Estimating seminar 2 glazing answer

1. No Item Unit Quantity Rate (RM) TOTAL (RM)
1
2
10mm thick laminated tempered glass
Aluminiumframe
m2
m
17.82
30.00
9.50x10.764=
102.26
6.50
1767.05 x1.2=
2120.46
6.50x30=195
139.86
No Item Unit Quantity Hr /Unit Time required
1
2
3
4
Handling 15 mins/m2
Cutting glass 30 mins/m2
Erect frame 30mins/m
Fixingglass 40 mins/m2
m2
m2
m
m2
17.28
17.28
30.00
17.28
0.25-(15/60)
0.50
0.50
0.67
4.32
8.64
15.00
11.58
39.54
CHAPTER 10 - GLAZING WORK
Seminarquestion
Answer
Step 1:Take offquantity
Step 2:Estimate materialcost Step 3:
Estimate labour cost Step 4:Allow
estimating factor
Step 5:Total cost includingprofit and overhead
Step 1: Take off quantity
No Item Unit Calculation Quantity
1
2
10mm thick laminated tempered glass
Aluminiumframe (perimeter)
m2
m
= 4.8x3.6
= (4.8 x 2) + (3.6 x 5) + 2.40
17.28
30.00
Step 2: Estimate material cost
*1m2 is approximately 10.763ft2 = 10.76 / 1m=3.281ft
Step 3: Estimate labour cost
Total Material Cost 2315.46
Total Labour Cost
= 80 / 8 x 39.54
= RM 395.40
Step 4: Allow estimating factor
Total Time Required
Wastage to glass 10% of glass cost = 2120.46 x 0.10 = 212.05
Wastage to frame 15% of frame cost = 195 x 0.15 = 29.25
Accessories 5% of material cost = 2315.46 x 0.05 = 115.77
Sealant 3% of material cost = 2315.46 x 0.03 = 69.46
Total EstimatingFactor 426.53
Step 5: Total cost including profit and overhead
Material 2315.46
Labour 595.40
EstimatingFactor 426.53
Total 3137.39
3137.39 + 10% Profit + 5% Overhead
+
TOTAL 3608