Mast Climber Calculator

Mast climber capacity from load and building height.

Building height (ft)

Facade length (ft)

Platform length per unit (ft)

Platform load (lbs)

Mast Type

Tab to move between fields

Mast climber units needed

Overloaded (1=yes, 0=no)

Mast sections per unit16

Total mast sections48

Load utilization (%)75%

Tie-backs needed12

One Trip (min)5.93

How to Use This Calculator

Enter building height (ft) and facade length (ft) for the work zone.
Set platform length per unit (ft) and platform load (lbs).
Select mast type (single or twin mast) based on span and load requirements.
Review units needed, mast sections per unit, total mast sections, and load utilization (%).
Keep load utilization below 80% -- verify total platform load against manufacturer capacity ratings.

What each input means

Building height (ft): Height to the highest working level on the building.
Facade length (ft): Length of the building face to be covered by mast climbers.
Platform length per unit (ft): Length of each mast climber platform (single mast: up to 23 ft, twin: up to 82 ft).
Platform load (lbs): Total weight of workers, tools, and materials on the platform.
Mast Type: Select mast configuration

Mast climber units needed: Number of mast climber units to cover the facade.
Mast sections per unit: 5-ft mast sections needed per unit for the building height.
Total mast sections: All mast sections across all units (twin mast counts both masts).
Load utilization (%): Percentage of the unit's rated capacity being used.
Overloaded (1=yes, 0=no): 1 if the load exceeds the mast type's rated capacity.
Tie-backs needed: Building tie-back anchors for the mast (every ~22 ft of height).

Identify Input Parameters
4 parameters
Building height (ft) = 80, Facade length (ft) = 60, Platform length per unit (ft) = 23, Platform load (lbs) = 3000 = 5 input(s) provided
Calculate Mast climber units needed
Mast climber units needed = ceil(facadeLength / platformLength)
3 = 3
Calculate Overloaded
0 = 0
Calculate Mast sections per unit
Mast sections per unit = ceil(buildingHeight / mastSectionLength)
16 = 16
Calculate Total mast sections
48 = 48