diff --git a/fusion_core/css/grid16-960-rtl.css b/fusion_core/css/grid16-960-rtl.css
index fd70b66..090acf2 100644
--- a/fusion_core/css/grid16-960-rtl.css
+++ b/fusion_core/css/grid16-960-rtl.css
@@ -16,4 +16,39 @@
 .grid16-indent-12 {margin-right: 720px;}
 .grid16-indent-13 {margin-right: 780px;}
 .grid16-indent-14 {margin-right: 840px;}
-.grid16-indent-15 {margin-right: 900px;}
\ No newline at end of file
+.grid16-indent-15 {margin-right: 900px;}
+
+
+/* Layout - 16 column grid, 960px fixed width, 20px gutters
+-------------------------------------------------------------- */
+
+/* grid widths */
+.grid16-1 {width: 60px;}
+.grid16-2 {width: 120px;}
+.grid16-3 {width: 180px;}
+.grid16-4 {width: 240px;}
+.grid16-5 {width: 300px;}
+.grid16-6 {width: 360px;}
+.grid16-7 {width: 420px;}
+.grid16-8 {width: 480px;}
+.grid16-9 {width: 540px;}
+.grid16-10 {width: 600px;}
+.grid16-11 {width: 660px;}
+.grid16-12 {width: 720px;}
+.grid16-13 {width: 780px;}
+.grid16-14 {width: 840px;}
+.grid16-15 {width: 900px;}
+.grid16-16 {width: 960px;}
+
+
+
+/* gutters (2 x margin) */
+.gutter {
+  margin-left: 10px;
+  margin-right: 10px;  
+}
+
+body,
+div.full-width {
+  min-width: 960px;
+}