A four-point saddle is two offsets in a row: the first raises the run to clear a wide obstruction such as a beam, duct or another conduit rack, and the second brings it back down once past. Each offset is laid out with the usual multiplier for its angle, the obstruction's width sets the gap between them, and shrink is added for both. With four bends it eats a big share of the 360 degrees allowed between pull points.
That duct is two feet wide, so it's a four-point saddle, two 30-degree offsets, and keep them in the same plane.
Also heard as
- 4-point saddle
- four-bend saddle
Related terms
Saddle
Set of bends that carries conduit over a pipe or obstruction and back down to its original line.
Offset
Two equal bends in opposite directions that shift a conduit run sideways to clear an obstruction or enter a box.
Dog leg
Crooked bend where two bends in one conduit end up out of plane, so the run will not lie flat.