Duct Systems · Expanded master guide
Flat Oval Duct
Ten expanded field guides for flat-oval duct: straight and exposed runs, risers, elbows, transitions, tees, reducers, cable trapezes, and double-wall construction.
Every guide teaches the full task
1Before you start
2Lay it out
3Set and support it
4Make the connection
5Check the install
6Common mistakes
7Stop and ask
These guides focus on preserving the oval profile, matching the major and minor axes, supporting the broad face, connecting the correct joint system, and stopping before a distorted section gets forced into the run.
Straight Runs & AssemblyExpanded guide
Straight flat-oval duct run
Horizontal run
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Flat-oval exposed run
Architectural exposed ceiling
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Flat-oval vertical riser
Vertical shaft
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Flat-oval elbow
Horizontal direction change
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Flat-oval transition to rectangular
Shape transition
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Flat-oval transition to round
Shape transition
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Flat-oval tee
Main with branch
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Flat-oval reducer
Size change
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Flat-oval duct on Gripple trapeze
Cable-supported horizontal run
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Flat-oval acoustic double-wall
Acoustic/thermal run
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