diff --git a/data/furniture.json b/data/furniture.json
index b509381..70289cc 100644
--- a/data/furniture.json
+++ b/data/furniture.json
@@ -110,7 +110,7 @@
         {
           "id": "library-kallax-d4",
           "label": "D4",
-          "zone": "cubes",
+          "zone": "campaign",
           "width_in": 13.25,
           "height_in": 13.25,
           "depth_in": 15.4
diff --git a/src/bggpipe/templates/pages/shelves.html b/src/bggpipe/templates/pages/shelves.html
index 869ecd6..4bccac5 100644
--- a/src/bggpipe/templates/pages/shelves.html
+++ b/src/bggpipe/templates/pages/shelves.html
@@ -35,6 +35,7 @@
       <b id="sheettitle"></b>
       <button id="sheetclose" aria-label="close">✕</button>
     </div>
+    <p id="sheetdesc" class="meta"></p>
     <div id="sheetgames"></div>
     <input type="search" id="sheetsearch" placeholder="add a game — search the library…">
     <div id="sheetmatches"></div>
@@ -43,6 +44,9 @@
       <form id="openingform" class="editform">
         <label>Label <input name="label"></label>
         <label>Zone <input name="zone"></label>
+        <label class="wide">Description
+          <textarea name="description" rows="2"
+            placeholder="tall bookcase by the window — kids reach the bottom rows"></textarea></label>
         <label>W <input name="width_in" size="5"></label>
         <label>H <input name="height_in" size="5"></label>
         <label>D <input name="depth_in" size="5"></label>
@@ -93,6 +97,7 @@ function openingCell(o) {
     ? `${o.games}${o.unmeasured ? ` · ${o.unmeasured} unmeasured` : ""}`
     : "—";
   return `<button class="opening" data-id="${esc(o.id)}"
+      ${o.description ? `title="${esc(o.description)}"` : ""}
       style="flex-grow:${Math.round((o.width_in || 13.25) * 4)}">
     <span class="olabel">${esc(o.label)}${warn}</span>
     ${o.zone ? `<span class="ozone">${esc(o.zone)}</span>` : ""}
@@ -205,9 +210,12 @@ function sheetRender() {
           : `<button class="unassign" data-key="${esc(g.key)}">remove</button>`}
       </div>`).join("")
     : `<p class="meta">Nothing here yet.</p>`;
+  document.getElementById("sheetdesc").textContent = o.description || "";
+  document.getElementById("sheetdesc").hidden = !o.description;
   const f = document.getElementById("openingform");
   f.elements.label.value = o.label;
   f.elements.zone.value = o.zone || "";
+  f.elements.description.value = o.description || "";
   f.elements.width_in.value = o.width_in ?? "";
   f.elements.height_in.value = o.height_in ?? "";
   f.elements.depth_in.value = o.depth_in ?? "";
@@ -347,6 +355,7 @@ document.getElementById("openingform").addEventListener("submit", e => {
   }
   post("/api/furniture/edit-opening", {
     id: OPEN, label: f.label.value, zone: f.zone.value,
+    description: f.description.value,
     width_in: parseFloat(f.width_in.value) || null,
     height_in: parseFloat(f.height_in.value) || null,
     depth_in: parseFloat(f.depth_in.value) || null,
diff --git a/src/bggpipe/webreview.py b/src/bggpipe/webreview.py
index 694dc46..d1b588d 100644
--- a/src/bggpipe/webreview.py
+++ b/src/bggpipe/webreview.py
@@ -247,6 +247,7 @@ class OpeningEditBody(BaseModel):
     id: str
     label: str | None = None
     zone: str | None = None
+    description: str | None = None  # free text for humans; zone is the keyword
     # all three or none: a partial size cannot exist (see the endpoint)
     width_in: float | None = None
     height_in: float | None = None
@@ -1290,6 +1291,8 @@ def create_app(
                 real["label"] = body.label.strip() or real["label"]
             if body.zone is not None:
                 real["zone"] = body.zone.strip()
+            if body.description is not None:
+                real["description"] = body.description.strip()
             # dims are all-or-none: three values sets, three blanks makes
             # it virtual, anything else is a 400 — a partial edit must
             # never silently strip an opening of its size limits
diff --git a/tests/test_shelves.py b/tests/test_shelves.py
index 44038d7..604b112 100644
--- a/tests/test_shelves.py
+++ b/tests/test_shelves.py
@@ -800,3 +800,23 @@ def test_reunification_outranks_tightest_fit_and_full_shelves_stop_lying(tmp_pat
     exp = next(g for g in state["unshelved"] if g["name"].endswith("Tower"))
     first = exp["suggestions"][0]
     assert first["id"] == ids["A1"] and first["reunites"] is True
+
+
+def test_opening_descriptions_round_trip(tmp_path):
+    web, cfg = _web(tmp_path, {})
+    web.post("/api/furniture/add-unit", json={"name": "Den"})
+    web.post("/api/furniture/add-openings", json={"unit": "Den", "label": "top"})
+    oid = web.get("/api/shelves").json()["units"][0]["openings"][0]["id"]
+    web.post(
+        "/api/furniture/edit-opening",
+        json={
+            "id": oid,
+            "description": "tall bookcase by the window",
+        },
+    )
+    opening = web.get("/api/shelves").json()["units"][0]["openings"][0]
+    assert opening["description"] == "tall bookcase by the window"
+    import json as _json
+
+    saved = _json.loads(cfg.furniture_path.read_text())["units"][0]["openings"][0]
+    assert saved["description"] == "tall bookcase by the window"