Lifting calculators
Rigging, ground and restraint, calculated live
Three calculators that cover the load path from the hook to the ground and onto the trailer. Results update as you type and print on A4.
Lifting calculator
Sling Tension Calculator
Leg tension, sling length and rigging gear selection for 17 arrangements: single-leg, two-leg, four-leg, spreader-beam and tailing lifts, with an optional padeye-to-shackle fit check.
- 17 hitch and bridle arrangements
- Unequal legs and offset centre of gravity
- Sling, shackle and hook selection
- Padeye-to-shackle fit check against 7 shackle ranges
- Two arrangements free to use
Lifting calculator
Wooden Mat (Cribbage) Calculator
Outrigger load, ground bearing pressure and timber mat size for mobile cranes, from a database of crane models and presumptive soil bearing values.
- Crane database with outrigger spreads
- Presumptive bearing values by soil type
- Mat size and spread of load
- Field guide for identifying soils
Lifting calculator
Lashing & Load Securing Calculator
Number and type of lashings for road transport to BS EN 12195-1 and tie-down count rules: friction, forward, rearward and sideways restraint, equipment selection and a pre-trip checklist.
- Trailer and lashing equipment catalogue
- Friction, tie-down and direct lashing checks
- Lashing diagrams by cargo type
- Compliance report and pre-trip checklist
Calculator dashboard
Your calculations, saved and searchable
Every saved calculation keeps its inputs, so you can reopen it, change one value and print a new revision.
Calculation history
Every saved calculation with date, tool and status.
Projects
Name and group calculations by job.
PDF export
Print to A4 or save as PDF from any calculation.
Share for review
Send a calculation to a colleague for approval.
On any device
Phone, tablet or desktop, with the same account.
Private
Only you and the approvers you choose can open your work.
Every planner and calculator for USD 19.99 a year
One subscription covers lift planning, all calculators, saved projects, A4 reports and the approval workflow. Two sling calculators stay free.