--- a/config.h	2018-02-15 15:39:21.682625300 -0500
+++ b/config.h	2018-02-15 15:41:19.860058000 -0500
@@ -3,6 +3,7 @@
 /* appearance */
 static const unsigned int borderpx  = 1;        /* border pixel of windows */
 static const unsigned int snap      = 32;       /* snap pixel */
+static const unsigned int gappx     = 18;       /* gap pixel between windows */
 static const int showbar            = 1;        /* 0 means no bar */
 static const int topbar             = 1;        /* 0 means bottom bar */
 static const char *fonts[]          = { "monospace:size=10" };
--- a/dwm.c	2018-02-15 15:39:31.769237600 -0500
+++ b/dwm.c	2018-02-15 15:50:39.404250200 -0500
@@ -1674,26 +1674,29 @@ tagmon(const Arg *arg)
 void
 tile(Monitor *m)
 {
-	unsigned int i, n, h, mw, my, ty;
+	unsigned int i, n, h, mw, my, ty, ns;
 	Client *c;
 
 	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
 	if (n == 0)
 		return;
 
-	if (n > m->nmaster)
+	if (n > m->nmaster) {
 		mw = m->nmaster ? m->ww * m->mfact : 0;
-	else
+		ns = m->nmaster > 0 ? 2 : 1;
+	} else {
 		mw = m->ww;
-	for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
+		ns = 1;
+	}
+	for(i = 0, my = ty = gappx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
 		if (i < m->nmaster) {
-			h = (m->wh - my) / (MIN(n, m->nmaster) - i);
-			resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0);
-			my += HEIGHT(c);
+			h = (m->wh - my) / (MIN(n, m->nmaster) - i) - gappx;
+			resize(c, m->wx + gappx, m->wy + my, mw - (2*c->bw) - gappx*(5-ns)/2, h - (2*c->bw), False);
+			my += HEIGHT(c) + gappx;
 		} else {
-			h = (m->wh - ty) / (n - i);
-			resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
-			ty += HEIGHT(c);
+			h = (m->wh - ty) / (n - i) - gappx;
+			resize(c, m->wx + mw + gappx/ns, m->wy + ty, m->ww - mw - (2*c->bw) - gappx*(5-ns)/2, h - (2*c->bw), False);
+			ty += HEIGHT(c) + gappx;
 		}
 }