Static field route #19591

What do I do when parallel 45-degree offsets collide because both travel pieces were cut the same?

Measuring, Field Verification & Layout Marks⚠️ CHECK BEFORE YOU FIXField answer expansion

📖 Verified core answer

Parallel offsets do not always use identical travel pieces. The outside run travels a longer centerline path, so spacing has to be laid out from pipe centerlines, not copied by eye.

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Field verification checklist

Mark both pipe centerlines through the obstruction.
Measure centerline spacing between the parallel runs.
Lay out inside and outside travel lengths separately.
Check clearance between elbows before locking joints.
Verify both runs stay parallel after hangers are tightened.

Ask foreman

The two parallel spiral runs are colliding at the 45 offset because the travel pieces were cut the same. I laid out the centerline spacing and outside travel correction. Do you want me to recut the outside spool?

Text to foreman

Route options

A Correct it only if the fix is within your assignment and approved method.

B Hold and document if it affects pressure class, listed assembly, material spec, support load path, fire barrier, equipment, TAB, or another trade.

C Bring the foreman/detailer the location, what you checked, and what decision you need before sealing, testing, cover, or startup.

Do not do this

Do not copy the inside travel length onto the outside run without checking centerline geometry.

Why this matters

Parallel offsets that pinch together cause clashes, bad clearance, and awkward rework after the line is already hung.

Final verification

Use this as field training guidance. Final direction still comes from the foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, pressure/material schedule, and AHJ/code requirements.

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