Early Start Dates for Desklib Construction Project

Q2)
EARLY START DATES
Preliminaries
Item Particulars Unit Quantity Rate Total
cost
1 1. Consultant fee
2. Authorities fees incl DA, CC,
inspections, LSL Levy and
contributions
3. Demolition and site clearing
4. Home warrant insurance
Appliance Protection Plan = 4
Appliance Service Contract = 2
Home Maintenance Plan = 1
Home Protection Plan = 3
Home Appliance Insurance = 3
Appliance Repair Service = 5
Supply (PC) $2,500
5. Contractors risk insuarance
Fire, lightning, explosion = 1.0 M
Landslide, subsidence and rockslide = 1.0 M
Burglary and theft = 1.0 M
Collapse, damage due to foreign objects,
impact damages = 1.0
Supply (PC) = 0.5% of the
total amount
Item
Item
Item
No
%
1
1
1
16
4.0 M
$50,000
$112,000
$10,000
$2,500
0.005
$50,000
$112,000
$10,000
$40,000
$20,000

6. Scaffolding
Baker staging
Length = 1.8 m
Width = 0.74 m
Area = 1.332 m2
Number of scaffold = 1389 pieces
Total area = 1850 m2
Supply (PC) = $30
Labour 3.0 hrs @ $5/hr = $15
$45
7. Protections of facilities and
accommodation
8. Site fence/hoarding
Length of area to be fence = 16.5 m
Width of area to be fence = 16.0 m
Total perimeter = 2(length + width)
= 2(16.5 m + 16.0)
= 65 m
Supply of 65mm fence = $10
Labour 1.00 m @ $5/m = $5
$15
9. Rubbish removal
Labour 10.0 m2 @ $500/m2 = $5000
10. Traffic control
11. Direct site labour
Digging trenches = 1.0 M
Laying foundations = 1.0 M
Building walls = 1.0 M
Plastering = 0.5 M
Fitting windows = 0.5 M
Supply (PC) = 7.5% of the
M2
Item
M
Item
Item
%
1850
65
1
1
4.0 M
$45
15
$5,000
$1,000
0.075
$83250
$10,500
$1,000
$5,000
$1,000
$300,000

total
12. Temporary services
13. Builder’s margin
Cost of goods sold $3.7 M.
Revenue $4.0 M.
Calculate the gross profit by
subtracting costs from revenue. $4.0
M - $3.7 M = $0.3 M
Divide gross profit by revenue: $0.3
M / $4.0 M = 0.075 .
percentages: 0.075 * 100 = 7.5%
Item
%
1
4.0 M
$3,000
0.075
$3,000
$300,000
Total $935,750
Summary
All preliminary will be considered all on the start dates

Groundwork
Bulk excavation for general site preparation
Ite
m
Particulars Unit Quantity Rate $ Cost
2 Bulk excavation m3 150 $1000 $150,000
Overall bulk area of excavation (plus working
space) = (12.83 + 4.08 + 2.00) x (11.87 +
2.00)
= 18.91 x 13.87 = 262.28
Estimated depths at corners: NE – 0.69m,
NW - 0.55m, SE – 0.50 and SW – 0.45)
Average depth = (0.690 + 0.54 + 0.45 +
0.40)/4 = 0.55m
Volume of bulk excavation = area x depth
= 262.28m2 x 0.55m = 144.25
Assume that only one side is battered =
18.91m x 1.0m wide x 0.55m = 10.40m3
Since battering is done at 45 degrees, battered
volume is = 0.5 x 10.40 = 5.20
Total volume of bulk excavation = 144.25 +
5.20 = 149.45
Summary: