Category: Quantities & pricing
Prepared by Eng. Ahmed Fathy, Projects Manager ·
Definition
Labour productivity is the work a worker or crew completes per unit of time, such as square metres of tiling or plaster per day. It varies with skill, complexity, sizes, weather, height and site organisation.
Why it matters on a project
It is the basis of labour cost in a unit rate and of activity durations in the programme. Assuming high productivity makes the offer lose money and the programme unrealistic.
Measurement and pricing
Labour cost per unit = crew day cost ÷ daily output.
Worked example
A tiling crew (tiler and helper) costs 450 SAR a day and lays 20 m²: labour cost 450 ÷ 20 = 22.5 SAR per square metre (illustrative figures).
Common mistake
Using ideal textbook productivity without allowing for summer heat, permitted working hours and site complexity.
Frequently asked questions
Where do I get realistic productivity?
From your own past project records first, then references, adjusted for site conditions.
Does summer affect productivity?
Yes, with midday outdoor work banned in summer the effective hours drop.
Related terms
- Unit rateThe item price per unit of measure, built from material, labour and equipment then indirect costs and profit.
- Direct costThe sum of material, labour and equipment cost of an item excluding overheads.
- Baseline programmeThe programme approved at project start against which progress is measured.
- Equipment costThe cost of plant used in the work, hired or owned.
Read next
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