diff -up dwm_orig_src/config.def.h dwm-6.0/config.def.h
--- dwm_orig_src/config.def.h	2012-08-25 12:34:20.847202795 -0400
+++ dwm-6.0/config.def.h	2012-08-25 11:58:15.210591031 -0400
@@ -32,6 +32,7 @@ static const Layout layouts[] = {
 	{ "[]=",      tile },    /* first entry is default */
 	{ "><>",      NULL },    /* no layout function means floating behavior */
 	{ "[M]",      monocle },
+	{ "|||",      col },
 };
 
 /* key definitions */
@@ -66,6 +67,7 @@ static Key keys[] = {
 	{ MODKEY,                       XK_t,      setlayout,      {.v = &layouts[0]} },
 	{ MODKEY,                       XK_f,      setlayout,      {.v = &layouts[1]} },
 	{ MODKEY,                       XK_m,      setlayout,      {.v = &layouts[2]} },
+	{ MODKEY,                       XK_c,      setlayout,      {.v = &layouts[3]} },
 	{ MODKEY,                       XK_space,  setlayout,      {0} },
 	{ MODKEY|ShiftMask,             XK_space,  togglefloating, {0} },
 	{ MODKEY,                       XK_0,      view,           {.ui = ~0 } },
diff -up dwm_orig_src/dwm.c dwm-6.0/dwm.c
--- dwm_orig_src/dwm.c	2012-08-25 12:34:20.847202795 -0400
+++ dwm-6.0/dwm.c	2012-08-25 12:05:54.180592952 -0400
@@ -167,6 +167,7 @@ static void cleanup(void);
 static void cleanupmon(Monitor *mon);
 static void clearurgent(Client *c);
 static void clientmessage(XEvent *e);
+static void col(Monitor *);
 static void configure(Client *c);
 static void configurenotify(XEvent *e);
 static void configurerequest(XEvent *e);
@@ -1702,6 +1703,32 @@ textnw(const char *text, unsigned int le
 }
 
 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) {
 	unsigned int i, n, h, mw, my, ty;
 	Client *c;
Only in dwm-6.0: dwm.c.orig