Stair geometry
Why stairwells create a distinct access challenge
A staircase combines changing elevation, limited footprint, handrails, landings, wall clearances, and an access route used by people and materials. A platform that appears to fit above the steps can still conflict with a rail, door, light, ceiling, landing transition, or required egress route. Configuration review begins with the complete stairwell rather than a desired platform height alone.
Measure each flight separately. Record stair width, tread depth, riser height, number of treads, landing length and width, floor-to-floor height, rail height, wall spacing, and available base or support areas. Include photographs looking up and down every flight, plus any turns or changes in width.
Adjustable legs and base components may help address differences in elevation only where documented for the selected system. Their adjustment range, support locations, base plates, and complete scaffold arrangement must be confirmed. Never assume that placing different legs on separate treads is approved because it appears level.
Work planning
Position the platform around the task
Describe whether the work involves painting, finishing, lighting, ceiling access, electrical work, wall maintenance, inspection, or another task. Identify the exact work zones, required platform area, platform height, working height, tools, materials, and number of workers. These details help distinguish overhead access from wall-facing access and clarify whether one position or several stages require review.
Handrail and wall clearance deserve separate measurements. Record projections, newel posts, balusters, wall fixtures, doors, sprinklers, ducts, and other obstructions. Note whether the staircase must remain in service and which authorized route will be used during assembly and work. Website content does not approve closing, bridging, or obstructing a required route.
Interior finish surfaces also matter. Document floors and treads without assuming a base component is appropriate for tile, wood, carpet, concrete, metal, or a protective covering. Supporting-surface evaluation, load distribution, protection, and site controls remain project responsibilities.
