Three-Bend Saddle Calculator
Calculate conduit saddle bend marks, shrink, spacing, and available-length requirements.
Conduit bending inputs
Configure the three-bend saddle
Project information for worksheet
Field layout preview
Three-point saddle
Diagram is illustrative; calculated mark spacing is shown below.
Calculated field marks
Measure from the same conduit end
Three-point saddle guidance
Bridge a narrow obstruction and return to the original run
This calculator follows the published 45° and 60° center-bend saddle tables. All three marks are measured from the same conduit end.
How are three-bend saddle marks calculated?
For a 45-degree center bend, the return bends are 22.5 degrees, each outside mark is 2.5 times the obstruction height from center, and shrink is 3/16 inch per inch of rise. For a 60-degree center bend, return bends are 30 degrees, marks are 2 times the height from center, and shrink is 1/4 inch per inch.
Where is the center mark placed?
Measure to the obstruction center and add the published saddle shrink. Place the two return marks the calculated equal distance on either side of that center mark.
Does the calculator replace bender instructions?
No. Verify the center-of-bend notch, arrow, shoe radius, conduit compatibility, springback, and field clearance using the exact bender instructions.
Review the source method on the methodology page.