Scaffold Access Calculator

Stairway and ladder access from scaffold height.

Scaffold length (ft)

Scaffold height (ft)

Number of lifts

Access Type

Number of workers

Tab to move between fields

Access points required

Stairway recommended (1=yes)0

Stairway tower frames0

Ladders needed2

Landing platforms0

Self-closing gates2

Workers Per Access4

How to Use This Calculator

Enter scaffold length (ft), height (ft), number of lifts, and select access type (ladder or stairway).
Enter number of workers.
Review access points needed and whether a stairway tower is recommended by OSHA.
Check tower frames needed and ladders required based on worker count and scaffold height.
OSHA requires stairway access for scaffolds over 2 feet in height when frequent access is needed.

How the result changes with Scaffold length (ft)

Scaffold length (ft): Total horizontal run of the scaffold. Access must be within 50 ft of all workers.
Scaffold height (ft): Total height of the scaffold from ground to top platform.
Number of lifts: Vertical tiers. Stairway towers are recommended above 4 lifts.
Access Type: Select scaffold access method
Number of workers: Workers using the scaffold, affects traffic per access point.

Access points required: Number of ladder or stairway access points needed (one per 50 ft of scaffold).
Stairway recommended (1=yes): 1 if scaffold is tall enough (>4 lifts) that stairway towers are recommended over ladders.
Stairway tower frames: Additional frames needed if using stairway tower access (0 if using ladders).
Ladders needed: Number of access ladders if using ladder access (0 if using stairway towers).
Landing platforms: Rest/landing platforms for stairway towers (one per lift per tower).
Self-closing gates: Number of self-closing access gate openings needed in guardrails.

Identify Input Parameters
4 parameters
Scaffold length (ft) = 100, Scaffold height (ft) = 30, Number of lifts = 4, Access Type = 0 = 5 input(s) provided
Calculate Access points required
Access points required = max(1, ceil(scaffoldLength / 50))
2 = 2
Calculate Stairway recommended
0 = 0
Calculate Stairway tower frames
Stairway tower frames = towerFramesPerPoint * accessPointsNeeded
0 = 0