diff --git a/config.def.h b/config.def.h
index e17e96a..594e149 100644
--- a/config.def.h
+++ b/config.def.h
@@ -56,10 +56,11 @@ static const Layout layouts[] = {
 	{ "[M]",      monocle },
   { "|M|",      centeredmaster },
   { ">M>",      centeredfloatingmaster },
+  { "|||",      col },
 };
 
 /* key definitions */
-#define MODKEY Mod1Mask
+#define MODKEY Mod4Mask
 #define TAGKEYS(KEY,TAG) \
 	{ MODKEY,                       KEY,      view,           {.ui = 1 << TAG} }, \
 	{ MODKEY|ControlMask,           KEY,      toggleview,     {.ui = 1 << TAG} }, \
@@ -93,6 +94,7 @@ static Key keys[] = {
 	{ MODKEY,                       XK_m,      setlayout,      {.v = &layouts[2]} },
   { MODKEY,                       XK_u,      setlayout,      {.v = &layouts[3]} },
   { MODKEY,                       XK_o,      setlayout,      {.v = &layouts[4]} },
+  { MODKEY,                       XK_c,      setlayout,      {.v = &layouts[5]} },
 	{ MODKEY,                       XK_space,  setlayout,      {0} },
 	{ MODKEY|ShiftMask,             XK_space,  togglefloating, {0} },
 	{ MODKEY,                       XK_0,      view,           {.ui = ~0 } },
diff --git a/dwm.c b/dwm.c
index ef22ca6..7a73bcf 100644
--- a/dwm.c
+++ b/dwm.c
@@ -244,6 +244,7 @@ static void spawn(const Arg *arg);
 static Monitor *systraytomon(Monitor *m);
 static void tag(const Arg *arg);
 static void tagmon(const Arg *arg);
+static void col(Monitor *);
 static void tile(Monitor *);
 static void togglebar(const Arg *arg);
 static void togglefloating(const Arg *arg);
@@ -1963,6 +1964,32 @@ tagmon(const Arg *arg)
 	sendmon(selmon->sel, dirtomon(arg->i));
 }
 
+void
+col(Monitor *m) {
+  unsigned int i, n, h, w, x, y,mw;
+  Client *c;
+
+  for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+  if(n == 0)
+    return;
+  if(n > m->nmaster)
+    mw = m->nmaster ? m->ww * m->mfact : 0;
+  else
+    mw = m->ww;
+  for(i = x = y = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+    if(i < m->nmaster) {
+      w = (mw - x) / (MIN(n, m->nmaster)-i);
+      resize(c, x + m->wx, m->wy, w - (2*c->bw), m->wh - (2*c->bw), False);
+      x += WIDTH(c);
+    }
+    else {
+      h = (m->wh - y) / (n - i);
+      resize(c, x + m->wx, m->wy + y, m->ww - x  - (2*c->bw), h - (2*c->bw), False);
+      y += HEIGHT(c);
+    }
+  }
+}
+
 void
 tile(Monitor *m)
 {