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Measuring Productivity


Builders' Guide on Measuring Productivity

This guidebook sets out the best practices on how to measure the productivity for the 12 key trades which are commonly found in most construction projects. The Productivity Monitoring Forms that have been developed for each of the key trades gave the activities and parameters that the builders should monitor and measure. Through these forms, the builders would be able to adopt a common platform to measure the trade productivity. To complement the forms, the activities involved in each trade are illustrated through flowcharts and photographs

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Table 1 shows trade productivity indicators established for 12 key trades in recent years. Contractors may measure and benchmark their trade productivity against the indicators to track their own productivity performance.

Table 1: Trade Productivity Indicators for 12 Key Trades

S/N
Trades
Unit of Measurement
Average Trade Productivity
1
Formwork
(Tableform for slab/beam)
m2/manhour
2.30
2
Mesh placing and fixing
(Slab)
kg/manhour
142
3
Concrete placement
(Slab, using stationary concrete pump)
m3/manhour
1.85
4
Drywall
(12 mm thick board)
m2/manhour
2.25
5
Painting
(Emulsion 3 coats, using roller)
m2/manhour
5.50
6
Timber door installation
(Dimensions 2100 mm x 950 mm)
num/manhour
0.34
7
Wall tiling
(Using adhesive to lay ceramic tiles)
m2/ manhour
1.02
8
Floor tiling
(Using adhesive to lay ceramic tiles)
m2/manhour
2.03
9
Suspended ceiling
(Exposed grid system)
m2/ manhour
5.04
10
Air-con ducting (Metal)
a)
Formed and insulated on-site
m2/manhour
2.90
b)
Pre-formed and pre-insulated
m2/ manhour
4.20
11
Electrical conduit installation
(20 mm diameter uPVC electrical conduit fixed to ceiling)
m/manhour
2.71
12
Water pipe installation
(20 mm diameter copper pipe concealed in wall)
m/manhour
1.65