Jib Crane Design Calculator

Jib crane boom and foundation sizing from capacity.

Capacity (lb)

Boom span (ft)

Under-boom height (ft)

Rotation (degrees)

Tab to move between fields

Boom Sx (in^3)

Mast pipe OD (in)8

Foundation dia (in)28

Foundation depth (ft)5

Coverage (sq ft)393

How to Use This Calculator

Enter the required lifting capacity (lb) for the heaviest load the crane will handle.
Set the boom span (ft) — the horizontal reach from the mast centerline to the hook.
Enter the under-boom height (ft) — clearance available beneath the boom arm.
Input the rotation arc (degrees) — how far the boom swings (90° to 360°).
Use Boom Sx (in³) to select a structural beam section, and Foundation dia (in) and Foundation depth (ft) for anchor design.

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