diff --git a/docs/api/printerprofiles.rst b/docs/api/printerprofiles.rst
index b22b8a36..668fed5b 100644
--- a/docs/api/printerprofiles.rst
+++ b/docs/api/printerprofiles.rst
@@ -143,11 +143,12 @@ Profile
    * - ``volume.width``
      - 0..1
      - ``float``
-     - The width of the print volume
+     - The width of the print volume. For circular beds, the diameter of the bed.
    * - ``volume.depth``
      - 0..1
      - ``float``
-     - The depth of the print volume
+     - The depth of the print volume. For circular beds, this is the diameter of the bed and will be forced to be the same
+       as ``volume.width`` upon saving.
    * - ``volume.height``
      - 0..1
      - ``float``
diff --git a/src/octoprint/printer/profile.py b/src/octoprint/printer/profile.py
index 1e7a618a..78d73ac4 100644
--- a/src/octoprint/printer/profile.py
+++ b/src/octoprint/printer/profile.py
@@ -453,6 +453,10 @@ class PrinterProfileManager(object):
 		if profile["volume"]["formFactor"] == BedTypes.CIRCULAR and not profile["volume"]["origin"] == BedOrigin.CENTER:
 			profile["volume"]["origin"] = BedOrigin.CENTER
 
+		# force width and depth of volume to be identical for circular beds, with width being the reference
+		if profile["volume"]["formFactor"] == BedTypes.CIRCULAR:
+			profile["volume"]["depth"] = profile["volume"]["width"]
+
 		# validate offsets
 		offsets = []
 		for offset in profile["extruder"]["offsets"]:
diff --git a/src/octoprint/static/js/app/viewmodels/printerprofiles.js b/src/octoprint/static/js/app/viewmodels/printerprofiles.js
index c9c100d3..074d6db3 100644
--- a/src/octoprint/static/js/app/viewmodels/printerprofiles.js
+++ b/src/octoprint/static/js/app/viewmodels/printerprofiles.js
@@ -281,6 +281,10 @@ $(function() {
                 }
             }
 
+            if (profile.volume.formFactor == "circular") {
+                profile.volume.depth = profile.volume.width;
+            }
+
             return profile;
         };