Cleaned more code, still untested.

public/components/page/boundary/PageBoundary.jsx

@@ -0,0 +1,45 @@
+// Copyright (c) 2018 Dominic Masters
+//
+// MIT License
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import React from 'react';
+
+import Styles from './PageBoundary';
+
+export default (props) => {
+  let newProps = { ...props };
+  let { full, small, className } = props;
+
+  delete newProps.full;
+  delete newProps.small;
+
+  let clazzes = "c-page-boundary";
+  if(props.full) clazzes += " is-full";
+  if(props.small) clazzes += " is-small";
+  if(props.className) clazzes += " " + props.className;
+
+  return (
+    <div {...newProps} className={ clazzes }>
+      { props.children }
+    </div>
+  );
+}

public/components/page/boundary/PageBoundary.scss

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+/*
+ *  PageBoundary
+ *    Styles for the Page Boundaries
+ *
+ *  Dependencies:
+ *
+ *  Version:
+ *    1.0.0 - 2018/10/23
+ */
+.c-page-boundary {
+  max-width: $s-screen-boundary;
+  margin: 0 auto;
+
+  &.is-full {
+    position: relative;
+    height: 100%;
+  }
+
+  &.is-small {
+    max-width: $s-screen-boundary / 2;
+  }
+}