When I saw Autodesk changed the behavior of the Revit 2026 layers within a wall’s structure, I was full of hope that their changes would solve the issues with dimensioning walls with plaster layers to their brick faces. Unfortunately, this is still an actionable improvement for Autodesk, but at least the joining of walls is now made much easier.

Previously, unless you knew how to remove the function from a wall layer, you would have been unable to get the walls to join properly. This was insider knowledge and is thankfully now something of the past.

See below the definition for the typical double cavity wall. Only layers outside the core can wrap. Only layers inside the core can be structural (previously at least one layer needed to be in the core – now no more). Importantly, the priority has now been removed from the function. The dimension tool can still only differentiate between wall face, core face and center of wall. We would have loved to be able to dimension to the face of the brick layer, and perhaps this is an idea for the future. Let the dimension latch onto the first layer of a certain priority?

Alternatively, if the layers inside the core were able to wrap or if the wrapping behavior were to be changed.

Below is the definition of the single cavity. Note that the core may be empty now.

Notice also the priorities of the single wall with respect to the double cavity wall. The result? Walls that join properly.

If you need help adopting the AEC Collection or the Autodesk Construction Cloud in your practice or if you are looking to invest in hardware, please contact Micrographics so that we may be of assistance.

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