Definition - What does Platform Ladder mean?
A platform ladder is a self-supporting, non-adjustable ladder that features a platform at the top from which workers may perform their tasks. For most applications, there are no special requirements laid down by OSHA with regards to platform ladders. However, general regulations applicable to ladders should be observed in order to safeguard worker health.
Safeopedia explains Platform Ladder
Accidents, fatalities and injuries linked to ladder use are extremely common and all ladders are required to comply with safety standards. Rungs should not be used as platforms owing to the increased possibility of falls when 3-point contact is not maintained. Adequate platforms must be provided to minimize the risk of injury and load specifications should never be exceeded.