How to fix wall joins in Revit without clicking every corner

The plan is on the sheet and the corner by the stair looks wrong. One wall runs straight through, the other butts into it, and there's a line where the finish should wrap round. There are thirty more like it on this floor.

Changing a join with Revit's own tool

1. On the Modify tab, in the Geometry panel, click Wall Joins.
2. Hover over the corner until a square appears around the join, then click inside it.
3. On the Options Bar (on the ribbon in the newest Revit versions), choose Butt, Miter or Square Off. With Butt, the Previous and Next buttons cycle which wall runs through.
4. Set Display to Clean Join or Don't Clean Join if this corner should differ from the rest of the view.
5. Click Modify to finish.

Why a corner still won't clean up

If that doesn't fix it, check these in order:

• The walls don't touch. Zoom right in. One end often stops a few millimetres short, and Trim/Extend to Corner closes it.
• The join is disallowed. Select the wall, right-click the grip at its end and choose Allow Join.
• The layers don't match. Layers only merge across a join when they share a material. Different materials leave a line between them.
• The view only cleans joins between walls of the same type. In a Coarse view, look at Wall Join Display in the plan's properties. At Medium and Fine it is greyed out.

Where it gets slow

Each of those fixes is a few clicks at one corner. A floor of partitions has hundreds of wall ends, spread across several plans, and you find the bad ones by looking.

It also comes back. Every time someone adds a partition there are new ends to check, usually the night before an issue.

Mitre and join every wall in the view in one pass. The 7-day trial includes Wall Joins and the other 51 NexionTools tools, and needs no card. Start the 7-day trial

Doing the whole view in one pass

NexionTools has its own Wall Joins command, on the NexionTools tab in the ribbon. It's a paid tool, included in the trial.

Know what it is before you run it. It sets every wall end in the view to a mitred join. That suits a set where mitred corners are the standard, or a view you would otherwise fix corner by corner. If your office standard is butt joins, this is the wrong tool for that view.

It works on every wall visible in the active view, so the view is your scope and there's nothing to select first.

1. Open the plan you want cleaned up and click Wall Joins.
2. A dialog tells you how many walls it found and what it's about to do. Click Continue.
3. Both ends of every wall are set to a mitred join.
4. Wall ends that meet, and aren't parallel, have their geometry joined. Meeting means within 50 mm, a tolerance for ends that touch on screen and sit a hair apart in the model. The opposite end of each wall is locked so the join doesn't travel along it.
5. A summary lists new joins created, pairs already joined, parallel walls skipped and non-touching walls skipped.

The whole run is one transaction, so a single Ctrl+Z reverses it. Warnings that Revit raises during the run are dismissed, which saves you a dialog per corner. They won't be in Review Warnings afterwards, so check the corners by eye.

Parallel walls are skipped on purpose. Joining them tends to cause dimension and join warnings, so the tool passes over them and tells you how many.

What it won't do

• It sets every join to Miter. If your standard wants butt joins in places, set those back by hand.
• It won't bridge a gap wider than 50 mm. Close those first.
• It only touches the active view. Run it once per plan, and crop or filter the view to leave an area out.
• It doesn't change wall types, layers or materials.
• On a workshared model, walls owned by someone else are left out of the run.

Run it on your worst floor plan and look at the corners. NexionTools works in Revit 2024 to 2027, the trial covers all 52 tools for 7 days with no card, and 12 tools stay free afterwards. Start the 7-day trial