diff --git a/include/workspace.h b/include/workspace.h
index 9904627d..f3bdd565 100644
--- a/include/workspace.h
+++ b/include/workspace.h
@@ -83,4 +83,17 @@ void workspace_map_clients(xcb_connection_t *conn, Workspace *ws);
  */
 void workspace_update_urgent_flag(Workspace *ws);
 
+/*
+ * Returns the width of the workspace.
+ *
+ */
+int workspace_width(Workspace *ws);
+
+/*
+ * Returns the effective height of the workspace (without the internal bar and
+ * without dock clients).
+ *
+ */
+int workspace_height(Workspace *ws);
+
 #endif
diff --git a/src/layout.c b/src/layout.c
index 37efdd04..34e9b03d 100644
--- a/src/layout.c
+++ b/src/layout.c
@@ -65,17 +65,7 @@ int get_unoccupied_x(Workspace *workspace) {
 
 /* See get_unoccupied_x() */
 int get_unoccupied_y(Workspace *workspace) {
-        int height = workspace->rect.height;
-        i3Font *font = load_font(global_conn, config.font);
-
-        /* Reserve space for dock clients */
-        Client *client;
-        SLIST_FOREACH(client, &(workspace->screen->dock_clients), dock_clients)
-                height -= client->desired_height;
-
-        /* Space for the internal bar */
-        height -= (font->height + 6);
-
+        int height = workspace_height(workspace);
         int unoccupied = height;
         float default_factor = ((float)height / workspace->rows) / height;
 
diff --git a/src/resize.c b/src/resize.c
index 0ef775dc..b9127f5b 100644
--- a/src/resize.c
+++ b/src/resize.c
@@ -27,6 +27,7 @@
 #include "xinerama.h"
 #include "config.h"
 #include "floating.h"
+#include "workspace.h"
 
 /*
  * Renders the resize window between the first/second container and resizes
@@ -221,7 +222,8 @@ void resize_container(xcb_connection_t *conn, Workspace *ws, int first, int seco
 
                 LOG("\n\n\n");
         } else {
-                int default_height = ws->rect.height / ws->rows;
+                int ws_height = workspace_height(ws);
+                int default_height = ws_height / ws->rows;
                 int old_unoccupied_y = get_unoccupied_y(ws);
 
                 /* We pre-calculate the unoccupied space to see if we need to adapt sizes before
@@ -229,7 +231,7 @@ void resize_container(xcb_connection_t *conn, Workspace *ws, int first, int seco
                 int new_unoccupied_y = old_unoccupied_y;
 
                 if (old_unoccupied_y == 0)
-                        old_unoccupied_y = ws->rect.height;
+                        old_unoccupied_y = ws_height;
 
                 if (ws->height_factor[first] == 0)
                         new_unoccupied_y += default_height;
@@ -237,6 +239,28 @@ void resize_container(xcb_connection_t *conn, Workspace *ws, int first, int seco
                 if (ws->height_factor[second] == 0)
                         new_unoccupied_y += default_height;
 
+                int cols_without_hf = 0;
+                int old_height, old_second_height;
+                for (int row = 0; row < ws->rows; row++)
+                        if (ws->height_factor[row] == 0)
+                                cols_without_hf++;
+
+                LOG("old_unoccupied_y = %d\n", old_unoccupied_y);
+
+                LOG("Updating first (before = %f)\n", ws->height_factor[first]);
+                /* Convert 0 (for default width_factor) to actual numbers */
+                if (ws->height_factor[first] == 0)
+                        old_height = (old_unoccupied_y / max(cols_without_hf, 1));
+                else old_height = ws->height_factor[first] * old_unoccupied_y;
+
+                LOG("second (before = %f)\n", ws->height_factor[second]);
+                if (ws->height_factor[second] == 0)
+                        old_second_height = (old_unoccupied_y / max(cols_without_hf, 1));
+                else old_second_height = ws->height_factor[second] * old_unoccupied_y;
+
+                LOG("middle = %f\n", ws->height_factor[first]);
+
+
                 LOG("\n\n\n");
                 LOG("old = %d, new = %d\n", old_unoccupied_y, new_unoccupied_y);
 
@@ -252,27 +276,23 @@ void resize_container(xcb_connection_t *conn, Workspace *ws, int first, int seco
                                 LOG("to %f\n", ws->height_factor[row]);
                         }
 
-                LOG("old_unoccupied_y = %d\n", old_unoccupied_y);
 
                 LOG("Updating first (before = %f)\n", ws->height_factor[first]);
                 /* Convert 0 (for default width_factor) to actual numbers */
                 if (ws->height_factor[first] == 0)
-                        ws->height_factor[first] = ((float)ws->rect.height / ws->rows) / new_unoccupied_y;
+                        ws->height_factor[first] = ((float)ws_height / ws->rows) / new_unoccupied_y;
 
-                LOG("middle = %f\n", ws->height_factor[first]);
-                int old_height = ws->height_factor[first] * old_unoccupied_y;
-                LOG("first->width = %d, pixels = %d\n", pixels);
+                LOG("first->width = %d, pixels = %d\n", old_height, pixels);
                 ws->height_factor[first] *= (float)(old_height + pixels) / old_height;
                 LOG("-> %f\n", ws->height_factor[first]);
 
 
                 LOG("Updating second (before = %f)\n", ws->height_factor[second]);
                 if (ws->height_factor[second] == 0)
-                        ws->height_factor[second] = ((float)ws->rect.height / ws->rows) / new_unoccupied_y;
+                        ws->height_factor[second] = ((float)ws_height / ws->rows) / new_unoccupied_y;
                 LOG("middle = %f\n", ws->height_factor[second]);
-                old_height = ws->height_factor[second] * old_unoccupied_y;
-                LOG("second->width = %d, pixels = %d\n", pixels);
-                ws->height_factor[second] *= (float)(old_height - pixels) / old_height;
+                LOG("second->width = %d, pixels = %d\n", old_second_height, pixels);
+                ws->height_factor[second] *= (float)(old_second_height - pixels) / old_second_height;
                 LOG("-> %f\n", ws->height_factor[second]);
 
                 LOG("new unoccupied_y = %d\n", get_unoccupied_y(ws));
diff --git a/src/workspace.c b/src/workspace.c
index c5e9ecdb..774b7c41 100644
--- a/src/workspace.c
+++ b/src/workspace.c
@@ -417,3 +417,31 @@ void workspace_update_urgent_flag(Workspace *ws) {
 
         ws->urgent = false;
 }
+
+/*
+ * Returns the width of the workspace.
+ *
+ */
+int workspace_width(Workspace *ws) {
+        return ws->rect.width;
+}
+
+/*
+ * Returns the effective height of the workspace (without the internal bar and
+ * without dock clients).
+ *
+ */
+int workspace_height(Workspace *ws) {
+        int height = ws->rect.height;
+        i3Font *font = load_font(global_conn, config.font);
+
+        /* Reserve space for dock clients */
+        Client *client;
+        SLIST_FOREACH(client, &(ws->screen->dock_clients), dock_clients)
+                height -= client->desired_height;
+
+        /* Space for the internal bar */
+        height -= (font->height + 6);
+
+        return height;
+}