# Timber Wall Framing Class Exercise 2.

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Timber Wall Framing Class Exercise 2

Reference Material A.S (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 Bottom Wall plate – not trenched. Top Wall plate – not trenched (to support 600mm c/c) Common Studs at 600mm c/c (not notched for erection bracing) Noggings Jamb Studs (studs at sides of openings) Lintels Eaves Beams (Verandah Beams) Tie down spacing 1.800

Use Preliminary Calculations from Roofing exercise 2.
Summary RLW Rafter = say 2.100 RLW Eaves = 0.788 Purlin Set out = 1.872 Half spread fan strut = 0.671 Fan Strut Length = 0.931

Roofing Class Exercise 2
Floor Plan Same as Roofing Class Exercise 2

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 Overhang RLW S/softwood MGP 15 6 - N3 60Kg/m B1.1 Brick veneer 2.700m For roof mass use Table B1.1 p.219 Check Preliminary Calcs for rafter RLW & Eaves RLW

Calculate Eaves Overhang – Eaves RLW
0.150 0.600 TL O/Hang = COS 18 = m 0.788m RLW Eaves = 0.788m

Eaves RLW from preliminary calcs. = 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 0.788m Eaves RLW from preliminary calcs. = 0.788m

S ay 3.000 RLW = Span + Overhang 2.064m + .788 = 2.852
Calculate Common Rafter Span - RLW 4.127 Span = 4.127 2 = m 2.064 RLW = Span + Overhang 2.064m = 2.852 S ay 3.000

B1.1 Brick veneer 2.700m 0.788m 3.000m 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 0.788m 3.000m

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 0.600m 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, Tile roof, 2.700m Height, 0.600m Rafter spacing, RLW of 3000 Select stud size x 35 (from table 7) Plan shows 100mm wide walls – will use 90 x 35 as per A.S Table 7

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

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.

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, 90 x 35

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 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 11 Refer page 59, rule (Building Practice) Common Studs. Refer page 68, rule (Member sizes) Jamb Studs. Refer Supp. 6, Table 11 Jamb Studs – Tile Roof Refer to window schedule for Opening Widths

Window Schedule: Window W W7 Bedroom 1 0.970 W8 Bedroom 1 0.530
W3 Bath W2 WC W1 Laundry W4 Kitchen W10 Dining W9 Lounge W11-D6 Family W6 Ensuite W14-D15 W/shop D1 Entry

Fill in Opening Width information
Member Rule / Table Size Comments Studs at sides of openings 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 0.970 0.530 1.690 1.690 0.970 11 0.850 0.970 1.930 2.330 2.770 3.610 0.970 2.530 0.900 Fill in Opening Width information Go to Table 11 of supplements to size studs to suit opening widths

Table 11, supp.6 MGP 15 2006 RLW (3.000) Tile Roof Use Column

Jamb Studs for W7 Will be 90 x 35 Each side of opening W7 Bedroom 1
2006 Jamb Studs for W7 Will be 90 x 35 Each side of opening W7 Bedroom 1 Width = 0.970 Height = 2.700 Go back & fill in Stud sizes for other openings

Window 7 – 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 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 2/90 x35 0.970 90 x 35 0.530 2/90 x 35 1.690 2/90 x 35 1.690 2/90 x 35 0.970 11 90 x 35 0.850 2/90 x 35 0.970 1.930 2/90 x 35 2.330 2/90 x 35 2/90 x 35 2.770 2/90 x 45 3.610 2/90 x 35 0.970 2/90 x 35 2.530 90 x 35 0.900 Window 7 – studs at sides of openings = 2/90 x 35 Fill in remaining stud information using Table 11. Next – Size Top & Bottom Plates

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 Tie Roof 6.3.4 3.000m 16 1.800m Fill in Comments Column Refer page 62, rule (Building Practice) Plates General. Refer page 73, rule (Member Sizes) Top Plates. Refer Supp. 6, Table 16 Top Plates (Tile Roof – Single or Upper Storey). Check Table 16 for size of Top Plates

Top Plate Size = 35 x 90 RLW = 3.000m Rafter Spacing = 0.600m
2006 Rafter Spacing = 0.600m Tie Down Spacing = 1.800 Stud spacing = 0.600 RLW = 3.000m Top Plate Size = 35 x 90 35 x 90

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 Tile Roof 6.3.4 35 x 90 3.000m 16 1.800m Fill in Comments Column Refer page 62, rule (Building Practice) Plates General. Refer page 73, rule (Member Sizes) Top Plates. Refer Supp. 6, Table 16 Top Plates (Tile Roof – Single or Upper Storey). Check Table 16 for size of Top Plates Enter Size for Top Plates

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 Tile Roof 6.3.3 3.000m 14 0.600m 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 (Tile Roof – Single or Upper Storey). Check Table 14 for size of Bottom Plates.

Use 35 x 90 Bottom Plates Check Note 2 – Table 14
2006 Use 35 x 90 Bottom Plates Check Note 2 – Table 14 For plate thickness if Walls are on Concrete Slabs.

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 Tile Roof 35 x 90 6.3.3 3.000m 14 0.600m 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

7. Find information for Lintels (Rules & Supp. Table No.)
Member Rule / Table Size Comments Lintels 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 6.2.3 0.970 0.530 6.3.6 1.690 1.690 18 0.970 0.850 0.970 1.930 2.330 2.770 3.610 0.970 2.530 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 18 Lintels (Tile Roof – Single or Upper Storey). Go to Table 18 to Size Lintels to suit opening widths.

RLW = 3.000m Rafter spacing = 0.600m Use column for Max. Lintel Span
2006 RLW = 3.000m Rafter spacing = 0.600m Use column for Max. Lintel Span

Size remaining Lintels
2006 W7 Bedroom 1 Lintel span = 0.970 Lintel Size for W9 = 90 x 35 Size remaining Lintels

Complete entering remaining Lintel sizes using Table 18
Member Rule / Table Size Comments Lintels 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 90 x 35 0.970 35 x 90 0.530 6.3.6 120 x 45 1.690 120 x 45 1.690 18 90 x 35 0.970 35 x 90 0.850 90 x 35 0.970 140 x 45 1.930 170 x 45 2.330 240 x 35 2.770 290 x 45 3.610 90 x 35 0.970 190 x 45 2.530 35 x 90 0.900 Enter Lintel size for W7 Bedroom 1 (90 x 35). Complete entering remaining Lintel sizes using Table 18

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) Garage (At Roller Door) 3.000 2.110 2.770 Fill in Comments Column – (refer to plan for porch & garage opening spans)

Garage opening span = 2.770 Porch Span = 2.110

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) Garage (At Roller Door) 6.3.7 3.000 6.3.6 2.110 18 2.770 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 18 Lintels (Tile Roof – Single or Upper Storey). Go to Table 18 to Size Lintel to suit opening width for Porch Beam.

RLW = 3.000 Rafter Spacing = 0.600 Beam Span = 2.110
2006 RLW = 3.000 Rafter Spacing = 0.600 Beam Span = 2.110 Beam Size = 170 x 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) Garage (At Roller Door) 6.3.7 3.000 6.3.6 170 x 35 2.110 18 2.770 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 18 Lintels (Tile Roof – Single or Upper Storey). 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

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) Garage (At Roller Door) 6.3.7 6.3.6 3.000 18 170 x 35 2.110 T A 2.770 Now use Rule 6.3.7, page 77, Verandah Beams (Plates) to size Beam to Garage 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.

Possible Beam Size to Garage with 70mm tolerance Opening = 190 x 45
2006 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 70mm tolerance Opening = 190 x 45

Beam Size to Garage Opening = 240 x 45 Table 51A – Single Span
RLW = 3.000m Rafter spacing = 0.600 Beam Span = 2.770 Tile Roof Load = 60kg/m2 Beam Size to Garage Opening = 240 x 45

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) Garage (At Roller Door) 6.3.7 6.3.6 2.100 18 170 x 35 2.110 T A 240 x 45 2.770 Now use Rule 6.3.7, page 78, Verandah Beams (Plates) to size Beam to Garage 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. Enter Garage Beam size of 240 x 45

Exercise 2 – Wall Framing Complete