diff --git a/types/react-window-size/index.d.ts b/types/react-window-size/index.d.ts
new file mode 100644
index 0000000000..8fe1a8fb8d
--- /dev/null
+++ b/types/react-window-size/index.d.ts
@@ -0,0 +1,16 @@
+// Type definitions for react-window-size 1.2
+// Project: https://github.com/finnfiddle/react-window-size
+// Definitions by: Jake Richards <https://github.com/jakejrichards>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.8
+
+import { ComponentType } from 'react';
+
+export interface WindowSizeProps {
+    windowHeight: number;
+    windowWidth: number;
+}
+
+export default function<T>(
+    ComposedComponent: ComponentType<T & WindowSizeProps>,
+): ComponentType<T>;
diff --git a/types/react-window-size/react-window-size-tests.tsx b/types/react-window-size/react-window-size-tests.tsx
new file mode 100644
index 0000000000..b16ebf1eea
--- /dev/null
+++ b/types/react-window-size/react-window-size-tests.tsx
@@ -0,0 +1,23 @@
+import * as React from 'react';
+import windowSize, { WindowSizeProps } from 'react-window-size';
+
+interface TestProps {
+    foo: string;
+}
+
+type TestInnerProps = TestProps & WindowSizeProps;
+
+const TestComponent: React.ComponentType<TestInnerProps> = ({ foo, windowHeight, windowWidth }) => {
+    foo; // $ExpectType string
+    windowHeight; // $ExpectType number
+    windowWidth; // $ExpectType number
+    return (
+        <div>
+            <p>Foo: {foo}</p>
+            <p>Window height: {windowHeight}</p>
+            <p>Window width: {windowWidth}</p>
+        </div>
+    );
+};
+
+windowSize(TestComponent); // $ExpectType ComponentType<TestProps>
diff --git a/types/react-window-size/tsconfig.json b/types/react-window-size/tsconfig.json
new file mode 100644
index 0000000000..46f5b105dd
--- /dev/null
+++ b/types/react-window-size/tsconfig.json
@@ -0,0 +1,24 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true,
+        "strictFunctionTypes": true,
+        "jsx": "react"
+    },
+    "files": [
+        "index.d.ts",
+        "react-window-size-tests.tsx"
+    ]
+}
diff --git a/types/react-window-size/tslint.json b/types/react-window-size/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/react-window-size/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }