Job Site Analysis (JSA)

Understanding the physical demands of work to protect your team. A Job Site Analysis (JSA) focuses on the ergonomic demands of a job rather than the safety procedures for performing it.

At Mercer Safety, we go beyond observation. We engage directly with workers to understand the physical challenges they face, and we translate those findings into practical recommendations that reduce strain, improve efficiency and protect long-term health.

Our consultants examine each task step by step—evaluating factors like frequency, duration, force, posture and positioning—to identify risks that may contribute to musculoskeletal injuries or fatigue.

Job Site Analysis focuses on physical and ergonomic demands (how the body is affected by the work). This differs from our Job Safety Analysis service offering, which focuses on hazards and controls (how to perform the job safely).

Through our Job Site Analysis service, your organization will:

  • Identify ergonomic stressors before they lead to injury or lost time.

  • Gain a clear breakdown of the physical demands required for specific tasks.

  • Support disability management and return-to-work planning with objective job demand data.

  • Strengthen compliance with occupational health best practices.

By distinguishing the physical demands from the safety procedures, Mercer Safety helps employers address both ergonomic health risks and operational safety risks—ensuring full-spectrum protection for your workforce.

Protect your team’s health. Reduce strain. Build stronger workplaces.