diff --git a/script.js b/script.js
index bbb492a..9e90156 100644
--- a/script.js
+++ b/script.js
@@ -27,6 +27,17 @@ function animate() {
 
 animate();
 
+function setPosition(mesh, x, y, z, w, h, d) {
+    // position sets the *center* position
+    // our coordinates are top/left/bottom
+    let meshX = x - w/2
+    let meshY = y - h/2
+    let meshZ = z - d/2
+    mesh.position.x = meshX
+    mesh.position.y = meshY
+    mesh.position.z = meshZ
+}
+
 function configureScene(data) {
     // Add geometry for the rooms
     for (var room of data.rooms) {
@@ -34,8 +45,7 @@ function configureScene(data) {
         let roomColor = new THREE.Color(room.color)
         let roomMaterial = new THREE.MeshPhysicalMaterial({ color: roomColor })
         let roomMesh = new THREE.Mesh(roomGeo, roomMaterial)
-        roomMesh.position.x = room.x
-        roomMesh.position.y = room.y
+        setPosition(roomMesh, room.x, room.y, room.z || 0, room.w, room.h, room.d)
         roomMesh.userData = room.name
         home.add(roomMesh)
     }