The portable-versus-fixed decision is primarily operational. Compare where the task occurs, how often access is needed, what moves, who sets up the equipment, the travel surface, setup control, reach range, site congestion, and long-term changes.
Questions this guide organizes
- Location pattern
- Does work repeat at one controlled position, several nearby positions, or changing areas across the facility?
- Setup burden
- Who moves, places, levels, stabilizes, inspects, releases, and stores portable equipment before and after each use?
- Geometry range
- How much do vehicles, access points, reach, landing surfaces, spotting, obstructions, and working heights vary?
- Life-cycle context
- How do frequency, weather, floor or yard condition, congestion, maintenance, storage, expansion, and operational discipline affect the choice?
When to use this guide
- Early comparisons between a fixed platform at a repeatable service position and mobile access serving dispersed or occasional tasks.
- Facilities reviewing whether an existing portable practice remains suitable as task frequency, fleet, surface, traffic, or process needs change.
Related decisions to coordinate
- Fixed foundations, structure, egress, utilities, transfer equipment, and vehicle positioning versus mobile travel, setup, stabilization, and storage.
- Worker access, task posture, tools, enclosure or guarding, vehicle-departure prevention, inspection, and owner procedures for either path.
- Floor or yard surface, rails and thresholds, slopes, doors, congestion, weather, traffic, maintenance resources, and future positions.
What this guide does not decide
- Portable does not automatically mean flexible, and fixed does not automatically mean suitable; both must fit the full task and operating envelope.
- Purchase cost alone omits setup time, handling, storage, inspection, foundations, utilities, operating discipline, and future change.
- The owner and qualified reviewers must validate movement, stability, structure, access, fall exposure, ergonomics, and work procedure.
Information to gather
- Work locations, frequency, duration, crew, tools, worker posture, and the complete task and setup sequence.
- Vehicle or equipment profiles, access points, working-height range, reach, spotting tolerance, and obstructions.
- Marked travel path and setup areas with surface photos, slopes, thresholds, rails, doors, turns, traffic, and weather.
- Fixed-site foundation, egress, utility, process and transfer interfaces plus mobile handling, storage, and inspection needs.
- Future use cases, owner design basis, operations and safety contacts, and a comparison of life-cycle responsibilities.