Four-Bend Saddle Calculator
Calculate conduit saddle bend marks, shrink, spacing, and available-length requirements.
Conduit bending inputs
Configure the four-bend saddle
Project information for worksheet
Field layout preview
Four-point saddle
Diagram is illustrative; calculated mark spacing is shown below.
Calculated field marks
Measure from the same conduit end
Four-point saddle guidance
Plan two offsets around a wider obstruction
The level middle section uses the entered obstruction width. Add practical side clearance where fittings, insulation, or field tolerances require it.
When should I use a four-bend saddle?
A four-bend saddle is useful for a wider obstruction because it creates two equal offsets with a level section between them.
How is four-bend saddle spacing calculated?
Each offset travel is the obstruction height divided by the sine of the selected angle. The middle marks are separated by the entered obstruction width.
Are the marks exact for every bender?
They are centerline planning marks. Verify bender radius, take-up or gain method, conduit springback, and clearance using the actual tool and job conditions.
Review assumptions on the methodology page.