diff --git a/src/components/Spreadsheet/Spreadsheet.tsx b/src/components/Spreadsheet/Spreadsheet.tsx
index 256664e..b3dd0bd 100644
--- a/src/components/Spreadsheet/Spreadsheet.tsx
+++ b/src/components/Spreadsheet/Spreadsheet.tsx
@@ -14,6 +14,8 @@ const Spreadsheet: FC = () => {
   });
 
   const [selectedCell, setSelectedCell] = useState<{row: number, col: number} | null>(null);
+  const [columnWidths, setColumnWidths] = useState<number[]>(Array(10).fill(96)); // 96px = w-24
+  const [rowHeights, setRowHeights] = useState<number[]>(Array(20).fill(32)); // 32px = h-8
 
   const handleCellClick = (row: number, col: number) => {
     setSelectedCell({ row, col });
@@ -31,6 +33,22 @@ const Spreadsheet: FC = () => {
     return String.fromCharCode(65 + index); // A, B, C, ...
   };
 
+  const handleResize = (colIndex: number, newWidth: number) => {
+    setColumnWidths(prev => {
+      const newWidths = [...prev];
+      newWidths[colIndex] = Math.max(60, newWidth); // Минимальная ширина 60px
+      return newWidths;
+    });
+  };
+
+  const handleRowResize = (rowIndex: number, newHeight: number) => {
+    setRowHeights(prev => {
+      const newHeights = [...prev];
+      newHeights[rowIndex] = Math.max(24, newHeight); // Минимальная высота 24px
+      return newHeights;
+    });
+  };
+
   return (
     <div className="w-full h-full bg-white">
       {/* Formula bar */}
@@ -66,9 +84,32 @@ const Spreadsheet: FC = () => {
               {Array.from({ length: 10 }, (_, i) => (
                 <th
                   key={i}
-                  className="w-24 h-8 bg-gray-100 border border-gray-300 text-xs text-gray-600 font-medium text-center sticky top-0 z-10"
+                  className="h-8 bg-gray-100 border border-gray-300 text-xs text-gray-600 font-medium text-center sticky top-0 z-10 relative"
+                  style={{ width: columnWidths[i] }}
                 >
                   {getColumnLabel(i)}
+                  {/* Resize handle */}
+                  <div
+                    className="absolute top-0 right-0 w-1 h-full cursor-col-resize hover:bg-blue-500 hover:bg-opacity-50"
+                    onMouseDown={(e) => {
+                      e.preventDefault();
+                      const startX = e.clientX;
+                      const startWidth = columnWidths[i];
+                      
+                      const handleMouseMove = (e: MouseEvent) => {
+                        const newWidth = startWidth + (e.clientX - startX);
+                        handleResize(i, newWidth);
+                      };
+                      
+                      const handleMouseUp = () => {
+                        document.removeEventListener('mousemove', handleMouseMove);
+                        document.removeEventListener('mouseup', handleMouseUp);
+                      };
+                      
+                      document.addEventListener('mousemove', handleMouseMove);
+                      document.addEventListener('mouseup', handleMouseUp);
+                    }}
+                  />
                 </th>
               ))}
             </tr>
@@ -77,18 +118,44 @@ const Spreadsheet: FC = () => {
             {cells.map((row, rowIndex) => (
               <tr key={rowIndex}>
                 {/* Row header */}
-                <td className="w-12 h-8 bg-gray-100 border border-gray-300 text-xs text-gray-600 font-medium text-center sticky left-0 z-10">
+                <td 
+                  className="w-12 bg-gray-100 border border-gray-300 text-xs text-gray-600 font-medium text-center sticky left-0 z-10 relative"
+                  style={{ height: rowHeights[rowIndex] }}
+                >
                   {rowIndex + 1}
+                  {/* Resize handle */}
+                  <div
+                    className="absolute bottom-0 left-0 w-full h-1 cursor-row-resize hover:bg-blue-500 hover:bg-opacity-50"
+                    onMouseDown={(e) => {
+                      e.preventDefault();
+                      const startY = e.clientY;
+                      const startHeight = rowHeights[rowIndex];
+                      
+                      const handleMouseMove = (e: MouseEvent) => {
+                        const newHeight = startHeight + (e.clientY - startY);
+                        handleRowResize(rowIndex, newHeight);
+                      };
+                      
+                      const handleMouseUp = () => {
+                        document.removeEventListener('mousemove', handleMouseMove);
+                        document.removeEventListener('mouseup', handleMouseUp);
+                      };
+                      
+                      document.addEventListener('mousemove', handleMouseMove);
+                      document.addEventListener('mouseup', handleMouseUp);
+                    }}
+                  />
                 </td>
                 {/* Data cells */}
                 {row.map((cell, colIndex) => (
                   <td
                     key={colIndex}
-                    className={`w-24 h-8 border border-gray-300 relative cursor-cell ${
+                    className={`border border-gray-300 relative cursor-cell ${
                       selectedCell?.row === rowIndex && selectedCell?.col === colIndex
                         ? 'bg-blue-100 border-blue-500 border-2'
                         : 'hover:bg-gray-50'
                     }`}
+                    style={{ width: columnWidths[colIndex], height: rowHeights[rowIndex] }}
                     onClick={() => handleCellClick(rowIndex, colIndex)}
                   >
                     <input