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.
Wrench Time
Related Terms
Fly-In/fly-Out (fifo)
WorkforceA rotation model where workers are flown to remote job sites for a set number of days, then returned home. Subcontractors must account for mobilisation costs and crew availability when bidding FIFO contracts. Rotation schedules vary widely, such as 14 days on and 14 days off.
Utilisation
WorkforceThe percentage of time your crew or equipment is actively deployed on billable work. Low utilisation means idle resources eating into your margins. Subcontractors track this closely to assess profitability and plan workforce levels.
Slip Fill
WorkforceA temporary worker brought in to cover a single shift vacancy without joining the regular crew rotation. Common in oil sands and remote site operations when a crewmember is absent unexpectedly. Subcontractors often use slip fills to maintain headcount without committing to long-term hires.
Load Ramp
WorkforceA gradual increase in work volume or crew deployment at the start of a project or contract. Subcontractors use load ramps to scale up equipment, labour, and invoicing in a controlled sequence. Understanding the ramp schedule helps avoid resource gaps and cash-flow shortfalls early in mobilisation.
JOLTS (Job Openings and Labour Turnover Survey)
WorkforceA monthly U.S. Bureau of Labor Statistics report tracking job openings, hires, and separations across industries. Field service contractors use it to benchmark labour demand and anticipate competition for skilled tradespeople. Rising JOLTS numbers often signal tighter crew availability and upward pressure on wage rates.
Nonemployer Establishment
WorkforceA business that generates revenue but has no paid employees — typically a sole proprietor or owner-operator. Many field subcontractors and independent tradespeople operate this way. Statistics Canada tracks these firms separately in labour and industry data.
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