Managing Construction Labour in an Uncertain Waikato Market

 

Labour is one of the largest costs and greatest operational risks in commercial construction.

A contractor needs enough skilled workers to meet programme requirements, but carrying excess labour during project delays can quickly reduce profitability.

This challenge is particularly relevant for commercial construction companies working across Hamilton, Cambridge and Waikato, where projects may be spread across different locations and sectors.

Construction demand remains uneven

The Ministry of Business, Innovation and Employment forecasts national construction activity to begin recovering from 2026. However, the recovery remains exposed to project financing, inflation, changing input costs and delays. (MBIE)

A project shown on a programme may not begin on its planned date.

Resource consent, building consent, design, procurement or finance issues can shift mobilisation by weeks or months.

This uncertainty makes workforce planning difficult.

Build labour forecasts from project tasks

A labour forecast should begin with the work required, not the number of workers currently available.

For each project, identify:

• Tasks
• Quantities
• Budgeted labour hours
• Required sequence
• Planned start date
• Planned completion date
• Expected productivity
• Crew composition
• Supervision requirements
• Key milestones
• Known constraints

This creates a daily or weekly labour-demand forecast.

The forecast can then be compared with available carpenters, apprentices, foremen and project managers.

Separate committed work from possible work

Construction businesses often overestimate future workload by including every tender within the same forecast.

A more reliable system separates projects into:

• Contracted and mobilised
• Contracted but awaiting commencement
• Preferred contractor
• Tender submitted
• Early opportunity

Each category should carry a different level of confidence.

Recruitment and major equipment decisions should not be based entirely on unconfirmed tenders.

Supervision must be forecast separately

Adding workers does not guarantee greater production.

Every crew requires suitable leadership and coordination.

Foremen and supervisors are responsible for:

• Daily planning
• Worker allocation
• Site coordination
• Quality control
• Health and safety
• Timesheet approval
• Material planning
• Variation records
• Client communication
• Progress reporting

When supervision is stretched across too many workers or sites, productivity and quality can decline.

A labour programme should therefore forecast supervisory requirements separately from trade labour.

Measure productivity by task

Total weekly hours provide limited information unless they are connected to completed work.

Useful productivity measures include:

• Labour hours per door
• Labour hours per room
• Labour hours per square metre
• Labour hours per unit
• Labour hours per floor
• Labour hours per linear metre

Actual performance should be compared with tender allowances.

When productivity differs, management should investigate the cause instead of assuming workers are simply performing poorly.

The cause may be:

• Restricted access
• Missing materials
• Design changes
• Congestion
• Rework by other trades
• Unavailable work areas
• Poor sequencing
• Inadequate equipment
• Inexperienced crew composition
• Unrealistic tender allowances

Daily reporting improves decisions

Labour information should be entered while site events are still fresh.

A useful daily report includes:

• Workers on site
• Hours by task
• Work completed
• Delays
• Variation work
• Materials required
• Quality issues
• Safety issues
• Planned work for the next day

This information enables project managers to update forecasts continuously.

Savannah Construction applies structured labour reporting and programme forecasting across commercial carpentry and construction projects throughout Hamilton, Cambridge and the wider Waikato.

Further details about Savannah Construction’s project delivery capabilities can be found at www.savannahconstruction.co.nz.

Regional travel affects productivity

Waikato construction work frequently requires workers and supervisors to travel between Hamilton, Cambridge, Te Awamutu, Morrinsville, Taupō and other locations.

Travel can affect:

• Paid hours
• Vehicle expenses
• Fuel consumption
• Worker fatigue
• Site start times
• Material collection
• Supervisor availability

Travel requirements should be considered during tendering and labour allocation.

Moving workers between sites during the working day should be minimised unless the benefit clearly exceeds the lost productive time.

Use flexible labour carefully

Labour hire and subcontract labour can help manage short-term peaks, but they may involve higher hourly costs and greater supervision requirements.

Before using external labour, consider:

• Skill level
• Site familiarity
• Productivity
• Health and safety competency
• Tools
• Transport
• Supervision
• Employment status
• Contract requirements
• Quality expectations

The lowest hourly rate does not always produce the lowest installed cost.

An experienced worker may complete the task faster, require less supervision and produce less rework.

Retain core capability

During slower periods, construction businesses may reduce labour to protect cashflow.

However, losing experienced foremen and skilled tradespeople can limit the ability to respond when the market improves.

Core capability should be assessed based on:

• Technical skill
• Leadership
• Reliability
• Productivity
• Safety
• Quality
• Ability to train others
• Client relationships
• Specialist experience

The strongest workforce is not necessarily the largest. It is the workforce that can be accurately planned, effectively supervised and productively deployed across suitable projects.