Timber Wall Framing

Class Exercise 2

Reference Material

A.S. 1684.2 (2006) Non Cyclonic

Details:

• Floor Plan – Same as Roofing Class Exercise 2

• Brick Veneer Construction

• Roof Pitch 180

• Cement Tile Roofing 60Kg/m2

• Eaves Width 600mm

• Floor to Ceiling Height 2.700m

• Wall Framing – Seasoned Softwood MGP 15

• Concrete Raft Floor Slab

• Wind Classification – N3

Wall Frame. (Supporting Conventional Roof Framing)

Determine the most economical size, span & spacing of the following members

1. Bottom Wall plate – not trenched.2. Top Wall plate – not trenched (to support rafters @ 600mm c/c)3. Common Studs at 600mm c/c (not notched for erection bracing)4. Noggings5. Jamb Studs (studs at sides of openings)6. Lintels7. Eaves Beams (Verandah Beams)8. Tie down spacing 1.800

Use Preliminary Calculations from Roofing exercise 2.

Summary

• RLW Rafter = 2.064 say 2.100

• RLW Eaves = 0.788

• Purlin Set out = 1.872

• Half spread fan strut = 0.671

• Fan Strut Length = 0.931

2.7700.470 1.070 0.970 1.190 0.8500.8300.970 1.790 1.930 1.8101.310 0.4700.970 1.190 0.970 3.350

0.100 1.680

0.100

4.580 0.100

0.270 3.300 2.620 0.1001.0000.100 2.540 3.770

0.1000.750

2.1100.1001.400

0.1000.600

0.1004.250 0.250

0.350

0.530

0.1201.5502.7700.4703.6100.9501.6901.4301.6900.9502.530 0.950

22.910

2.3300.995

0.270 3.3050.100

2.730

0.100

0.500

0.100

2.930

0.100

3.770

0.100

7.660 0.250

1.00021.910

1.90

00.

100

1.69

00.

100

0.25

0

2.45

00.

990

4.11

00.

250

1.80

0

3.44

00.

250

3.94

04.

210

0.60

00.

250

2.45

00.

1000.90

0 0.10

0

2.00

0

0.10

0

2.00

00.

250

1.80

01.

650

4.10

0

0.27

00.

270

7.6

10

8.15

0

.600

Direction of Ceiling Joists

Workshop

Bed3 Bed 2Family

Dining

Lounge

Bed 1

Entry

KitchenE.S.BathW.C.L'dry

Garage Hall

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

D12D13

D14

D15

W1 W2 W3 W4 W6 W7

W8

W9W10W11W12W13W14

Floor Plan John Bridges

August 2004Floor Plan Same as

Roofing Class Exercise 2

Member Rule / Table

Size Comments

Timber Species

Timber Grade

Supplement Number

Roof Mass Table

Type of Const.

Floor / Ceiling Height

Eaves Overhang

RLW

1. Fill in General Information from Prelim. Calcs & Specification

S/softwood

MGP 15

6 - N3

60Kg/m

For roof mass use Table B1.1 p.219

B1.1

Brick veneer

2.700m

Check Preliminary Calcs for rafter RLW & Eaves RLW

Calculate Eaves Overhang – Eaves RLW

0.150 0.600

TL O/Hang = 0.600 + 0.150 COS 18

= 0.693m

0.788m

RLW Eaves = 0.788m

Member Rule / Table

Size Comments

Timber Species

Timber Grade

Supplement Number

Roof Mass Table

Type of Const.

Floor / Ceiling Height

Eaves overhang

RLW

S/softwood

MGP 15

6 - N3

60Kg/m B1.1

Brick veneer

2.700m

Eaves RLW from preliminary calcs. = 0.788m

0.788m

Calculate Common Rafter Span - RLW

4.127

Span = 4.127 2

= 2.064m

2.064

2.064

RLW = Span + Overhang2.064m + .788 = 2.852

S ay 3.000

Member Rule / Table

Size Comments

Timber Species

Timber Grade

Supplement Number

Roof Mass Table

Type of Const.

Floor / Ceiling Height

Eaves RLW

RLW

S/softwood

MGP 15

6 - N3

10Kg/m B1.1

Brick veneer

2.700m

3.000m

0.788m

2. Find information for Common Studs (rules & supp. Table)

Member Rule / Table

Size Comments

Common Studs

R

R

T

Stud Height

Stud Centers

Studs Notched

Rafter Spacing

Fill in Comments Column

2.700

0.600

Not notched

0.600m

Refer page 59, rule 6.2.1.2 (Building Practice) Common Studs.

6.2.1.2

Refer page 66, rule 6.3.2.1 (Member Sizes) Common Studs.

6.3.2.1

Refer Supp. 6, Table 7 Common Studs – Single Storey not notched, 600mm c/c, Tile roof, 2.700m Height, 0.600m Rafter spacing,RLW of 3000

7

Select stud size - 90 x 35 (from table 7) Plan shows 100mm wide walls – will use 90 x 35 as per A.S. 1684.2 Table 7

90 x 35

3. Find information for Noggings (rules & supp. Table)

Member Rule / Table

Size Comments

NoggingsR

Spacing

Refer page 62, rule 6.2.1.5 (Building Practice) Noggings.

6.2.1.5

Check spacing requirements

• Wall studs shall have continuous rows of noggings at 1350 mm maximum centres (see Figure 6.6).

• Noggings are not required to be stress graded.

• Nogging thickness shall be a minimum of 25 mm and shall be suitable for the proper fixing of cladding and linings.

• Noggings shall be installed either centrally in the depth of the studs or flush with one face of the stud in order to provide fixing or support to cladding or linings. Stagger in the row of noggings shall not be greater than twice the nogging breadth.

Member Rule / Table

Size Comments

NoggingsR

Spacing

Refer page 62, rule 6.2.1.5 (Building Practice) Noggings.

6.2.1.5

Check spacing requirements

3. Find information for Noggings (rules & supp. Table)

Spacing of noggings = 1.350m max.

1.350m

Size for Noggings = same as for common studs, 90 x 35

90 x 35

4. information for Studs at sides of Openings (Rules & Supp. Table No.)

Member Rule / Table

Size Comments

Studs at sides of openings R

R

T

Window/Door Opening Width

W7 Bedroom 1

W8 Bedroom 1

W12 Bedroom 2

W13 Bedroom 3

W3 Bath

W2 WC

W1 Laundry

W4 Kitchen

W10 Dining

W9 Lounge

W11-D6 Family

W6 Ensuite

W14-D15 W/shop

D1 Entry

Refer page 59, rule 6.2.1.2 (Building Practice) Common Studs.

6.2.1.2

Refer page 68, rule 6.3.2.3 (Member sizes) Jamb Studs.

6.3.2.3

Refer Supp. 6, Table 11 Jamb Studs – Tile Roof

11

Refer to window schedule for Opening Widths

Window Schedule: Window W

W7 Bedroom 1 0.970

W8 Bedroom 1 0.530

W12 Bedroom 2 1.690

W13 Bedroom 3 1.690

W3 Bath 0.970

W2 WC 0.850

W1 Laundry 0.970

W4 Kitchen 1.930

W10 Dining 2.330

W9 Lounge 2.770

W11-D6 Family 3.610

W6 Ensuite 0.970

W14-D15 W/shop 2.530

D1 Entry 0.900

2.7700.470 1.070 0.970 1.190 0.8500.8300.970 1.790 1.930 1.8101.310 0.4700.970 1.190 0.970 3.350

0.100 1.680

0.100

4.580 0.100

0.270 3.300 2.620 0.1001.0000.100 2.540 3.770

0.1000.750

2.1100.1001.4000.100

0.6000.100

4.250 0.250

0.350

0.530

0.1201.5502.7700.4703.6100.9501.6901.4301.6900.9502.530 0.950

22.910

2.3300.995

0.270 3.3050.100

2.730

0.100

0.500

0.100

2.930

0.100

3.770

0.100

7.660 0.250

1.00021.910

1.90

00.

100

1.69

00.

100

0.25

0

2.450

0.99

04.1

100.

250

1.80

0

3.440

0.25

0

3.94

04.2

10

0.60

00.

250

2.450

0.10

00.90

0 0.10

0

2.00

0

0.10

0

2.00

00.

250

1.80

01.

650

4.1

00

0.27

00.

270

7.6

10

8.15

0

.600

Direction of Ceiling Joists

Workshop

Bed3 Bed 2Family

Dining

Lounge

Bed 1

Entry

KitchenE.S.BathW.C.L'dry

Garage Hall

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

D12D13

D14

D15

W1 W2 W3 W4 W6 W7

W8

W9W10W11W12W13W14

Floor Plan John Bridges

August 2004

Member Rule / Table

Size Comments

Studs at sides of openings R

R

T

Window/Door Opening Width

W7 Bedroom 1

W8 Bedroom 1

W12 Bedroom 2

W13 Bedroom 3

W3 Bath

W2 WC

W1 Laundry

W4 Kitchen

W10 Dining

W9 Lounge

W11-D6 Family

W6 Ensuite

W14-D15 W/shop

D1 Entry

6.2.1.2

6.3.2.3

11

Fill in Opening Width information

0.9700.530

1.690

1.6900.970

0.850

0.9701.930

2.330

2.770

3.610

Go to Table 11 of supplements to size studs to suit opening widths

0.970

2.530

0.900

Table 11, supp.6MGP 15

Tile Roof

RLW (3.000)

Use Column

2006

W7 Bedroom 1Width = 0.970Height = 2.700

Jamb Studs for W7Will be 90 x 35Each side of opening

Go back & fill in Stud sizes for other openings

2006

Member Rule / Table

Size Comments

Studs at sides of openings R

R

T

Window/Door Opening Width

W7 Bedroom 1

W8 Bedroom 1

W12 Bedroom 2

W13 Bedroom 3

W3 Bath

W2 WC

W1 Laundry

W4 Kitchen

W10 Dining

W9 Lounge

W11-D6 Family

W6 Ensuite

W14-D15 W/shop

D1 Entry

6.2.1.2

6.3.2.3

11

0.970

0.5301.690

1.6900.970

0.850

0.9701.930

2.330

2.770

3.610

Window 7 – studs at sides of openings = 2/90 x 35

2/90 x35

Fill in remaining stud information using Table 11.

90 x 35

2/90 x 352/90 x 35 2/90 x 35

90 x 352/90 x 35

2/90 x 35

2/90 x 352/90 x 35

2/90 x 45

Next – Size Top & Bottom Plates

0.970

2.530

0.900

2/90 x 352/90 x 35

90 x 35

5. Find information for Top Plates (Rules & Supp. Table No.)

Member Rule / Table

Size Comments

Top Plates R

R

T

Top Plate

RLW

Tie Down Spacing

Refer page 62, rule 6.2.2.1 (Building Practice) Plates General.

Fill in Comments Column

Single storey Tie Roof

3.000m

1.800m

6.2.2.1

Refer page 73, rule 6.3.4 (Member Sizes) Top Plates.

6.3.4

Refer Supp. 6, Table 16 Top Plates (Tile Roof – Single or Upper Storey).

16

Check Table 16 for size of Top Plates

Rafter Spacing = 0.600m

Tie Down Spacing = 1.800

RLW = 3.000m

Stud spacing = 0.600

Top Plate Size = 35 x 90

35 x 90

2006

5. Find information for Top Plates (Rules & Supp. Table No.)

Member Rule / Table

Size Comments

Top Plates R

R

T

Top Plate

RLW

Tie Down Spacing

Refer page 62, rule 6.2.2.1 (Building Practice) Plates General.

Fill in Comments Column

Single storey Tile Roof

3.000m

1.800m

6.2.2.1

Refer page 73, rule 6.3.4 (Member Sizes) Top Plates.

6.3.4

Refer Supp. 6, Table 16 Top Plates (Tile Roof – Single or Upper Storey).

16

Check Table 16 for size of Top Plates

Enter Size for Top Plates

35 x 90

6. Find information for Bottom Plates (Rules & Supp. Table No.)

Member Rule / Table

Size Comments

Bottom Plates R

R

T

Bottom Plate

RLW

Rafter Spacing

Fill in Comments Column

Single storey Tile Roof

3.000m

0.600m

Refer page 62, rule 6.2.2.2 (Building Practice) Bottom Plates.

6.2.2.2

Refer page 72, rule 6.3.3 (Member Sizes) Bottom Plates.

6.3.3

Refer Supp. 6, Table 14 Bottom Plates (Tile Roof – Single or Upper Storey).

14

Check Table 14 for size of Bottom Plates.

Check Note 2 – Table 14For plate thickness if Walls are on Concrete Slabs.

Use 35 x 90 Bottom Plates

2006

6. Find information for Bottom Plates (Rules & Supp. Table No.)

Member Rule / Table

Size Comments

Bottom Plates R

R

T

Bottom Plate

RLW

Rafter Spacing

Fill in Comments Column

Single storey Tile Roof

3.000m

0.600m

Refer page 62, rule 6.2.2.2 (Building Practice) Bottom Plates.

6.2.2.2

Refer page 72, rule 6.3.3 (Member Sizes) Bottom Plates.

6.3.3

14

Check Table 14 for size of Bottom Plates.

Enter Size for Bottom Plates

35 x 90

7. Find information for Lintels (Rules & Supp. Table No.)

Member Rule / Table

Size Comments

Lintels R

R

T

Window/Door Opening Width

W7 Bedroom 1

W8 Bedroom 1

W12 Bedroom 2

W13 Bedroom 3

W3 Bath

W2 WC

W1 Laundry

W4 Kitchen

W10 Dining

W9 Lounge

W11-D6 Family

W6 Ensuite

W14-D15 W/shop

D1 Entry

0.9700.530

1.690

1.690

0.970

0.8500.970

1.930

2.330

2.7703.610

Fill in Opening Width information

Refer page 63, rule 6.2.3 (Building Practice) Openings.

6.2.3

Refer page 75, rule 6.3.6 (Member Sizes) Lintels.

6.3.6

Refer Supp. 6, Table 18 Lintels (Tile Roof – Single or Upper Storey).

18

Go to Table 18 to Size Lintels to suit opening widths.

0.970

2.5300.900

RLW = 3.000m

Rafter spacing = 0.600m

Use column for Max. Lintel Span

2006

W7 Bedroom 1Lintel span = 0.970

Lintel Size for W9 = 90 x 35

Size remaining Lintels

2006

Member Rule / Table

Size Comments

Lintels R

R

T

Window/Door Opening Width

W7 Bedroom 1

W8 Bedroom1

W12 Bedroom 2

W13 Bedroom 3

W3 Bath

W2 WC

W1 Laundry

W4 Kitchen

W10 Dining

W9 Lounge

W11-D6 Family

W6 Ensuite

W14-D15 W/shop

D1 Entry

6.2.3

6.3.6

18

Enter Lintel size for W7 Bedroom 1 (90 x 35).

90 x 35

Complete entering remaining Lintel sizes using Table 18

35 x 90

120 x 45120 x 45

90 x 35

35 x 9090 x 35

140 x 45

170 x 45

240 x 35290 x 45

0.9700.530

1.690

1.690

0.970

0.8500.970

1.930

2.330

2.7703.610

0.970

2.530

0.900

90 x 35

190 x 45

35 x 90

8. Find information for Eaves Beams (Rules & Supp. Table No.)

Member Rule / Table

Size Comments

Eaves Beams R

R

T

Location Span

RLW

Porch (Front entry)

Garage (At Roller Door)

Fill in Comments Column – (refer to plan for porch & garage opening spans)

3.000

2.110

2.770

2.7700.470 1.070 0.970 1.190 0.8500.8300.970 1.790 1.930 1.8101.310 0.4700.970 1.190 0.970 3.350

0.100 1.680

0.100

4.580 0.100

0.270 3.300 2.620 0.1001.0000.100 2.540 3.770

0.1000.750

2.1100.1001.400

0.1000.600

0.1004.250 0.250

0.350

0.530

0.1201.5502.7700.4703.6100.9501.6901.4301.6900.9502.530 0.950

22.910

2.3300.995

0.270 3.3050.100

2.730

0.100

0.500

0.100

2.930

0.100

3.770

0.100

7.660 0.250

1.00021.910

1.90

00.

100

1.69

00.

100

0.25

0

2.4

500.

990

4.11

00.

250

1.80

0

3.4

400.

250

3.94

04.

210

0.60

00.

250

2.4

500.

1000.90

0 0.10

0

2.00

0

0.10

0

2.00

00.

250

1.80

01.

650

4.10

0

0.27

00.

270

7.6

10

8.15

0

.600

Direction of Ceiling Joists

Workshop

Bed3 Bed 2Family

Dining

Lounge

Bed 1

Entry

KitchenE.S.BathW.C.L'dry

Garage Hall

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

D12D13

D14

D15

W1 W2 W3 W4 W6 W7

W8

W9W10W11W12W13W14

Floor Plan John Bridges

August 2004

Porch Span = 2.110Garage opening span = 2.770

8. Find information for Eaves Beams (Rules & Supp. Table No.)

6.3.7 Verandah beams (plates) The size of verandah beams shall be determined from Span Tables 51A of the Supplements for single span and continuous spans respectively. The ends of beams, which are supported on stud walls, shall be carried by jamb studs (with beams considered as lintels) or posts.

Refer page 75, rule 6.3.6 (Member Sizes) Lintels.

Refer Supp. 6, Table 18 Lintels (Tile Roof – Single or Upper Storey).

Go to Table 18 to Size Lintel to suit opening width for Porch Beam.

Member Rule / Table

Size Comments

Eaves Beams R

R

T

Location Span

RLW

Porch (Front entry)

Garage (At Roller Door)

3.000

2.110

2.770

6.3.7

6.3.6

18

RLW = 3.000

Rafter Spacing = 0.600

Beam Span = 2.110

Beam Size = 170 x 35

2006

8. Find information for Eaves Beams (Rules & Supp. Table No.)

Member Rule / Table

Size Comments

Eaves Beams R

R

T

Location Span

RLW

Porch (Front entry)

Garage (At Roller Door)

3.000

2.110

Find: Rule 6.3.7, page 78, Verandah Beams (Plates)

6.3.7 Verandah beams (plates) The size of verandah beams shall be determined from Span Tables 51A of the Supplements for single span and continuous spans respectively. The ends of beams, which are supported on stud walls, shall be carried by jamb studs (with beams considered as lintels) or posts.

6.3.7

Refer page 75, rule 6.3.6 (Member Sizes) Lintels.

6.3.6

Refer Supp. 6, Table 18 Lintels (Tile Roof – Single or Upper Storey).

18

Go to Table 18 to Size Lintel to suit opening width for Porch Beam.

Enter Size for Porch Beam from table 18 = 170 x 35

170 x 35

2.770

8. Find information for Eaves Beams (Rules & Supp. Table No.)

Member Rule / Table

Size Comments

Eaves Beams R

R

T

Location Span

RLW

Porch (Front entry)

Garage (At Roller Door)

3.000

2.110

6.3.7

6.3.6

18 170 x 35

2.770

Now use Rule 6.3.7, page 77, Verandah Beams (Plates) to size Beam to Garage

6.3.7 Verandah beams (plates) The size of verandah beams shall be determined from Span Tables 51A of the Supplements for single span and continuous spans respectively. The ends of beams, which are supported on stud walls, shall be carried by jamb studs (with beams considered as lintels) or posts.

Table 51A needs to be used to size Garage Beam as this Beam is supported on Brick work at each end and is sized as for a Verandah Beam – Single Span.

T 51A

Table 51A – Single Span

RLW = 3.000m

Rafter spacing = 0.600

Beam Span = 2.770

Tile Roof Load = 60kg/m2

Possible Beam Size to Garage with 70mmtoleranceOpening = 190 x 45

2006

Table 51A – Single Span

RLW = 3.000m

Rafter spacing = 0.600

Beam Span = 2.770

Tile Roof Load = 60kg/m2

Beam Size to GarageOpening = 240 x 45

8. Find information for Eaves Beams (Rules & Supp. Table No.)

Member Rule / Table

Size Comments

Eaves Beams R

R

T

Location Span

RLW

Porch (Front entry)

Garage (At Roller Door)

2.100

2.110

6.3.7

6.3.6

18 170 x 35

2.770

Now use Rule 6.3.7, page 78, Verandah Beams (Plates) to size Beam to Garage

6.3.7 Verandah beams (plates) The size of verandah beams shall be determined from Span Tables 51A of the Supplements for single span and continuous spans respectively. The ends of beams, which are supported on stud walls, shall be carried by jamb studs (with beams considered as lintels) or posts.

Table 51A needs to be used to size Garage Beam as this Beam is supported on Brick work at each end and is sized as for a Verandah Beam – Single Span.

T 51A

Enter Garage Beam size of 240 x 45

240 x 45

Exercise 2 – Wall Framing Complete