diff --git a/docs/download.html b/docs/download.html
index 3ad6ec921..3ac59b00e 100644
--- a/docs/download.html
+++ b/docs/download.html
@@ -159,15 +159,15 @@
       <input type="text" class="span3" value="darken(@linkColor, 15%)">
       <h3>Grid system</h3>
       <label>@gridColumns</label>
-      <input type="text" class="span3" value="">
+      <input type="text" class="span3" value="12">
       <label>@gridColumnWidth</label>
-      <input type="text" class="span3" value="">
+      <input type="text" class="span3" value="40px">
       <label>@gridGutterWidth</label>
-      <input type="text" class="span3" value="">
+      <input type="text" class="span3" value="20px">
       <label>@siteWidth</label>
-      <input type="text" class="span3" value="">
+      <input type="text" class="span3" value="(@gridColumns * @gridColumnWidth) + (@gridGutterWidth * (@gridColumns - 1));">
       <label>@fluidSidebarWidth</label>
-      <input type="text" class="span3" value="">
+      <input type="text" class="span3" value="220px">
     </div><!-- /span -->
     <div class="span4">
       <h3>Typography</h3>
diff --git a/docs/templates/pages/download.mustache b/docs/templates/pages/download.mustache
index 4478a006a..1401011f5 100644
--- a/docs/templates/pages/download.mustache
+++ b/docs/templates/pages/download.mustache
@@ -94,15 +94,15 @@
       <input type="text" class="span3" value="darken(@linkColor, 15%)">
       <h3>Grid system</h3>
       <label>@gridColumns</label>
-      <input type="text" class="span3" value="">
+      <input type="text" class="span3" value="12">
       <label>@gridColumnWidth</label>
-      <input type="text" class="span3" value="">
+      <input type="text" class="span3" value="40px">
       <label>@gridGutterWidth</label>
-      <input type="text" class="span3" value="">
+      <input type="text" class="span3" value="20px">
       <label>@siteWidth</label>
-      <input type="text" class="span3" value="">
+      <input type="text" class="span3" value="(@gridColumns * @gridColumnWidth) + (@gridGutterWidth * (@gridColumns - 1));">
       <label>@fluidSidebarWidth</label>
-      <input type="text" class="span3" value="">
+      <input type="text" class="span3" value="220px">
     </div><!-- /span -->
     <div class="span4">
       <h3>Typography</h3>