 mm D = 203.2 mm x 203.2 mm Notes to Table 9.40.3.2.H.: (1)Designs are based on load combinations of total roof load and wind load acting at the same time on a closed building. (2)Posts shall be oriented with the long dimension parallel to the building width. (3)Bracing systems shall be specified by a competent designer. (4)Posts shall be situated on footings and shall be anchored to prevent wind uplift. (5)Posts shall be constrained against lateral movement at ground level and at the footing. Concrete floor, splash-rail and uplift anchor help to meet this condition. (6)Post designs are based on partial fixity condition due to embedment in soil. (7)Footing excavations should be backfilled with parent material unless otherwise specified by a competent designer. Table 9.40.3.2.I. Post Sizes for Farm Buildings of Low Human Occupancy (With Second Storey Loading) Forming Part of Article 9.40.3.2.  Side   wall   Height,   m

Total Roof Load, kPa

Spruce – Pine – Fir, No. 1, Dressed (Post and Timber Grades)

Second Storey Plate, kN/m


Wind load: q10 ≤ 0.30 kPa

Wind load: q10 ≤ 0.45 kPa


2.4 m o.c.

3.600 m o.c.

2.400 m o.c.

3.600 m o.c.


Building Width, m

Building Width, m

Building Width, m

Building Width, m


9.14

12.2

15.2

18.3

9.14

12.2

15.2

18.3

9.14

12.2

15.2

18.3

9.14

12.2

15.2

18.3


3.0

1.9

A

A

A

A

A

A

B

B

A

A

A

A

A

B

B

B

14.6


2.4

A

A

A

A

A

B

B

B

A

A

A

B

A

B

B

B


2.8

A

A

A

B

A

B

B

C

A

A

B

B

B

B

B

C


3.3

A

A

B

B

B

B

B

C

A

A

B

B

B

B

C

C


3.6

1.9

A

A

A

B

A

B

B

C

A

A

B

B

B

B

C

C

14.6


2.4

A

A

B

B

B

B

C

C

A

B

B

B

B

C

C

C


2.8

A

B

B

B

B

B

C

C

A

B

B

B

B

C

C

C


3.3

A

B

B

C

B

C

C

C

B

B

B

C

C

C

C

C


3.0

1.9

A

A

A

A

A

A

B

B

A

A

A

A

A

A

B

B

7.3


2.4

A

A

A

A

A

A

B

B

A

A

A

A

A

B

B

B


2.8

A

A

A

B

A

B

B

B

A

A

A

B

B

B

B

C


3.3

A

A

B

B

B

B

B

C

A

A

B

B

B

B

C

C


3.6

1.9

A

A

A

B

A

B

B

B

A

A

B

B

B

B

C

C

7.3


2.4

A

A

B

B

B

B

C

C

A

B

B

B

B

B

C

C


2.8

A

A

B

B

B

B

C

C

A

B

B

B

B

C

C

C


3.3

A

B

B

B

B

C

C

C

B

B

B

C

C

C

C

C


3.0

1.9

A

A

A

A

A

A

A

B

A

A

A

A

A

A

B

B

3.6


2.4

A

A

A

A

A

A

B

B

A

A

A

A

A

B

B

B


2.8

A

A

A

B

A

B

B

B

A

A

A

B

B

B

B

C


3.3

A

A

A

B

A

B

B

C

A

A

B

B

B

B

C

C


3.6

1.9

A

A

A

B

A

B

B

B

A

A

A

B

B

B

B

C

3.6


2.4

A

A

B

B

B

B

B

C

A

A

B

B

B

B

C

C


2.8

A

A

B

B

B

B

C

C

A

B

B

B

B

C

C

C


3.3

A

B

B

B

B

C

C

C

A

B

B

C

B

C

C

C


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 Legend — Post Sizes A =  89 mm x 140 mm B = 140 mm x 140 mm C = 140 mm x 184 mm Notes to Table 9.40.3.2.I.: (1)Designs are based on load combinations of total roof load, wind load and stored product acting at the same time on a closed building. (2)All notes following Table 9.40.3.2.A. apply, with the following conditions/exceptions: —14.6 kN/m loading: Full 4.8 m sidewall hay/straw storage space above. It is supported by beams spaced at 3.6 m o.c. The outside plate carries a 1.8 m floor width. If the loading is greater, refer to a qualified person for design. —7.3 kN/m loading: Full 2.4 m sidewall hay/straw storage space above or a gambrel roof structure > 9.14 m in total width. Floor support beams as above. —3.6 kN/m loading: Small gambrel roof structure or storage space for light storage. Floor support beams as above. Table 9.40.3.2.J. Round Posts Forming Part of Article 9.40.3.2.  Ungraded Lumber Full-dimension Size,   mm

Equivalent Diameter Full Size, mm


50.8 x 101.6

101.6


50.8 x 152.4

127.0


50.8 x 203.2

152.4


50.8 x 254.0

177.8


50.8 x 304.8

203.2


76.2 x 304.8

228.6


76.2 x 355.6

254.0


101.6 x 152.4

158.8


101.6 x 304.8

203.2


101.6 x 355.6

279.4


127.0 x 203.2

209.6


127.0 x 254.0

241.3


152.4 x 152.4

190.5


152.4 x 203.2

222.3


152.4 x 254.0

260.4


203.2 x 203.2

247.7


203.2 x 254.0

285.8


203.2 x 304.8

317.5


254.0 x 304.8

342.9


254.0 x 355.6

381.0


Column 1

2 Notes to Table 9.40.3.2.J.: (1)When selecting round, ungraded lumber, ensure that the material is of good quality. (2)Any timber that is in contact with ground shall be chemically treated to resist growth of fungus and decay. (3)Equivalent diameter indicated in this Table refers to the smallest diameter of a tapering pole. (4)Used hydro or telephone poles may be used if they are of good quality and are chemically treated to prevent decay. (5)Indicated equivalent diameter will provide bending, shear and deflection resisting capabilities equal to or better than the rectangular section that it replaces. Table 9.40.3.3.K. Common Rafter Sizes for Farm Buildings of Low Human Occupancy Forming Part of Article 9.40.3.3.  Rafter Span,   m

Spruce – Pine – Fir, No. 1 and No. 2 (Dressed Lumber)


Rafter Spacing


300 mm

400 mm

600 mm


Live Load, kPa

Live Load, kPa

Live Load, kPa


1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3


2.4

A

A

B

B

B

A

B

B

B

B

B

B

B

B

B


3.0

B

B

B

B

B

B

B

B

B

C

B

B

C

C

D


3.6

B

B

C

C

C

B

C

C

C

C

C

C

D

D

D


4.2

B

C

C

C

C

C

C

C

D

D

C

D

D

E

E


4.8

C

C

D

D

D

C

D

D

E

E

D

E

E

—

—


5.4

C

D

D

D

E

D

D

E

E

—

E

E

—

—

—


6.0

D

D

D

E

—

D

E

E

—

—

E

—

—

—

—


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 Legend — Rafter Sizes A = 38 mm x 89 mm B = 38 mm x 140 mm C = 38 mm x 184 mm D = 38 mm x 235 mm E = 38 mm x 286 mm Note to Table 9.40.3.3.K.: (1)The rafter span is the unsupported length of the rafter from plate to plate or from plate to ridge. A dead load of 0.24 kPa is incorporated to allow for weight of the roof sheathing and rafter. Table 9.40.3.3.L. Common Rafter Sizes for Farm Buildings of Low Human Occupancy Forming Part of Article 9.40.3.3.  Rafter Span, m

Ungraded Lumber, Full-Dimension


Rafter Spacing


300 mm

400 mm

600 mm


Live Load, kPa

Live Load, kPa

Live Load, kPa


1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3

1.4

1.9

2.4

2.8

3.3


2.4

A

A

B

B

B

B

B

B

B

C

B

B

C

C

D


3.0

B

B

B

C

C

B

C

C

C

D

C

C

D

D

E


3.6

B

C

C

D

D

C

C

D

D

E

D

D

E

F

F


4.2

C

C

D

D

E

D

D

E

E

F

E

F

F

F

G


4.8

C

D

E

E

F

D

E

F

F

F

F

F

F

G

I


5.4

D

E

F

F

F

E

F

F

F

G

F

G

H

I

—


6.0

E

F

F

F

G

F

F

G

G

I

F

H

I

—

—


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 Legend — Rafter Sizes A = 50.8 mm x 101.6 mm B = 50.8 mm x 152.4 mm C = 50.8 mm x 203.2 mm D = 50.8 mm x 254.0 mm E = 50.8 mm x 304.8 mm F = 76.2 mm x 304.8 mm G = 76.2 mm x 355.6 mm H = 101.6 mm x 304.8 mm I = 101.6 mm x 355.6 mm Note to Table 9.40.3.3.L.: (1)The rafter span is the unsupported length of the rafter from plate to plate or from plate to ridge. A dead load of 0.24 kPa is incorporated to allow for weight of the roof sheathing and rafter. Table 9.40.3.3.M. Floor Joists for Farm Buildings of Low Human Occupancy — Intermittent Loads(1) Forming Part of Article 9.40.3.3.  Joist Span,   m

Spruce – Pine – Fir, No. 1 and No. 2 (Dressed Lumber)


Joist Spacing


300 mm

400 mm

600 mm


Live Load, kPa

Live Load, kPa

Live Load, kPa


1.9

2.8

3.8

4.8

6.7

8.6

1.9

2.8

3.8

4.8

6.7

8.6

1.9

2.8

3.8

4.8

6.7

8.6


2.4

A

B

B

B

B

C

B

B

B

B

C

C

B

B

B

C

D

D


3.0

B

B

B

C

C

D

B

B

C

C

D

D

B

C

C

D

E

—


3.6

B

C

C

C

D

D

C

C

C

D

E

E

C

D

D

E

—

—


4.2

C

C

D

D

E

E

C

D

D

E

—

—

D

D

E

—

—

—


4.8

C

D

D

E

—

—

D

D

E

E

—

—

D

E

—

—

—

—


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 Legend — Joist Sizes A = 38 mm x 89 mm B = 38 mm x 140 mm C = 38 mm x 184 mm D = 38 mm x 235 mm E = 38 mm x 286 mm Notes to Table 9.40.3.3.M.: (1)Loads are applied to the floor intermittently. (When loads are applied for extended periods of time, use Table 9.40.3.3.N.). (2)A dead load of 0.48 kPa is incorporated to allow for the dead weight of the floor system. Table 9.40.3.3.N. Floor Joists for Farm Buildings of Low Human Occupancy — Continuous Loads(1) Forming Part of Article 9.40.3.3.  Joist Span,   m

Spruce – Pine – Fir, No. 1 and No. 2 (Dressed Lumber)


Joist Spacing


300 mm

400 mm

600 mm


Live Load, kPa

Live Load, kPa

Live Load, kPa


1.9

2.8

3.8

4.8

6.7

8.6

1.9

2.8

3.8

4.8

6.7

8.6

1.9

2.8

3.8

4.8

6.7

8.6


2.4

A

B

B

B

C

C

B

B

B

C

D

E

B

C

C

D

—

—


3.0

B

B

C

C

D

E

B

C

C

D

E

—

C

D

D

E

—

—


3.6

B

C

D

D

E

—

C

D

D

E

—

—

D

E

—

—

—

—


4.2

C

D

D

E

—

—

D

E

E

—

—

—

E

—

—

—

—

—


4.8

D

D

E

—

—

—

D

E

—

—

—

—

—

—

—

—

—

—


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 Legend — Joist Sizes A = 38 mm x 89 mm B = 38 mm x 140 mm C = 38 mm x 184 mm D = 38 mm x 235 mm E = 38 mm x 286 mm Notes to Table 9.40.3.3.N.: (1)For use of floors that support hay, straw, grain or other continuous loads. (2)A dead load of 0.48 kPa is incorporated to allow for the dead weight of the floor system. Table 9.40.3.3.O. Built-up Wood Beam Sizes for Farm Buildings of Low Human Occupancy — Intermittent Loads(1) Forming Part of Article 9.40.3.3.  Beam   Span,   m

Spruce – Pine – Fir, No. 1 and No. 2 (Dressed Lumber)


Total Load on Beam, kN/m


5.84

8.76

11.67

14.59

17.51

20.43

23.35

26.27

29.19

32.11

35.03


1.8

A

A

A

B

B

D

D

G

G

J

L


2.4

A

A

B

D

E

H

J

L

—

—

—


3.0

A

C

E

H

J

K

—

—

—

—

—


3.6

C

H

J

L

—

—

—

—

—

—

—


4.2

E

J

L

—

—

—

—

—

—

—

—


4.8

I

L

—

—

—

—

—

—

—

—

—


Column 1

2

3

4

5

6

7

8

9

10

11

12 Legend – Beam Sizes A = 3 – 38 mm x 184 mm B = 4 – 38 mm x 184 mm C = 3 – 38 mm x 235 mm D = 5 – 38 mm x 184 mm E = 3 – 38 mm x 286 mm F = 4 – 38 mm x 235 mm G = 6 – 38 mm x 184 mm H = 5 – 38 mm x 235 mm I = 4 – 38 mm x 286 mm J = 6 – 38 mm x 235 mm K = 5 – 38 mm x 286 mm L = 6 – 38 mm x 286 mm Notes to Table 9.40.3.3.O.: (1)Loads are applied to the beam intermittently. (2)A dead load of 0.584 kN/m is assumed for all beams. (3)Floors systems supporting heavy loads over larger spans will require the use of steel beams or other specialized materials. Table 9.40.3.3.P. Built-up Wood Beam Sizes for Farm Buildings of Low Human Occupancy — Continuous Loads(1) Forming Part of Article 9.40.3.3.  Beam Span, m

Spruce – Pine – Fir, No. 1 and No. 2 (Dressed Lumber)


Total Load on Beam, kN/m


5.84

8.76

11.67

14.59

17.51

20.43

23.35


1.8

A

A

B

D

G

J

L


2.4

A

C

E

J

L

—

—


3.0

D

H

J

L

—

—

—


3.6

H

K

—

—

—

—

—


4.2

K

—

—

—

—

—

—


4.8

L

—

—

—

—

—

—


Column 1

2

3

4

5

6

7

8 Legend – Beam Sizes A = 3 – 38 mm x 184 mm B = 4 – 38 mm x 184 mm C = 3 – 38 mm x 235 mm D = 5 – 38 mm x 184 mm E = 3 – 38 mm x 286 mm F = 4 – 38 mm x 235 mm G = 6 – 38 mm x 184 mm H = 5 – 38 mm x 235 mm I = 4 – 38 mm x 286 mm J = 6 – 38 mm x 235 mm K = 5 – 38 mm x 286 mm L = 6 – 38 mm x 286 mm Notes to Table 9.40.3.3.P.: (1)For use of floors that support hay, straw, grain or other continuous loads. (2)A dead load of 0.48 kPa is assumed for all beams. (3)Floor systems supporting heavy loads over larger spans will require use of steel beams or other specialized materials. Table 9.40.3.3.Q. Ungraded Lumber, Full-Dimension Roof Beam Sizes for Farm Buildings of Low Human Occupancy(1) Forming Part of Article 9.40.3.3.  Beam Span, m

Total Load on Built-up Wood Beam, kN/m


5.84

8.76

11.67

14.59

17.51

20.43

23.35

26.27


1.8

A

A

B

C

D

F

G

H


2.4

B

D

E

H

I

J

—

—


3.0

D

G

I

—

—

—

—

—


3.6

G

J

—

—

—

—

—

—


4.2

J

—

—

—

—

—

—

—


Column 1

2

3

4

5

6

7

8

9 Legend – Built-up Wood Beam Sizes A = 3 – 50.8 mm x 203.2 mm B = 4 – 50.8 mm x 203.2 mm C = 3 – 50.8 mm x 254.0 mm D = 5 – 50.8 mm x 203.2 mm E = 6 – 50.8 mm x 203.2 mm F = 4 – 50.8 mm x 254.0 mm G = 5 – 50.8 mm x 254.0 mm H = 4 – 50.8 mm x 304.8 mm I = 5 – 50.8 mm x 304.8 mm J = 6 – 50.8 mm x 304.8 mm Notes to Table 9.40.3.3.Q.: (1)Ungraded lumber, full-dimension, built-up wood beam. (2)A dead load of 0.584 kN/m is assumed. (3)Beams are sized for roof load only. Table 9.40.3.3.R. Ungraded Lumber, Full-Dimension Roof Beam Sizes for Farm Buildings of Low Human Occupancy(1) Forming Part of Article 9.40.3.3.  Beam Span, m

Total Load on Built-up Sawn Beam, kN/m


5.84

8.76

11.67

14.59

17.51

20.43

23.35

26.27


1.8

A

A

B

C

D

E

F

G


2.4

A

B

D

D

F

G

—

—


3.0

C

D

E

F

—

—

—

—


3.6

D

F

G

—

—

—

—

—


4.2

E

G

—

—

—

—

—

—


Column 1

2

3

4

5

6

7

8

9 Legend — Sawn Beam Sizes A = 127.0 mm x 203.2 mm B = 127.0 mm x 254.0 mm C = 152.4 mm x 254.0 mm D = 203.2 mm x 254.0 mm E = 203.2 mm x 304.8 mm F = 254.0 mm x 304.8 mm G = 254.0 mm x 355.6 mm Notes to Table 9.40.3.3.R.: (1)Ungraded lumber, full-dimension, sawn wood beam. (2)A dead load of 0.584 kN/m is assumed. (3)Beams are sized for roof load only. Table 9.40.3.3.S. Roof Plate — Beams and Lintels for Farm Buildings of Low Human Occupancy Forming Part of Article 9.40.3.3.  Building Width, m

Spruce – Pine – Fir, No. 1 and No. 2 (Dressed Lumber)


Total Roof Load, kPa, with Post Spacing at 2.4 m


A

B

C

D

E

F

G

H

I


7.3

1.67

2.77

3.68

2.49

4.11

5.50

3.35

5.55

7.42


8.5

1.43

2.34

3.16

2.15

3.54

4.74

2.87

4.74

6.36


9.7

1.24

2.05

2.77

1.86

3.11

4.11

2.53

4.16

5.55


10.9

—

1.81

2.44

1.67

2.72

3.68

2.25

3.68

4.93


12.1

—

1.62

2.20

1.48

2.49

3.30

2.01

3.30

4.45


13.4

—

1.48

2.01

1.34

2.25

3.01

1.81

3.01

4.02


14.6

—

1.38

1.81

1.24

2.05

2.72

1.67

2.77

3.68


15.8

—

1.24

1.67

—

1.91

2.53

1.53

2.53

3.40


17.0

—

—

1.58

—

1.77

2.34

1.43

2.39

3.16


18.2

—

—

1.48

—

1.62

2.20

1.34

2.20

2.96


Building Width, m

Total Roof Load, kPa, with Post Spacing at 3.0 m


A

B

C

D

E

F

G

H

I


7.3

—

1.72

2.29

1.53

2.58

3.44

2.10

3.44

4.64


8.5

—

1.48

1.96

1.34

2.20

2.96

1.77

2.96

3.97


9.7

—

1.29

1.72

—

1.91

2.58

1.58

2.58

3.44


10.9

—

—

1.53

—

1.72

2.29

1.38

2.29

3.06


12.1

—

—

1.38

—

1.53

2.05

1.24

2.05

2.77


13.4

—

—

1.24

—

1.38

1.86

—

1.86

2.53


14.6

—

—

—

—

1.29

1.72

—

1.72

2.29


15.8

—

—

—

—

—

1.58

—

1.58

2.10


17.0

—

—

—

—

—

1.48

—

1.48

1.96


18.2

—

—

—

—

—

1.38

—

1.38

1.81


Building Width, m

Total Roof Load, kPa, with Post Spacing at 3.6 m


A

B

C

D

E

F

G

H

I


7.3

—

1.38

1.81

1.24

2.05

2.72

1.67

2.77

3.68


8.5

—

—

1.58

—

1.77

2.34

1.43

2.39

3.16


9.7

—

—

1.38

—

1.53

2.05

1.24

2.05

2.77


10.9

—

—

1.19

—

1.38

1.81

—

1.81

2.44


12.1

—

—

—

—

1.24

1.62

—

1.67

2.20


13.4

—

—

—

—

—

1.48

—

1.48

2.01


14.6

—

—

—

—

—

1.38

—

1.38

1.81


15.8

—

—

—

—

—

1.24

—

1.29

1.67


17.0

—

—

—

—

—

—

—

—

1.58


18.2

—

—

—

—

—

—

—

—

1.48


Column 1

2

3

4

5

6

7

8

9

10 Legend — Roof Plate-Beam and Lintel Sizes A = 2 – 38 mm x 184 mm B = 3 – 38 mm x 184 mm C = 4 – 38 mm x 184 mm D = 2 – 38 mm x 235 mm E = 3 – 38 mm x 235 mm F = 4 – 38 mm x 235 mm G = 2 – 38 mm x 286 mm H = 3 – 38 mm x 286 mm I = 4 – 38 mm x 286 mm Notes to Table 9.40.3.3.S.: (1)Trusses are at 1.2 m on centres. (2)Plate-beam/lintel loading can be very significant. (3)Specifications for anchorage at supporting posts must be specified by a competent designer. Table 9.40.3.3.T. Roof Plate — Beams and Lintels for Farm Buildings of Low Human Occupancy Forming Part of Article 9.40.3.3.  Building Width, m

Ungraded Lumber-Full Dimension


Total Roof Load, kPa, with Post Spacing at 2.4 m


A

B

C

D

E

F

G

H

I


7.3

—

1.72

2.29

1.48

2.44

3.25

1.91

3.20

4.26


8.5

—

1.43

1.96

1.24

2.10

2.77

1.67

2.72

3.68


9.7

—

1.29

1.72

—

1.81

2.44

1.43

2.39

3.20


10.9

—

—

1.53

—

1.62

2.15

1.29

2.15

2.87


12.1

—

—

1.34

—

1.48

1.96

—

1.91

2.58


13.4

—

—

1.24

—

1.34

1.77

—

1.72

2.34


14.6

—

—

—

—

1.19

1.62

—

1.58

2.15


15.8

—

—

—

—

—

1.48

—

1.48

1.96


17.0

—

—

—

—

—

1.38

—

1.38

1.81


18.2

—

—

—

—

—

1.29

—

1.29

1.72


Building Width, m

Total Roof Load, kPa, with Post Spacing at 3.0 m


A

B

C

D

E

F

G

H

I


7.3

—

—

1.43

—

1.53

2.05

1.19

2.01

2.68


8.5

—

—

1.19

—

1.29

1.72

—

1.72

2.29


9.7

—

—

—

—

—

1.53

—

1.48

2.01


10.9

—

—

—

—

—

1.34

—

1.34

1.77


12.1

—

—

—

—

—

1.19

—

—

1.58


13.4

—

—

—

—

—

—

—

—

1.43


14.6

—

—

—

—

—

—

—

—

1.34


15.8

—

—

—

—

—

—

—

—

1.24


17.0

—

—

—

—

—

—

—

—

—


18.2

—

—

—

—

—

—

—

—

—


Building Width, m

Total Roof Load, kPa, with Post Spacing at 3.6 m


A

B

C

D

E

F

G

H

I


7.3

—

—

—

—

1.19

1.62

—

1.58

2.15


8.5

—

—

—

—

—

1.38

—

1.38

1.81


9.7

—

—

—

—

—

1.19

—

—

1.58


10.9

—

—

—

—

—

—

—

—

1.43


12.1

—

—

—

—

—

—

—

—

1.29


13.4

—

—

—

—

—

—

—

—

—


14.6

—

—

—

—

—

—

—

—

—


15.8

—

—

—

—

—

—

—

—

—


17.0

—

—

—

—

—

—

—

—

—


18.2

—

—

—

—

—

—

—

—

—


Column 1

2

3

4

5

6

7

8

9

10 Legend – Roof Plate–Beam and Lintel Sizes: A = 2 – 50.8 mm x 203.2 mm B = 3 – 50.8 mm x 203.2 mm C = 4 – 50.8 mm x 203.2 mm D = 2 – 50.8 mm x 254.0 mm E = 3 – 50.8 mm x 254.0 mm F = 4 – 50.8 mm x 254.0 mm G = 2 – 50.8 mm x 304.8 mm H = 3 – 50.8 mm x 304.8 mm I = 4 – 50.8 mm x 304.8 mm Notes to Table 9.40.3.3.T.: (1)Trusses are at 1.2 m on centres. (2)Plate-beam/lintel loading can be very significant. (3)Specifications for anchorage at supporting posts must be specified by a competent designer. Table 9.40.3.4.U. Stud Sizes for Farm Buildings of Low Human Occupancy (Single Storey) Forming Part of Article 9.40.3.4.  Sidewall   Height,   m

Total   Roof Load,   kPa

Spruce – Pine – Fir, No. 1 and No. 2 (Dressed Lumber)


Wind Load: q10 ≤ 0.30 kPa

Wind Load: q10 ≤ 0.45 kPa


400 mm o.c.

600 mm o.c.

400 mm o.c.

600 mm o.c.


Building Width, m

Building Width, m

Building Width, m

Building Width, m


9.14

12.2

15.2

18.3

9.14

12.2

15.2

18.3

9.14

12.2

15.2

18.3

9.14

12.2

15.2

18.3


3.0

1.9

A

A

A

A

A

A

A

B

A

A

A

A

A

A

A

B


2.4

A

A

A

A

A

A

B

B

A

A

A

A

A

A

B

B


2.8

A

A

A

A

A

A

B

B

A

A

A

A

A

B

B

B


3.3

A

A

A

B

A

B

B

B

A

A

A

B

A

B

B

B


3.6

1.9

A

A

A

B

A

B

B

B

A

A

A

B

B

B

B

B


2.4

A

A

B

B

B

B

B

B

A

A

B

B

B

B

B

B


2.8

A

B

B

B

B

B

B

B

A

B

B

B

B

B

B

B


3.3

A

B

B

B

B

B

B

B

A

B

B

B

B

B

B

B


4.2

1.9

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


2.4

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


2.8

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


3.3

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


4.8

1.9

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


2.4

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

C


2.8

B

B

B

B

B

B

B

C

B

B

B

B

B

B

C

C


3.3

B

B

B

B

B

B

C

C

B

B

B

B

B

B

C

C


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 Legend — Stud Sizes A = 38 mm x 89 mm B = 38 mm x 140 mm C = 38 mm x 184 mm or double 38 mm x 140 mm under the trusses, with an intermediate 38 mm x 140 mm stud at 600 mm. Notes to Table 9.40.3.4.U.: (1)Designs are based on load combinations of total roof load and wind load acting at the same time on a closed building. (2)It is assumed that the double top plate is rigid enough to cause load sharing amongst all studs regardless of the spacing 400 mm or 600 mm. (3)Solid bridging shall be used on all walls as follows: ≤3.0 m: 1 row at mid-height. 3.6 m - 4.2 m: 2 rows at third-points. 4.8 m: 3 rows at quarter-points. (4)Wind bracing shall not impose additional bending forces onto the stud. Table 9.40.3.4.V. Stud Sizes for Farm Buildings of Low Human Occupancy (With Second Storey Loading) Forming Part of Article 9.40.3.4.  Sidewall   Height,   m

Total   Roof Load,   kPa

Spruce — Pine —Fir, No. 1 and No. 2 (Dressed Lumber)

Second   Storey   Plate,   kN/m


Wind Load: q10 ≤ 0.30 kPa

Wind Load: q10 ≤ 0.45 kPa


400 mm o.c.

600 mm o.c.

400 mm o.c.

600 mm o.c.


Building Width, m

Building Width, m

Building Width, m

Building Width, m


9.14

12.2

15.2

18.3

9.14

12.2

15.2

18.3

9.14

12.2

15.2

18.3

9.14

12.2

15.2

18.3


3.0

1.9

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

14.6


2.4

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


2.8

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


3.3

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


3.6

1.9

B

B

B

B

B

B

B

C

B

B

B

B

B

B

C

C

14.6


 

2.4

B

B

B

B

B

B

C

C

B

B

B

B

B

C

C

C

 


 

2.8

B

B

B

B

B

B

C

C

B

B

B

B

B

C

C

C

 


 

3.3

B

B

B

B

B

C

C

C

B

B

B

B

C

C

C

C

 


3.0

1.9

A

A

B

B

B

B

B

B

B

B

B

B

B

B

B

B

7.3


2.4

A

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


2.8

A

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


3.3

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


3.6

1.9

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

7.3


2.4

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


2.8

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


3.3

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

C


3.0

1.9

A

A

A

A

A

B

B

B

A

A

A

A

B

B

B

B

3.6


2.4

A

A

A

B

B

B

B

B

A

A

A

A

B

B

B

B


2.8

A

A

B

B

B

B

B

B

A

A

B

B

B

B

B

B


3.3

A

A

B

B

B

B

B

B

A

B

B

B

B

B

B

B


3.6

1.9

A

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

3.6


2.4

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


2.8

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


3.3

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 Legend — Stud Sizes A = 38 mm x 89 mm B = 38 mm x 140 mm C = 38 mm x 184 mm or double 38 mm x 140 mm Notes to Table 9.40.3.4.V.: (1)Design is based on load combinations of total roof load, wind load and stored product acting at the same time on a closed building. (2)All notes following Table 9.40.3.4.U. apply, with the following conditions/exceptions: 14.6 kN/m loading: Full 4.8 m sidewall hay/straw storage space above. It is supported by beams spaced at 3.6 m o.c. The outside plate carries a 1.8 m floor width. If the loading is greater, refer to a qualified person for design. 7.3 kN/m loading: Full 2.4 m sidewall hay/straw storage space above or a gambrel roof structure >9.14 m in total width. Floor support beams as above. 3.6 kN/m loading: Small gambrel roof structure or storage space for light storage. Floor support beams as above. Table 9.40.3.4.W. Stud Sizes for Farm Buildings of Low Human Occupancy (Single Storey) Forming Part of Article 9.40.3.4.  Sidewall
Height,
m

Total
Roof Load,
kPa

Ungraded Lumber, Full-Dimensioned


Wind Load: q10 ≤ 0.30 kPa

Wind Load: q10 ≤ 0.45 kPa


400 mm o.c.

600 mm o.c.

400 mm o.c.

600 mm o.c.


Building Width, m

Building Width, m

Building Width, m

Building Width, m


9.14

12.2

15.2

18.3

9.14

12.2

15.2

18.3

9.14

12.2

15.2

18.3

9.14

12.2

15.2

18.3


3.0

1.9

A

A

A

A

A

A

A

B

A

A

A

A

A

A

B

B


2.4

A

A

A

A

A

A

B

B

A

A

A

A

A

B

B

B


2.8

A

A

A

A

A

B

B

B

A

A

A

B

B

B

B

B


3.3

A

A

A

B

A

B

B

B

A

A

A

B

A

B

B

B


3.6

1.9

A

A

A

B

A

B

B

B

A

A

A

B

B

B

B

B


2.4

A

A

B

B

B

B

B

B

A

A

B

B

B

B

B

B


2.8

A

B

B

B

B

B

B

B

A

B

B

B

B

B

B

B


3.3

A

B

B

B

B

B

B

B

B

B

B

B

B

B

B

C


4.2

1.9

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B


2.4

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

C


2.8

B

B

B

B

B

B

B

C

B

B

B

B

B

B

C

C


3.3

B

B

B

B

B

B

C

C

B

B

B

B

B

C

C

C


4.8

1.9

B

B

B

B

B

B

B

C

B

B

B

B

B

B

C

C


2.4

B

B

B

B

B

B

C

C

B

B

B

B

B

C

C

C


2.8

B

B

B

B

B

B

C

C

B

B

B

C

C

C

C

C


3.3

B

B

B

B

B

C

C

C

B

B

B

C

C

C

C

C


Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 Legend — Stud Sizes A = 50.8 mm x 101.6 mm B = 50.8 mm x 152.4 mm C = 50.8 mm x 203.2 mm or double 50.8 mm x 152.4 mm under the trusses, with an intermediate 50.8 mm x 152.4 mm stud at 600 mm Notes to Table 9.40.3.4.W.: (1)Designs are based on load combinations of total roof load and wind load acting at the same time on a closed building. (2)It is assumed that the double top plate is rigid enough to cause load sharing amongst all studs regardless of the spacing 400 mm or 600 mm. (3)Solid bridging shall be used on all walls as follows:  ≤3.0 m:

1 row at mid-height.


3.6 m to 4.2 m:

2 rows at third-points.


4.8 m:

3 rows at quarter-points. (4)Wind bracing shall not impose additional bending forces onto the stud. Section 9.41.Additional Requirements for Change of Use 9.41.1.Scope