diff --git a/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap b/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
index cc9bc18f322e..7847f74e50fb 100644
--- a/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
+++ b/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
@@ -171,6 +171,9 @@ Object {
     Object {
       "path": "full-page-screenshot",
     },
+    Object {
+      "path": "script-treemap-data",
+    },
     Object {
       "path": "manual/pwa-cross-browser",
     },
diff --git a/lighthouse-core/audits/script-treemap-data.js b/lighthouse-core/audits/script-treemap-data.js
index 8cfcc5442eff..63657c568337 100644
--- a/lighthouse-core/audits/script-treemap-data.js
+++ b/lighthouse-core/audits/script-treemap-data.js
@@ -257,13 +257,12 @@ class ScriptTreemapDataAudit extends Audit {
    * @return {Promise<LH.Audit.Product>}
    */
   static async audit(artifacts, context) {
-    const treemapData = await ScriptTreemapDataAudit.makeNodes(artifacts, context);
+    const nodes = await ScriptTreemapDataAudit.makeNodes(artifacts, context);
 
-    // TODO: when out of experimental should make a new detail type.
-    /** @type {LH.Audit.Details.DebugData} */
+    /** @type {LH.Audit.Details.TreemapData} */
     const details = {
-      type: 'debugdata',
-      treemapData,
+      type: 'treemap-data',
+      nodes,
     };
 
     return {
diff --git a/lighthouse-core/config/default-config.js b/lighthouse-core/config/default-config.js
index d859948b7157..271b67855487 100644
--- a/lighthouse-core/config/default-config.js
+++ b/lighthouse-core/config/default-config.js
@@ -238,6 +238,7 @@ const defaultConfig = {
     'valid-source-maps',
     'preload-lcp-image',
     'full-page-screenshot',
+    'script-treemap-data',
     'manual/pwa-cross-browser',
     'manual/pwa-page-transitions',
     'manual/pwa-each-page-has-url',
diff --git a/lighthouse-core/config/experimental-config.js b/lighthouse-core/config/experimental-config.js
index efd98ab49bd1..5d716d3e245f 100644
--- a/lighthouse-core/config/experimental-config.js
+++ b/lighthouse-core/config/experimental-config.js
@@ -16,7 +16,6 @@ const config = {
   audits: [
     'autocomplete',
     'large-javascript-libraries',
-    'script-treemap-data',
     'csp-xss',
   ],
   categories: {
diff --git a/lighthouse-core/report/html/renderer/details-renderer.js b/lighthouse-core/report/html/renderer/details-renderer.js
index d866f17bb1b7..a65fa8702702 100644
--- a/lighthouse-core/report/html/renderer/details-renderer.js
+++ b/lighthouse-core/report/html/renderer/details-renderer.js
@@ -70,6 +70,7 @@ class DetailsRenderer {
       case 'screenshot':
       case 'debugdata':
       case 'full-page-screenshot':
+      case 'treemap-data':
         return null;
 
       default: {
diff --git a/lighthouse-core/report/html/renderer/report-ui-features.js b/lighthouse-core/report/html/renderer/report-ui-features.js
index 5658f81abc17..3f59431148ea 100644
--- a/lighthouse-core/report/html/renderer/report-ui-features.js
+++ b/lighthouse-core/report/html/renderer/report-ui-features.js
@@ -183,7 +183,10 @@ class ReportUIFeatures {
    * @param {{text: string, icon?: string, onClick: () => void}} opts
    */
   addButton(opts) {
-    const metricsEl = this._dom.find('.lh-audit-group--metrics', this._document);
+    const metricsEl = this._document.querySelector('.lh-audit-group--metrics');
+    // Not supported without metrics group.
+    if (!metricsEl) return;
+
     const classes = [
       'lh-button',
     ];
@@ -546,9 +549,8 @@ class ReportUIFeatures {
    * @param {LH.Result} json
    */
   static openTreemap(json) {
-    const treemapDebugData = /** @type {LH.Audit.Details.DebugData} */ (
-      json.audits['script-treemap-data'].details);
-    if (!treemapDebugData) {
+    const treemapData = json.audits['script-treemap-data'].details;
+    if (!treemapData) {
       throw new Error('no script treemap data found');
     }
 
diff --git a/lighthouse-core/report/html/report-template.html b/lighthouse-core/report/html/report-template.html
index 74042a11934d..96c481103efe 100644
--- a/lighthouse-core/report/html/report-template.html
+++ b/lighthouse-core/report/html/report-template.html
@@ -48,11 +48,6 @@
       // is in the document.
       const features = new ReportUIFeatures(dom);
       features.initFeatures(window.__LIGHTHOUSE_JSON__);
-
-      // No UI for treemap yet. For now, must run this command in console.
-      globalThis._tmpFeatures = features;
-      const command = 'ReportUIFeatures.openTreemap(_tmpFeatures.json);';
-      console.log(`For treemap viewer, run: ${command}`);
     }
     window.addEventListener('DOMContentLoaded', __initLighthouseReport__);
 
diff --git a/lighthouse-core/test/audits/script-treemap-data-test.js b/lighthouse-core/test/audits/script-treemap-data-test.js
index 1e5ee83440a1..70d05c618b01 100644
--- a/lighthouse-core/test/audits/script-treemap-data-test.js
+++ b/lighthouse-core/test/audits/script-treemap-data-test.js
@@ -28,7 +28,7 @@ function generateRecord(url, resourceSize, resourceType) {
 
 describe('ScriptTreemapData audit', () => {
   describe('squoosh fixture', () => {
-    /** @type {LH.Treemap.Node[]} */
+    /** @type {LH.Audit.Details.TreemapData} */
     let treemapData;
     beforeAll(async () => {
       const context = {computedCache: new Map()};
@@ -52,13 +52,15 @@ describe('ScriptTreemapData audit', () => {
         ScriptElements: [{src: scriptUrl, content}, noSourceMapScript],
       };
       const results = await ScriptTreemapData.audit(artifacts, context);
+      if (!results.details || results.details.type !== 'treemap-data') {
+        throw new Error('should not happen.');
+      }
 
-      // @ts-expect-error: Debug data.
-      treemapData = results.details.treemapData;
+      treemapData = results.details;
     });
 
     it('has nodes', () => {
-      expect(treemapData.find(s => s.name === 'https://sqoosh.app/no-map-or-usage.js'))
+      expect(treemapData.nodes.find(s => s.name === 'https://sqoosh.app/no-map-or-usage.js'))
         .toMatchInlineSnapshot(`
         Object {
           "name": "https://sqoosh.app/no-map-or-usage.js",
@@ -66,7 +68,7 @@ describe('ScriptTreemapData audit', () => {
         }
       `);
 
-      const bundleNode = treemapData.find(s => s.name === 'https://squoosh.app/main-app.js');
+      const bundleNode = treemapData.nodes.find(s => s.name === 'https://squoosh.app/main-app.js');
       // @ts-expect-error
       const unmapped = bundleNode.children[0].children.find(m => m.name === '(unmapped)');
       expect(unmapped).toMatchInlineSnapshot(`
@@ -77,13 +79,13 @@ describe('ScriptTreemapData audit', () => {
         }
       `);
 
-      expect(JSON.stringify(treemapData).length).toMatchInlineSnapshot(`6740`);
-      expect(treemapData).toMatchSnapshot();
+      expect(JSON.stringify(treemapData.nodes).length).toMatchInlineSnapshot(`6740`);
+      expect(treemapData.nodes).toMatchSnapshot();
     });
   });
 
   describe('coursehero fixture', () => {
-    /** @type {LH.Treemap.Node[]} */
+    /** @type {LH.Audit.Details.TreemapData} */
     let treemapData;
     beforeAll(async () => {
       const context = {computedCache: new Map()};
@@ -106,20 +108,22 @@ describe('ScriptTreemapData audit', () => {
         ScriptElements: [{src: scriptUrl1, content}, {src: scriptUrl2, content}],
       };
       const results = await ScriptTreemapData.audit(artifacts, context);
+      if (!results.details || results.details.type !== 'treemap-data') {
+        throw new Error('should not happen.');
+      }
 
-      // @ts-expect-error: Debug data.
-      treemapData = results.details.treemapData;
+      treemapData = results.details;
     });
 
     it('has nodes', () => {
-      expect(JSON.stringify(treemapData).length).toMatchInlineSnapshot(`86817`);
-      expect(treemapData).toMatchSnapshot();
+      expect(JSON.stringify(treemapData.nodes).length).toMatchInlineSnapshot(`86817`);
+      expect(treemapData.nodes).toMatchSnapshot();
     });
 
     it('finds duplicates', () => {
-      expect(JSON.stringify(treemapData).length).toMatchInlineSnapshot(`86817`);
+      expect(JSON.stringify(treemapData.nodes).length).toMatchInlineSnapshot(`86817`);
       // @ts-ignore all these children exist.
-      const leafNode = treemapData[0].
+      const leafNode = treemapData.nodes[0].
         children[0].
         children[0].
         children[0].
diff --git a/lighthouse-core/test/report/html/renderer/report-ui-features-test.js b/lighthouse-core/test/report/html/renderer/report-ui-features-test.js
index d08a53861820..276690bc229b 100644
--- a/lighthouse-core/test/report/html/renderer/report-ui-features-test.js
+++ b/lighthouse-core/test/report/html/renderer/report-ui-features-test.js
@@ -556,11 +556,13 @@ describe('ReportUIFeatures', () => {
 
   describe('treemap button', () => {
     it('should only show button if treemap data is available', () => {
-      expect(sampleResults.audits['script-treemap-data']).toBeUndefined();
-      expect(render(sampleResults).querySelector('.lh-button.report-icon--treemap')).toBeNull();
+      const lhr = JSON.parse(JSON.stringify(sampleResults));
+
+      expect(lhr.audits['script-treemap-data']).not.toBeUndefined();
+      expect(render(lhr).querySelector('.lh-button.report-icon--treemap')).toBeTruthy();
 
-      sampleResults.audits['script-treemap-data'] = {details: {}};
-      expect(render(sampleResults).querySelector('.lh-button.report-icon--treemap')).toBeTruthy();
+      delete lhr.audits['script-treemap-data'];
+      expect(render(lhr).querySelector('.lh-button.report-icon--treemap')).toBeNull();
     });
   });
 
diff --git a/lighthouse-core/test/results/sample_v2.json b/lighthouse-core/test/results/sample_v2.json
index aab9cd781a92..b2003db5e94a 100644
--- a/lighthouse-core/test/results/sample_v2.json
+++ b/lighthouse-core/test/results/sample_v2.json
@@ -2505,6 +2505,42 @@
         }
       }
     },
+    "script-treemap-data": {
+      "id": "script-treemap-data",
+      "title": "Script Treemap Data",
+      "description": "Used for treemap app",
+      "score": null,
+      "scoreDisplayMode": "informative",
+      "details": {
+        "type": "treemap-data",
+        "nodes": [
+          {
+            "name": "http://localhost:10200/dobetterweb/dbw_tester.html",
+            "resourceBytes": 5806
+          },
+          {
+            "name": "http://localhost:10200/dobetterweb/dbw_tester.js",
+            "resourceBytes": 48
+          },
+          {
+            "name": "http://localhost:10200/dobetterweb/empty_module.js?delay=500",
+            "resourceBytes": 60
+          },
+          {
+            "name": "http://localhost:10200/dobetterweb/fcp-delayer.js?delay=5000",
+            "resourceBytes": 60
+          },
+          {
+            "name": "http://localhost:10200/zone.js",
+            "resourceBytes": 30
+          },
+          {
+            "name": "http://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js",
+            "resourceBytes": 63
+          }
+        ]
+      }
+    },
     "pwa-cross-browser": {
       "id": "pwa-cross-browser",
       "title": "Site works cross-browser",
@@ -6396,6 +6432,24 @@
         "duration": 100,
         "entryType": "measure"
       },
+      {
+        "startTime": 0,
+        "name": "lh:audit:script-treemap-data",
+        "duration": 100,
+        "entryType": "measure"
+      },
+      {
+        "startTime": 0,
+        "name": "lh:computed:JSBundles",
+        "duration": 100,
+        "entryType": "measure"
+      },
+      {
+        "startTime": 0,
+        "name": "lh:computed:ModuleDuplication",
+        "duration": 100,
+        "entryType": "measure"
+      },
       {
         "startTime": 0,
         "name": "lh:audit:pwa-cross-browser",
diff --git a/lighthouse-treemap/app/debug.json b/lighthouse-treemap/app/debug.json
index a9421d8a8487..9d5c3bd31361 100644
--- a/lighthouse-treemap/app/debug.json
+++ b/lighthouse-treemap/app/debug.json
@@ -12077,8 +12077,8 @@
         "score": null,
         "scoreDisplayMode": "informative",
         "details": {
-          "type": "debugdata",
-          "treemapData": [
+          "type": "treemap-data",
+          "nodes": [
             {
               "name": "https://www.coursehero.com/",
               "resourceBytes": 69863
diff --git a/lighthouse-treemap/app/src/main.js b/lighthouse-treemap/app/src/main.js
index 5edfd5a8c9b0..d3159c556216 100644
--- a/lighthouse-treemap/app/src/main.js
+++ b/lighthouse-treemap/app/src/main.js
@@ -33,18 +33,14 @@ class TreemapViewer {
    * @param {HTMLElement} el
    */
   constructor(options, el) {
-    const treemapDebugData = /** @type {LH.Audit.Details.DebugData} */ (
-      options.lhr.audits['script-treemap-data'].details);
-    if (!treemapDebugData || !treemapDebugData.treemapData) {
+    const scriptTreemapData = options.lhr.audits['script-treemap-data'].details;
+    if (!scriptTreemapData || scriptTreemapData.type !== 'treemap-data') {
       throw new Error('missing script-treemap-data');
     }
 
-    /** @type {LH.Treemap.Node[]} */
-    const scriptNodes = treemapDebugData.treemapData;
-
     /** @type {{[group: string]: LH.Treemap.Node[]}} */
     this.depthOneNodesByGroup = {
-      scripts: scriptNodes,
+      scripts: scriptTreemapData.nodes,
     };
 
     /**
@@ -78,7 +74,7 @@ class TreemapViewer {
     this.viewModes;
     /** @type {RenderState=} */
     this.previousRenderState;
-    /** @type {WeakMap<HTMLElement, LH.Treemap.Node>} */
+    /** @type {WeakMap<HTMLElement, NodeWithElement>} */
     this.tableRowToNodeMap = new WeakMap();
     /** @type {WebTreeMap} */
     this.treemap;
@@ -425,7 +421,7 @@ class TreemapViewer {
     const tableEl = TreemapUtil.find('.lh-table');
     tableEl.innerHTML = '';
 
-    /** @type {Array<{node: LH.Treemap.Node, name: string, bundleNode?: LH.Treemap.Node, resourceBytes: number, unusedBytes?: number}>} */
+    /** @type {Array<{node: NodeWithElement, name: string, bundleNode?: LH.Treemap.Node, resourceBytes: number, unusedBytes?: number}>} */
     const data = [];
     TreemapUtil.walk(this.currentTreemapRoot, (node, path) => {
       if (node.children) return;
diff --git a/lighthouse-treemap/app/src/util.js b/lighthouse-treemap/app/src/util.js
index e9c0d8260830..c025d0e9854b 100644
--- a/lighthouse-treemap/app/src/util.js
+++ b/lighthouse-treemap/app/src/util.js
@@ -14,7 +14,7 @@
 class TreemapUtil {
   /**
    * @param {LH.Treemap.Node} node
-   * @param {(node: LH.Treemap.Node, path: string[]) => void} fn
+   * @param {(node: NodeWithElement, path: string[]) => void} fn
    * @param {string[]=} path
    */
   static walk(node, fn, path) {
diff --git a/lighthouse-treemap/types/treemap.d.ts b/lighthouse-treemap/types/treemap.d.ts
index f74fd5fa9cad..90f85a9e8600 100644
--- a/lighthouse-treemap/types/treemap.d.ts
+++ b/lighthouse-treemap/types/treemap.d.ts
@@ -21,6 +21,11 @@ declare global {
     viewMode: LH.Treemap.ViewMode;
   }
 
+  interface NodeWithElement extends LH.Treemap.Node {
+    /** webtreemap adds dom to node data. */
+    dom?: HTMLElement;
+  }
+
   var webtreemap: {
     TreeMap: typeof WebTreeMap;
     render(el: HTMLElement, data: any, options: WebTreeMapOptions): void;
diff --git a/types/audit-details.d.ts b/types/audit-details.d.ts
index b982b7fc0d8b..6eab46c378f0 100644
--- a/types/audit-details.d.ts
+++ b/types/audit-details.d.ts
@@ -9,6 +9,7 @@ declare global {
     export type Details =
       Details.CriticalRequestChain |
       Details.DebugData |
+      Details.TreemapData |
       Details.Filmstrip |
       Details.List |
       Details.Opportunity |
@@ -97,6 +98,11 @@ declare global {
         [p: string]: any;
       }
 
+      export interface TreemapData {
+        type: 'treemap-data';
+        nodes: LH.Treemap.Node[];
+      }
+
       /** String enum of possible types of values found within table items. */
       type ItemValueType = 'bytes' | 'code' | 'link' | 'ms' | 'multi' | 'node' | 'source-location' | 'numeric' | 'text' | 'thumbnail' | 'timespanMs' | 'url';
 
diff --git a/types/audit.d.ts b/types/audit.d.ts
index 131009067bd9..68716939255d 100644
--- a/types/audit.d.ts
+++ b/types/audit.d.ts
@@ -134,7 +134,7 @@ declare global {
       /** The unit of `numericValue`, used when the consumer wishes to convert numericValue to a display string. */
       numericUnit?: string;
       /** Extra information about the page provided by some types of audits, in one of several possible forms that can be rendered in the HTML report. */
-      details?: FormattedIcu<Audit.Details>;
+      details?: FormattedIcu<LH.Audit.Details>;
     }
 
     export interface Results {
diff --git a/types/treemap.d.ts b/types/treemap.d.ts
index 74c968fab452..e1ec262512a0 100644
--- a/types/treemap.d.ts
+++ b/types/treemap.d.ts
@@ -40,8 +40,6 @@ declare global {
       /** If present, this module is a duplicate. String is normalized source path. See ModuleDuplication.normalizeSource */
       duplicatedNormalizedModuleName?: string;
       children?: Node[];
-      /** Added by webtreemap lib. */
-      dom?: HTMLElement;
     }
   }
 }