diff --git a/superset-frontend/temporary_superset_ui/superset-ui/plugins/legacy-plugin-chart-pivot-table/src/PivotTable.js b/superset-frontend/temporary_superset_ui/superset-ui/plugins/legacy-plugin-chart-pivot-table/src/PivotTable.js
index 4b028d04eab3..9c6f8d017f8b 100644
--- a/superset-frontend/temporary_superset_ui/superset-ui/plugins/legacy-plugin-chart-pivot-table/src/PivotTable.js
+++ b/superset-frontend/temporary_superset_ui/superset-ui/plugins/legacy-plugin-chart-pivot-table/src/PivotTable.js
@@ -110,6 +110,10 @@ function PivotTable(element, props) {
       });
   });
 
+  $container.find('table').each(function fullWidth() {
+    this.style = 'width: 100%';
+  });
+
   if (numGroups === 1) {
     // When there is only 1 group by column,
     // we use the DataTable plugin to make the header fixed.
diff --git a/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-pivot-table/src/PivotTableChart.tsx b/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-pivot-table/src/PivotTableChart.tsx
index 1483af646daf..92565a565fbc 100644
--- a/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-pivot-table/src/PivotTableChart.tsx
+++ b/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-pivot-table/src/PivotTableChart.tsx
@@ -43,7 +43,7 @@ const Styles = styled.div<PivotTableStylesProps>`
   ${({ height, width, margin }) => `
       margin: ${margin}px;
       height: ${height - margin * 2}px;
-      width: ${width - margin * 2}px;
+      width: ${typeof width === 'string' ? parseInt(width, 10) : width - margin * 2}px;
  `}
 `;
 
diff --git a/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-pivot-table/src/types.ts b/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-pivot-table/src/types.ts
index bc068c04394a..004acd44f757 100644
--- a/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-pivot-table/src/types.ts
+++ b/superset-frontend/temporary_superset_ui/superset-ui/plugins/plugin-chart-pivot-table/src/types.ts
@@ -31,7 +31,7 @@ import { ColorFormatters } from '@superset-ui/chart-controls';
 
 export interface PivotTableStylesProps {
   height: number;
-  width: number;
+  width: number | string;
   margin: number;
 }