1. Timber Wall Framing
Class Exercise 1

2. Reference Material
A.S (2006) Non Cyclonic

3. Details: Floor Plan – Same as Roofing Class Exercise 1
Brick Veneer Construction
Roof Pitch 300
Sheet Roofing 10Kg/m2
Eaves Width 450mm
Floor to Ceiling Height 2.700m
Wall Framing – Seasoned Softwood MGP 15
Concrete Raft Floor Slab
Wind Classification – N3

4. Wall Frame. (Supporting Conventional Roof Framing)
Determine the most economical size, span & spacing of the following members
Bottom Wall plate – not trenched.
Top Wall plate – not trenched (to support 1200mm c/c)
Common Studs at 600mm c/c (not notched for erection bracing)
Noggings
Jamb Studs (studs at sides of openings)
Lintels
Eaves Beams

5. Roofing Class Exercise 1
Floor Plan
Same as
Roofing Class Exercise 1

6. Use preliminary calcs from roofing ex. 1:
Rafter Span = Say
RLW Underpurlin = 2.1
Eaves Overhang = 0.693
Distance X = 1.728
Half spread of the fan strut = 1.211
Full spread of the fan strut = 2.422
Length of strut = 1.713

7. For roof mass use Table B1.1 p.219
1. Fill in General Information from Prelim. Calcs & Specification
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
For roof mass use Table B1.1 p.219

8. Table B1.1
Page 217
10kg/m2

9. For roof mass use Table B1.1 p.219
1. Fill in General Information from Prelim. Calcs & Specification
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
For roof mass use Table B1.1 p.219
Check Preliminary Calcs for rafter RLW & Eaves RLW

10. Calculate Eaves Overhang – Eaves RLW
TL O/Hang =
COS 30
= m
0.693m
RLW Eaves = 0.693m
0.150
0.450

11. Eaves RLW from preliminary calcs. = 0.693m
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
0.693m
Eaves RLW from preliminary calcs. = 0.693m

12. RLW on external wall will be Span of rafter plus overhang
Refer to page 27 of your standard
= 2.791
Say 2.800

13. B1.1 Brick veneer 2.700m .693m 2.800m 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
.693m
2.800m

14. Fill in Comments Column
2. Find information for Common Studs (rules & supp. Table)
Member
Rule / Table
Size
Comments
Common Studs R T
Stud Height
Stud Centers
Studs Notched
Rafter Spacing
2.700
0.600
90 x 35
Not notched
1.200m 7
Fill in Comments Column
Refer page 59, rule (Building Practice) Common Studs.
Refer page 66, rule (Member Sizes) Common Studs.
Refer Supp. 6, Table 7 Common Studs –
Single Storey not notched, 600mm c/c, sheet roof, 2.700m height, 1.200m rafter spacing,
RLW of min.
Select stud size x 35 (from table 7)

15. Refer page 62, rule 6.2.1.5 (Building Practice) Noggings.
3. Find information for Noggings (rules & supp. Table)
Member
Rule / Table
Size
Comments
Noggings R
Spacing
Refer page 62, rule (Building Practice) Noggings.
Check spacing requirements

16. 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.

17. FIGURE  6.6   NOGGING

18. Refer page 62, rule 6.2.1.5 (Building Practice) Noggings.
3. Find information for Noggings (rules & supp. Table)
Member
Rule / Table
Size
Comments
Noggings R
Spacing
1.350m
90 x 35
Refer page 62, rule (Building Practice) Noggings.
Check spacing requirements
Spacing of noggings = 1.350m max.
Size for Noggings = same as for common studs, 70 x 35

19. Find information for Studs at sides of Openings
(Rules & Supp. Table No.)
Member
Rule / Table
Size
Comments
Studs at sides of openings R T
Window/Door Opening Width
W9 Bedroom 1
W1 Bedroom 2
W8 Bedroom 3
W2 Bath & WC
W3 Laundry
W4 Kitchen
W5 Dining
W6 Living
W7 Family
D2 Entry
D1 Kitchen 11
Refer page 59, rule (Building Practice) Common Studs.
Refer page 68, rule (Member sizes) Jamb Studs.
Refer Supp. 6, Table 11 Jamb Studs – Sheet Roof
Refer to window schedule for Opening Widths

20. Window Schedule: Window H x W W9 Bedroom 1 1.550 1.800
W2 Bath & WC
W3 Laundry
W4 Kitchen
W5 Dining
W6 Living
W7 Family
D2 Entry
D1 Kitchen

21. Fill in Opening Width information
Member
Rule / Table
Size
Comments
Studs at sides of openings R T
Window/Door Opening Width
W9 Bedroom 1
W1 Bedroom 2
W8 Bedroom 3
W2 Bath & WC
W3 Laundry
W4 Kitchen
W5 Dining
W6 Living
W7 Family
D2 Entry
D1 Kitchen
1.800
1.200
1.200
1.800 11
1.350
1.650
1.200
1.850
1.850
1.350
0.900
Refer page 59, rule (Building Practice) Common Studs.
Refer page 68, rule (Member sizes) Jamb Studs.
Refer Supp. 6, Table 11 Jamb Studs – Sheet Roof
Refer to window schedule for Opening Widths
Fill in Opening Width information
Go to Table 11 of supplements to size studs to suit opening widths

22. Note that the minimum bearing length according to note 5 is 35mm
Remember the fine print from table 17, lintels
Note that the minimum bearing length according to note 5 is 35mm

23. This shows us that 2/90 x 35 jamb studs will support a max width of opening up to 4500 for a tin roof (and pretty much the same for a tile roof)

24. Window 9 – studs at sides of openings = 2 / 90 x 35
Member
Rule / Table
Size
Comments
Studs at sides of openings R T
Window/Door Opening Width
W9 Bedroom 1
W1 Bedroom 2
W8 Bedroom 3
W2 Bath & WC
W3 Laundry
W4 Kitchen
W5 Dining
W6 Living
W7 Family
D2 Entry
D1 Kitchen
2/90 x35
1.800
2/90 x35
1.200
2/90 x35
1.200
2/90 x35
1.800 11
2/90 x35
1.350
2/90 x35
1.650
2/90 x35
1.200
2/90 x35
1.850
2/90 x35
1.850
2/90 x35
1.350
90 x 35
0.900
Window 9 – studs at sides of openings = 2 / 90 x 35
Fill in remaining stud information using Table 11.
Next – Size Top & Bottom Plates

25. 5. Find information for Top Plates (Rules & Supp. Table No.)
Member
Rule / Table
Size
Comments
Top Plates R T
Top Plate
RLW
Tie Down Spacing
Single storey sheet roof
6.3.4
2.800m 15
1.200m
Fill in Comments Column
Refer page 62, rule (Building Practice) Plates General.
Refer page 73, rule (Member Sizes) Top Plates.
Refer Supp. 6, Table 15 Top Plates (Sheet Roof – Single or Upper Storey).
Check Table 15 for size of Top Plates

26. Top Plate Size = 35 x 90 RLW = 2.800m Rafter Spacing = 1.200m
Tie Down Spacing = 1.200
Stud spacing = 0.600
RLW = 2.800m
Top Plate Size
= 35 x 90
35 x 70

27. 5. Find information for Top Plates (Rules & Supp. Table No.)
Member
Rule / Table
Size
Comments
Top Plates R T
Top Plate
RLW
Tie Down Spacing
Single storey sheet roof
6.3.4
35 x 90
2.800m 15
1.200m
Fill in Comments Column
Refer page 62, rule (Building Practice) Plates General.
Refer page 73, rule (Member Sizes) Top Plates.
Refer Supp. 6, Table 15 Top Plates (Sheet Roof – Single or Upper Storey).
Check Table 15 for size of Top Plates
Enter Size for Top Plates

28. 6. Find information for Bottom Plates (Rules & Supp. Table No.)
Member
Rule / Table
Size
Comments
Bottom Plates R T
Bottom Plate
RLW
Rafter Spacing
Single storey sheet roof
6.3.3
2.800m 14
1.200m
Fill in Comments Column
Refer page 62, rule (Building Practice) Bottom Plates.
Refer page 72, rule (Member Sizes) Bottom Plates.
Refer Supp. 6, Table 14 Bottom Plates (Sheet Roof – Single or Upper Storey).
Check Table 14 for size of Bottom Plates.

29. Use 35 x 90 Bottom Plates Check Note 2 – Table 14
For plate thickness if
Walls are on Concrete Slabs.

30. 6. Find information for Bottom Plates (Rules & Supp. Table No.)
Member
Rule / Table
Size
Comments
Bottom Plates R T
Bottom Plate
RLW
Rafter Spacing
Single storey sheet roof
35 x 90
6.3.3
2.800m 14
1.200m
Fill in Comments Column
Refer page 62, rule (Building Practice) Bottom Plates.
Refer page 72, rule (Member Sizes) Bottom Plates.
Check Table 14 for size of Bottom Plates.
Enter Size for Bottom Plates

31. 7. Find information for Lintels (Rules & Supp. Table No.)
Member
Rule / Table
Size
Comments
Lintels R T
Window/Door Opening Width
W9 Bedroom 1
W1 Bedroom 2
W8 Bedroom 3
W2 Bath & WC
W3 Laundry
W4 Kitchen
W5 Dining
W6 Living
W7 Family
D2 Entry
D1 Kitchen
6.2.3
1.800
6.3.6
1.200
1.200 17
1.800
1.350
1.650
1.200
1.850
1.850
1.350
0.900
Fill in Opening Width information
Refer page 63, rule (Building Practice) Openings.
Refer page 75, rule (Member Sizes) Lintels.
Refer Supp. 6, Table 17 Lintels (Sheet Roof – Single or Upper Storey).
Go to Table 17 to Size Lintels to suit opening widths.

32. RLW = 2.800m
Rafter spacing = 1.200m
Use column for
Max. Lintel Span

33. W9 Bedroom 1
Lintel span = 1.800
Lintel Size for
W9 = 120 x 35
NOTE:
120 x 35 Lintel is used
because it is the most
cost effective, as opposed
to using 2/90 x 35.
Size remaining Lintels

34. Enter Lintel size for W9 Bedroom 1 (120 x 35).
Member
Rule / Table
Size
Comments
Lintels R T
Window/Door Opening Width
W9 Bedroom 1
W1 Bedroom 2
W8 Bedroom 3
W2 Bath & WC
W3 Laundry
W4 Kitchen
W5 Dining
W6 Living
W7 Family
D2 Entry
D1 Kitchen
6.2.3
120 x 35
1.800
6.3.6
90 x 35
1.200
90 x 35
1.200 17
120 x 35
1.800
90 x 35
1.350
90 x 45
1.650
90 x 35
1.200
120 x 35
1.850
120 x 35
1.850
90 x 35
1.350
35 x 90
0.900
Fill in Opening Width information
Refer page 63, rule (Building Practice) Openings.
Refer page 75, rule (Member Sizes) Lintels.
Refer Supp. 6, Table 17 Lintels (Sheet Roof – Single or Upper Storey).
Enter Lintel size for W9 Bedroom 1 (120 x 35).
Complete entering remaining Lintel sizes

35. 8. Find information for Eaves Beams (Rules & Supp. Table No.)
Member
Rule / Table
Size
Comments
Eaves Beams R T
Location Span
RLW
Porch (Front entry)
2.100
1.800
Fill in Comments Column – (refer to plan for porch span)

36. Entrance Span = 1.800
Single Span Member
(Eaves or Verandah Beam)

37. 8. Find information for Eaves Beams (Rules & Supp. Table No.)
Member
Rule / Table
Size
Comments
Eaves Beams R T
Location Span
RLW
Front entry
6.3.7
2.800
6.3.6
1.800 17
Find: Rule 6.3.7, page 78, Verandah Beams (Plates)
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 (Member Sizes) Lintels.
Refer Supp. 6, Table 17 Lintels (Sheet Roof – Single or Upper Storey).
Go to Table 17 to Size Lintels to suit opening widths.

38. RLW = 2.800
Rafter Spacing = 1.200
Beam Span = 1.800
Beam Size = 120 x 35

39. 8. Find information for Eaves Beams (Rules & Supp. Table No.)
Member
Rule / Table
Size
Comments
Eaves Beams R T
Location Span
RLW
Front entry
6.3.7
120 x 35
2.800
6.3.6
1.800 17
Find: Rule 6.3.7, page 78, Verandah Beams (Plates)
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 (Member Sizes) Lintels.
Refer Supp. 6, Table 17 Lintels (Sheet Roof – Single or Upper Storey).
Go to Table 17 to Size Lintels to suit opening widths.
Enter Size from table 17 = 120 x 35

40. Exercise 1 – Wall Framing Complete