Pipe Notch Calculator

Calculate cope/fish-mouth cut dimensions for pipe-to-pipe joints at any angle.

90 = perpendicular (T-joint), lower = angled saddle

Cope Depth Range
--
min to max cut depth
Branch Circumference
--
Template Width
--
Max Cut Height
--
Min Cut Height
--
Cut Template (wrap around branch pipe)
Point Angle Distance Along Cut Height

How Pipe Coping Works

A pipe cope (fish-mouth) is a curved cut on the end of a branch pipe that allows it to fit tightly against a larger (or same-size) main pipe. The cut profile follows the contour of the main pipe at the intersection angle.

Using the Template

  • Print or mark the template points around the branch pipe circumference
  • Mark the cut height at each point around the pipe
  • Connect the marks with a smooth curve
  • Cut along the line with a bandsaw, grinder, or plasma cutter
  • Bevel the edge for weld preparation (typically 30-37.5 degrees)

Verwandte Rechner

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