The transitional period between peak and slow seasons when project volumes drop and scheduling becomes unpredictable. Subcontractors often face reduced call-outs, crew utilisation gaps, and tighter margins during these windows. Common in oilsands and construction work between summer and winter campaigns.
Shoulder Season
Related Terms
Labour Burden Rate
WorkforceThe total cost of employing a field worker beyond their base wage, expressed as a percentage. It includes CPP (Canada Pension Plan), EI (Employment Insurance), WCB (Workers' Compensation Board) premiums, and benefits. Subcontractors must factor this rate into crew pricing to avoid underbidding contracts.
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.
Not Seasonally Adjusted
WorkforceRaw labour or economic data reported without smoothing for seasonal patterns. For subcontractors, this means figures reflect real hiring spikes and slowdowns, such as spring breakup or winter shutdowns. Use NSA data to benchmark your actual crew demand cycles.
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.
Industrial Action
WorkforceOrganised work stoppages or slowdowns by unionised labour, such as strikes or lockouts, that can halt site operations. Subcontractors may face project delays, contract disputes, or force majeure claims as a result. Review your MSA carefully for provisions covering liability during third-party industrial action.
Churn
WorkforceThe 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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