diff --git a/Content.Server/Procedural/DungeonJob.PostGen.cs b/Content.Server/Procedural/DungeonJob.PostGen.cs
index 9ee326ffb9..9f1e410a60 100644
--- a/Content.Server/Procedural/DungeonJob.PostGen.cs
+++ b/Content.Server/Procedural/DungeonJob.PostGen.cs
@@ -501,9 +501,11 @@ public sealed partial class DungeonJob
                 if (!dungeon.RoomTiles.Contains(neighbor))
                     continue;
 
-                foreach (var ent in _lookup.GetEntitiesIntersecting(_gridUid, neighbor, flags))
+                // Shrink by 0.01 to avoid polygon overlap from neighboring tiles.
+                foreach (var ent in _lookup.GetEntitiesIntersecting(_gridUid, new Box2(neighbor * grid.TileSize, (neighbor + 1) * grid.TileSize).Enlarged(-0.1f), flags))
                 {
                     if (!physicsQuery.TryGetComponent(ent, out var physics) ||
+                        !physics.Hard ||
                         (CollisionMask & physics.CollisionLayer) == 0x0 &&
                         (CollisionLayer & physics.CollisionMask) == 0x0)
                     {