diff --git a/sass/_config/_variables.scss b/sass/_config/_variables.scss
index ec2c96d..e473adb 100644
--- a/sass/_config/_variables.scss
+++ b/sass/_config/_variables.scss
@@ -79,6 +79,9 @@ $hyphens: false !default;
 // Spacing zone
 // ------------
 
+// Number of grid-columns
+$cols: 12;
+
 // Grid gutters (for .has-gutter-* classes)
 $grid-gutters: (
   '': 1rem,
diff --git a/sass/_library/grillade-flex.scss b/sass/_library/grillade-flex.scss
index 6bcb9c6..7f928eb 100644
--- a/sass/_library/grillade-flex.scss
+++ b/sass/_library/grillade-flex.scss
@@ -84,7 +84,7 @@ $iefix: 0.01px;
 }
 // Constructing grids : will be compiled in CSS
 @media (min-width: $small) {
-  @for $i from 2 through 12 {
+  @for $i from 2 through $cols {
     [class*="grid-#{$i}"] {
       @include grid(#{$i}, 0);
     }
diff --git a/sass/_library/grillade-grid.scss b/sass/_library/grillade-grid.scss
index f205a31..7f27cb9 100644
--- a/sass/_library/grillade-grid.scss
+++ b/sass/_library/grillade-grid.scss
@@ -56,15 +56,15 @@ $medium: 768px !default;
   }
 }
 
-// grid constructor (.grid-2 to .grid-12)
-@for $i from 2 through 12 {
+// grid constructor (.grid-2 to .grid-$cols)
+@for $i from 2 through $cols {
   [class*="grid-#{$i}"] {
     grid-template-columns: repeat(#{$i}, 1fr);
   }
 }
 
-// grid items constructor (.col-1 to .col-12, .row-1 to .row-12)
-@for $i from 1 through 12 {
+// grid items constructor (.col-1 to .col-$cols, .row-1 to .row-$cols)
+@for $i from 1 through $cols {
   [class*="col-#{$i}"] {
     grid-column: auto / span #{$i};
   }