diff --git a/src/Mod/Arch/ArchStructure.py b/src/Mod/Arch/ArchStructure.py
index 216b86b957..09db2c5f4f 100644
--- a/src/Mod/Arch/ArchStructure.py
+++ b/src/Mod/Arch/ArchStructure.py
@@ -620,7 +620,7 @@ class _Structure(ArchComponent.Component):
                     if obj.Base.Shape.Solids:
                         return None
                     elif obj.Base.Shape.Faces:
-                        if not DraftGeomUtils.isCoplanar(obj.Base.Shape.Faces):
+                        if not DraftGeomUtils.isCoplanar(obj.Base.Shape.Faces,tolerance=0.01):
                             return None
                         else:
                             base,placement = self.rebase(obj.Base.Shape)
diff --git a/src/Mod/Draft/DraftGeomUtils.py b/src/Mod/Draft/DraftGeomUtils.py
index 289339e388..d6c36f8c72 100755
--- a/src/Mod/Draft/DraftGeomUtils.py
+++ b/src/Mod/Draft/DraftGeomUtils.py
@@ -1384,8 +1384,8 @@ def findClosestCircle(point,circles):
             closest = c
     return closest
 
-def isCoplanar(faces):
-    "checks if all faces in the given list are coplanar"
+def isCoplanar(faces,tolerance=0):
+    "isCoplanar(faces,[tolerance]): checks if all faces in the given list are coplanar. Tolerance is the max deviation to be considered coplanar"
     if len(faces) < 2:
         return True
     base =faces[0].normalAt(0,0)
@@ -1393,7 +1393,7 @@ def isCoplanar(faces):
         for v in faces[i].Vertexes:
             chord = v.Point.sub(faces[0].Vertexes[0].Point)
             dist = DraftVecUtils.project(chord,base)
-            if round(dist.Length,precision()) > 0:
+            if round(dist.Length,precision()) > tolerance:
                 return False
     return True