Falls in the Workplace: Mast Climbing Work Platforms

A typical mast climbing work platform configuration

Photo: NIOSH

Mast Climbing Work Platforms (MCWPs), or mast climbers, are a type of construction elevating equipment used to perform work at height. Mast climbers are equipped with a powered drive unit for propelling the work platform up and down a vertical mast structure. As with any type of equipment used to accomplish work at height, safety hazards may be present. Such hazards can result in injury or death.

Training is necessary for anyone using mast climber equipment. NIOSH has developed an online tool to help those who might use mast climbers identify common hazards. This educational resource can also help employers, trainers, and safety and health professionals to prevent work-related falls. Using the inspection tool is not a substitute for OSHA training requirements for MCWPs.

Note: Every mast climbing work platform configuration and set-up is specific to the site. Always consult manufacturer specifications and guidelines for each specific set-up as they can vary from site to site. Mention of any company or product does not constitute endorsement by the National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention.

Mast Climbing Work Platform Daily Inspection Walkthrough Tool
MCWP Daily Inspection Walkthrough

This free daily inspection walkthrough tool allows mast climber users to navigate through what is commonly inspected during a pre-shift daily inspection. When prompted, click on the orange outlined section and the related inspection point will be displayed. Please note the pictures displayed are of a typical mast climbing work platform configuration and do not include all set-ups that may be present on site.

Use the MCWP Daily Inspection Walkthrough today!

Mast Climbing Work Platforms Infographics

Download the infographics for use in social media, presentations, and print materials. #StandDown4Safety

infographic: mast climbers

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Production Tables on Mast Climbing Work Platforms Can Reduce Back Injuries and Falls

English [PDF – 2 MB], Español (Spanish)


Biomechanical assessment while using production tables on mast climbing work platforms

Applied Ergonomics: January 2021 / 90:103276

Mast climbing work platforms
Silver Spring, MD: CPWR-The Center for Construction Research and Training: June 2020 / :1

Evaluating the stability of a freestanding mast climbing work platform
Journal of Safety Research: September 2017 / 62:163-172

Reaching higher: recommendations for the safe use of mast climbing work platforms
Silver Spring, MD: CPWR-The Center for Construction Research and Training: December 2010 / :1-32