Reviewed for Flex Version 3.0
Estimated Read Time: 5 minutes
In This Article You’ll Learn
How walls connect
The difference between wall endpoints and shared corners
How snapping works
Why connected walls are important
Common causes of wall-related issues
Overview
Walls are the foundation of every floor plan in Flex.
Many other features—including rooms, flooring, dimensions, elevations, and exports—are generated from your wall layout.
Keeping walls properly connected helps these features update automatically as you edit.
Wall Endpoints vs. Shared Corners
When a wall is selected, you’ll see two different types of wall vertices.
Blue Vertices (Wall Endpoints)
Blue vertices represent the end of an individual wall.
Use them to:
Extend a wall
Shorten a wall
Rotate a wall
Connect a wall to another wall
Green Vertices (Shared Corners)
Green vertices represent a corner shared by two or more connected walls.
Moving a green vertex moves every wall connected to that corner.
Use green vertices when you want to:
Resize an entire room
Adjust a room corner
Correct scan alignment
Move several connected walls together
Connecting Walls
When extending a wall toward another wall, continue dragging until the endpoint snaps into place before releasing.
A properly connected wall helps Flex automatically:
Detect rooms
Generate flooring
Display interior dimensions
Generate elevations
Produce accurate exports
If two walls only appear to touch—but aren’t actually connected—you may experience unexpected behavior.
Snapping
Snapping helps walls connect accurately without requiring perfect placement.
Depending on what you’re editing, Flex may snap to:
Wall endpoints
Shared corners
Wall edges
Wall centerlines
Angle increments
Web
Hold Shift while dragging to temporarily disable snapping for finer control.
iPhone & iPad
Snap types can be enabled or disabled from the Settings panel. You can also drag beyond the snap tolerance to intentionally ignore a snap point.
Why Wall Connections Matter
Walls in Flex are connected geometry.
Editing one wall may automatically update:
Connected corners
Doors, windows, and openings
Room boundaries
Flooring
Measurements
This helps keep the floor plan synchronized as you work.
Troubleshooting Wall Connections
If rooms, flooring, or dimensions aren’t updating correctly:
Zoom in to the affected corner.
Verify the walls are actually connected.
Look for:
Small gaps
Overlapping walls
Misaligned endpoints
Use the wall editing tools to reconnect the geometry.
Many editing issues are caused by wall connections that appear correct when zoomed out but aren’t actually joined.
Best Practices
Complete major wall edits before creating flooring.
Use green vertices when moving an entire room corner.
Use blue vertices when extending or shortening a single wall.
Zoom in before making precise wall edits.
Review nearby rooms after moving major wall geometry.
Common Mistakes
Using the Wrong Vertex
Use blue vertices for individual walls.
Use green vertices for shared room corners.
Walls Look Connected—but Aren’t
Walls that nearly touch may prevent rooms, flooring, and dimensions from updating correctly.
Always zoom in and verify corners are clean.
💡 Pro tip: if you hover your mouse (web) over an intersection, or select one of its walls, it should clearly be mitered in a way that shows the connection is either good or bad.
Disabling Snapping Unnecessarily
Snapping helps maintain clean wall geometry.
Only disable snapping when making intentional free-form adjustments.
Frequently Asked Questions
Why didn’t my room update?
Most commonly, two walls aren’t fully connected.
Inspect the nearby wall junctions and reconnect them if necessary.
Why did another wall move?
You moved a green shared corner, which adjusts every wall connected to that vertex.
Why did my flooring move?
Flooring is linked to wall geometry whenever possible, allowing it to follow wall edits automatically.
Why are my dimensions missing?
Interior dimensions are generated automatically from connected wall geometry.
If the Interior Dimensions layer is enabled but dimensions are still missing, inspect nearby wall junctions for small gaps or disconnected walls.
Related Articles
Editing Walls
Drawing New Walls
Working with Rooms
Measurements & Dimensions
Layers & Visibility