TinnerFlow
Layout & Coordination · Install guide

Commercial Duct Run Layout

Control lines, elevations, hanger points, joint stations, offsets, transitions, branches, equipment connections, penetrations, and final route walks.

25 exact job conditionsChoose the one that matches the field condition.
Layout & CoordinationPlan review

Read plan, sections, details, and shop drawings

Square Duct Installation · New square duct run

Open installation →
Layout & CoordinationControl line

Establish centerline

Square Duct Installation · Straight corridor run

Open installation →
Layout & CoordinationBottom elevation

Lay out bottom-of-duct elevation

Square Duct Installation · Rectangular main

Open installation →
Layout & CoordinationTop elevation

Lay out top-of-duct

Square Duct Installation · Tight plenum

Open installation →
Layout & CoordinationHanger points

Mark support locations

Square Duct Installation · Straight run

Open installation →
Layout & CoordinationJoint stations

Plan duct section joints

Square Duct Installation · Long square run

Open installation →
Layout & CoordinationElbow station

Lay out fitting tangent points

Square Duct Installation · 90-degree turn

Open installation →
Layout & CoordinationOffset

Lay out rise and travel

Square Duct Installation · Single-plane obstacle

Open installation →
Layout & CoordinationCompound offset

Lay out horizontal and vertical shift

Square Duct Installation · Two-plane obstacle

Open installation →
Layout & CoordinationTransition

Lay out transition length and orientation

Square Duct Installation · Size change

Open installation →
Layout & CoordinationBranch station

Locate tap centerline

Square Duct Installation · Main duct branch

Open installation →
Layout & CoordinationDevice alignment

Lay out terminal route

Square Duct Installation · Diffuser/register branch

Open installation →
Layout & CoordinationAHU connection

Lay out supply and return connections

Square Duct Installation · Mechanical room

Open installation →
Layout & CoordinationShaft opening

Lay out floor penetration

Square Duct Installation · Riser duct

Open installation →
Layout & CoordinationWall penetration

Lay out wall opening

Square Duct Installation · Horizontal duct

Open installation →
Layout & CoordinationRooftop run

Lay out route and support stands

Square Duct Installation · Exterior square duct

Open installation →
Layout & CoordinationExposed duct

Lay out visual alignment

Square Duct Installation · Open ceiling

Open installation →
Layout & CoordinationMultiple parallel runs

Lay out duct bank

Square Duct Installation · Corridor

Open installation →
Layout & CoordinationSlope

Lay out required pitch

Square Duct Installation · Drainable/exterior duct

Open installation →
Layout & CoordinationField verify

Measure before fabrication

Square Duct Installation · Existing conditions

Open installation →
Layout & CoordinationPiece breakdown

Create installation sequence

Square Duct Installation · Long run

Open installation →
Layout & CoordinationClearance envelope

Lay out service space

Square Duct Installation · Dampers/access doors

Open installation →
Layout & CoordinationInsulation allowance

Lay out true outside dimensions

Square Duct Installation · Externally insulated duct

Open installation →
Layout & CoordinationSeismic brace zone

Plan brace locations

Square Duct Installation · Braced run

Open installation →
Layout & CoordinationFinal route walk

Verify full run

Square Duct Installation · Before install

Open installation →