4-Point Saddle Calculator
A 4-point saddle bend uses four bends to route conduit over a wide obstruction. Unlike a 3-point saddle that peaks over the obstacle, a 4-point saddle creates a flat section that runs parallel above the obstruction. Enter the obstruction height and bend angle to get the distance between bends and total shrink.
How a 4-Point Saddle Works
The conduit is bent at four equally spaced points. The first bend angles the conduit upward, the second levels it off over the obstacle, the third angles it back down, and the fourth returns it to the original path. All four bends use the same angle. The distance between each pair of bends depends on the obstruction height and the multiplier for the chosen angle.
Travel = Obstruction Height × Multiplier
Shrink is doubled because there are two offset transitions
Common 4-Point Saddle Angles
| Bend Angle | Multiplier | Shrink per Inch (total) |
|---|---|---|
| 10° | 5.759 | 1/8" |
| 22.5° | 2.613 | 3/8" |
| 30° | 2.000 | 1/2" |
Frequently Asked Questions
What is a 4-point saddle bend?
A 4-point saddle bend uses four bends to route conduit over a wide obstruction. Two pairs of equal-angle bends create a flat section over the obstacle, making it ideal for obstructions that are too wide for a 3-point saddle.
When should I use a 4-point saddle instead of a 3-point saddle?
Use a 4-point saddle when the obstruction is wide enough that a 3-point saddle would create too sharp a peak. A 4-point saddle provides a flat run over the obstacle, which is better for wider obstructions like junction boxes, large pipes, or ductwork.
What angles are used for a 4-point saddle?
The most common angle for a 4-point saddle is 22.5 degrees. You can also use 10 degrees for very shallow saddles or 30 degrees for tighter transitions. All four bends are made at the same angle, with the first and last bending in one direction and the middle two bending in the opposite direction.