Ductworks Level 1 Duct Layout: Step-by-Step Setup Guide - Layouts

Ductworks Level 1 Duct Layout: Step-by-Step Setup Guide

Learn how to plan, place, and connect your first duct layout in Ductworks Level 1, with routing tips, common errors, and airflow testing steps.

2026-10-08
ductworks Wiki Team
Quick Guide
  • Ductworks Level 1 duct layout starts with one short, straight, fully connected route.
  • Plan first, build second: define a source, a path, and a destination before placing anything.
  • Test after every change: run the airflow check before adding corners or branches.
  • Fix direction errors early: a reversed or misaligned section is the most common failure.
  • Expand gradually: add branches one at a time so problems stay easy to trace.

Understanding Your First Duct Layout

Ductworks is a sandbox HVAC-building experience, and your first layout is the foundation for everything that follows. The goal at this early stage is not scale — it is a clean, continuous, testable route. Air can only travel through a connected duct system, so every section you place must meet its neighbors correctly and face the right direction.

Treat your first layout as three parts: a starting point where air enters, one or more straight duct sections forming the main path, and an ending point where air arrives. Keep the whole build short enough that you can visually inspect every connection from a single camera position.

Core concepts to know before building:

  • Airduct: a constructed passage that guides air from one area to another
  • Airflow: the movement of air through a connected system
  • Piping: the arrangement and connection of duct sections
  • HVAC: the larger heating, ventilation, and air-conditioning system your build represents
Start Small

Resist the urge to build a large network immediately. A compact straight route is easier to inspect, easier to fix, and teaches you how connections behave faster than any large build.

Level 1 Layout: Step-by-Step Build

Follow this sequence to create a working first layout. Each step builds on the previous one, and testing is part of the construction process — not something you do only at the end.

1

Plan the Route

Decide where air should begin, where it should travel, and where it should end. Sketch the path mentally across the build area and leave extra space for future turns or branches. Reserve the straightest available path for your main route.

2

Place the Main Duct Sections

Use the bottom control bar to place a continuous line of duct sections from source to destination. Keep adjacent sections aligned so the system remains readable and easy to adjust later.

3

Connect and Align Each Section

Check that neighboring sections meet correctly and that openings face the intended direction of travel. A visibly connected-looking route can still fail if one section is reversed or a transition is offset.

4

Test the Airflow

Use the testing controls to verify that air travels the full route. Follow the path from the source toward the destination and watch for the point where the flow stops.

5

Add One Change at a Time

Once the basic route works, add a corner, extension, or branch as a single change, then retest. This keeps the cause of any new problem obvious.

Build Habit

Change one part of the layout at a time and retest after each change. This single habit prevents most troubleshooting headaches as your system grows.

Layout Styles Compared

Different early layouts teach different lessons. Compare these approaches and pick the one that matches what you want to learn first.

Layout StyleStructureDifficultyBest For
Straight RouteSource, straight sections, destination★☆☆☆☆Learning connections and basic airflow
Single-Turn RouteStraight path plus one corner★★☆☆☆Practicing transitions and alignment
Compact LoopRoute that returns near its start★★★☆☆Understanding direction and flow behavior
Branched RouteMain path plus side branches★★★★☆Exploring distribution across destinations

Straight Route

  • Easiest to inspect
  • Every connection visible at once
  • Ideal first test build

Single-Turn Route

  • Teaches corner alignment
  • Test the turn before extending
  • Good second build

Branched Route

  • Introduces distribution
  • Add branches only after main path works
  • Best for later expansion

Common Level 1 Errors and Fixes

Most first-layout failures come from a small set of repeated mistakes. Learn to recognize them and you can diagnose almost any stopped airflow quickly.

SymptomLikely CauseFix
Air stops mid-routeGap between two duct sectionsReconnect or move the sections until they meet
Flow goes wrong wayA section faces the wrong directionRotate or adjust that section, then retest
Air stops at a cornerMisaligned transitionCheck both sides of the corner individually
Route worked, then brokeUntested branch addedUndo the newest change first, then retest
Hard to find the problemLayout too denseSpace sections out for better visibility
Troubleshooting Rule

When a test fails, always inspect the most recent structural change first. Rebuilding the entire system is rarely necessary and usually hides the actual cause.

Recommended airflow inspection routine:

  • Inspect the source and confirm air is entering the system
  • Follow the main route section by section
  • Check every corner and transition individually
  • Review any branch points last
  • Undo or adjust the latest change before anything else

Level 1 Completion Checklist

Use this checklist to confirm your first duct layout is solid before you expand into a larger HVAC system.

Level 1 Layout Milestones:

  • Plan a source, path, and destination before building
  • Place a fully connected main duct route
  • Verify every section faces the correct direction
  • Run an airflow test on the complete route
  • Add and test one corner or branch successfully

FAQ

Q: What should my first Ductworks Level 1 duct layout look like?

Start with a short, straight route containing a source, a few duct sections, and a destination. Keep it compact so every connection is easy to see, and test it before adding any turns or branches.

Q: Why does my airflow stop even though the ducts look connected?

The most common causes are a small gap between sections, a section facing the wrong direction, or a misaligned corner. Inspect each connection individually and check that openings face the intended direction of travel.

Q: When should I add branches to my layout?

Only after the main path has passed an airflow test. Add one branch at a time and retest after each addition so you can identify exactly which change caused any new behavior.

Q: Is building in multiplayer different for a first layout?

The construction principles are the same, but in multiplayer you should agree on the route plan first and assign roles such as planner, builder, and tester so players do not modify the same section at once.