Explicit inputs
No hidden assumptions about crane weight, leg reactions or ground capacity.
Crane planning answers, right when you need them.
01Ground support
Ground Bearing Pressure
Check required ground pressure and the minimum bearing area for one explicitly supplied outrigger reaction.
Open free calculator02Reaction screening
Outrigger Reaction
Calculate load moment and geometry without inventing unsafe per-leg reactions from incomplete crane data.
Open free calculator03Mat sizing
Crane Mat Size
Turn a verified maximum outrigger reaction and ground capacity into a minimum contact-area suggestion.
Open free calculator04Rigging screening
Sling Angle Load
See how lower sling angles increase tension and compare a conservative effective-leg result with the entered per-leg WLL.
Open free calculator05Lift geometry
Lift Radius & Tip Height
Convert simple boom geometry into a two-dimensional radius and tip-height screening result.
Open free calculatorBuilt for transparent checks
Useful results, visible limits.
Traceable method
Formula and calculation scope sit beside every result.
Fail closed
Where manufacturer or competent-source data is required, the tool says so.
Need the complete workflow?
Open planning workspace Move from a quick check to a recorded lift plan.
Use the OutriggerPlan workspace for crane data, lift geometry, ground checks, clearances and exportable planning records.