diff --git a/src/config/constants.js b/src/config/constants.js
index 6ccf7a5..93c794b 100644
--- a/src/config/constants.js
+++ b/src/config/constants.js
@@ -12,6 +12,36 @@ const UserActions = [
   "Receive",
 ];
 
+const LevelPositions = [
+  "B",
+  "D",
+  "DB",
+  "DF",
+  "F",
+  "L",
+  "LB",
+  "LD",
+  "LDB",
+  "LDF",
+  "LF",
+  "LU",
+  "LUB",
+  "LUF",
+  "R",
+  "RB",
+  "RD",
+  "RDB",
+  "RDF",
+  "RF",
+  "RU",
+  "RUB",
+  "RUF",
+  "U",
+  "UB",
+  "UF",
+  "W",
+];
+
 const InventoryScopes = ["Inventory", "Material", "Item"];
 
 const WarehouseScopes = [
@@ -53,6 +83,7 @@ module.exports = {
   InventoryTypes,
   CustomAttributeTypes,
   SubLevelTypes,
+  LevelPositions,
   SUPER_ADMIN_ROLE: "super-admin",
   COMPANY_ADMIN_ROLE: "company-admin",
   WAREHOUSE_ADMIN_ROLE: "warehouse-admin",
diff --git a/src/models/Level.js b/src/models/Level.js
index debc961..857b561 100644
--- a/src/models/Level.js
+++ b/src/models/Level.js
@@ -1,5 +1,5 @@
 const mongoose = require("mongoose");
-const { SubLevelTypes } = require("../config/constants");
+const { SubLevelTypes, LevelPositions } = require("../config/constants");
 
 const schema = new mongoose.Schema(
   {
@@ -29,15 +29,10 @@ const schema = new mongoose.Schema(
           type: String,
           enum: SubLevelTypes
         },
-        depth: {
+        postition: {
           required: true,
-          type: Number,
-          min: 1, // Level is at 0
-          max: 5,
-        },
-        bay_id: {
-          type: mongoose.Schema.Types.ObjectId,
-          ref: "Bay",
+          type: String,
+          enum: LevelPositions,
         },
         sub_level_id: {
           required: true,
diff --git a/src/models/Sublevel.js b/src/models/Sublevel.js
index 7d0dbe0..1334ae6 100644
--- a/src/models/Sublevel.js
+++ b/src/models/Sublevel.js
@@ -1,5 +1,5 @@
 const mongoose = require("mongoose");
-const { SubLevelTypes } = require("../config/constants");
+const { SubLevelTypes, LevelPositions } = require("../config/constants");
 
 const schema = new mongoose.Schema(
   {
@@ -11,7 +11,7 @@ const schema = new mongoose.Schema(
     type: {
       type: String,
       required: true,
-      enum: SubLevelTypes
+      enum: SubLevelTypes,
     },
     specs: {
       // TBD
@@ -39,11 +39,10 @@ const schema = new mongoose.Schema(
           type: String,
           enum: SubLevelTypes,
         },
-        depth: {
+        postition: {
           required: true,
-          type: Number,
-          min: 1, // Level is at 0
-          max: 5,
+          type: String,
+          enum: LevelPositions,
         },
         sub_level_id: {
           required: true,