diff --git a/contracts/DiamondStorage.sol b/contracts/DiamondStorage.sol
new file mode 100644
index 0000000..4bdc7f0
--- /dev/null
+++ b/contracts/DiamondStorage.sol
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+library DiamondStorage {
+    bytes32 constant DIAMOND_STORAGE_POSITION = keccak256("diamond.standard.diamond.storage");
+
+    struct Storage {
+        uint256 valueFacetA;
+        uint256 valueFacetB;
+    }
+
+    function diamondStorage() internal pure returns (Storage storage ds) {
+        bytes32 position = DIAMOND_STORAGE_POSITION;
+        assembly {
+            ds.slot := position
+        }
+    }
+}
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