diff --git a/src/frontend/src/features/rooms/utils/isRoomValid.ts b/src/frontend/src/features/rooms/utils/isRoomValid.ts
index a6100d61..592a30d1 100644
--- a/src/frontend/src/features/rooms/utils/isRoomValid.ts
+++ b/src/frontend/src/features/rooms/utils/isRoomValid.ts
@@ -1,4 +1,22 @@
-export const roomIdPattern = '[a-z]{3}-[a-z]{4}-[a-z]{3}'
+/**
+ * Pattern for system-generated room IDs
+ * Format: xxx-xxxx-xxx (e.g., abc-defg-hij)
+ * This pattern is used when rooms are automatically created by the system,
+ * ensuring consistent and predictable room IDs for randomly generated rooms.
+ */
+export const generatedRoomPattern = '[a-z]{3}-[a-z]{4}-[a-z]{3}'
+
+/**
+ * Pattern for user-defined custom room IDs
+ * Format: Minimum 5 lowercase alphanumeric characters
+ * This pattern allows users to create memorable, personalized room names
+ * while maintaining basic validation rules (e.g., myroom123, teamspace, project2024)
+ */
+export const personalizedRoomPattern = '[a-z0-9]{5,}'
+
+// Combined pattern that accepts both system-generated and personalized room IDs
+// This allows flexibility in room creation while maintaining consistent validation
+export const roomIdPattern = `(?:${generatedRoomPattern}|${personalizedRoomPattern})`
 
 export const isRoomValid = (roomIdOrUrl: string) =>
   new RegExp(`^${roomIdPattern}$`).test(roomIdOrUrl) ||