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Workforce Glossary Term

Peak Shaving

Strategically deploying extra crews or equipment during high-demand periods to prevent project bottlenecks. Subcontractors are often called in specifically for peak shaving when primary workforces are stretched. It creates short-term contract opportunities but requires rapid mobilisation.

Related Terms

Wrench Time

Workforce

The percentage of a technician's shift spent on hands-on productive work versus travel, waiting, or admin tasks. For subcontractors, low wrench time means billing inefficiencies and reduced daily output. Clients often track it to evaluate crew productivity on site.

Colocation

Workforce

When a subcontractor embeds personnel or equipment at a client's site for an extended engagement. This reduces mobilisation costs and improves response time for ongoing work. It is common on large construction or production sites requiring continuous support.

Back Wages

Workforce

Unpaid earnings owed to workers for hours already worked. For subcontractors, this often arises from payroll errors, misclassification, or disputed overtime on remote job sites. Unresolved back wage claims can trigger labour audits and project holdbacks.

Differentials

Workforce

Extra pay rates added on top of base wages for working in hazardous conditions, remote locations, or off-hours shifts. Subcontractors must account for differentials when pricing bids and building crew budgets. Common examples include night shift, H2S zone, and fly-in/fly-out premiums.

Horizontal Joint Employment

Workforce

Occurs when two unrelated companies — such as a labour agency and a subcontractor — are considered co-employers of the same worker. Both parties may share legal responsibility for wages, overtime, and labour standards compliance. Field service firms must understand this to avoid unexpected liability for workers hired through third-party staffing arrangements.

Churn

Workforce

The rate at which workers leave and must be replaced within a field crew or subcontractor roster. High churn drives up recruiting and onboarding costs, disrupts project continuity, and strains client relationships.

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