diff --git a/Makefile b/Makefile
index 21034d3..4894efc 100644
--- a/Makefile
+++ b/Makefile
@@ -38,7 +38,7 @@ $(BUILD) $(BIN):
 
 $(BUILD)/dorne.o: $(addprefix $(CLI)/, main.c)
 	$(call mkobj,-Icursetree)
-$(BUILD)/cursetree.o: $(addprefix $(CT)/, cursetree.c curse.c)
+$(BUILD)/cursetree.o: $(addprefix $(CT)/, cursetree.c ncrswrap.c)
 	$(call mkobj,)
 $(BUILD)/epty.o: $(addprefix $(CT)/, pty/child.c pty/epty.c pty/_pty.c)
 	$(call mkobj,)
diff --git a/cursetree/cursetree.c b/cursetree/cursetree.c
index b179f86..8d80831 100644
--- a/cursetree/cursetree.c
+++ b/cursetree/cursetree.c
@@ -2,8 +2,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "curse.h"
-#include "ncurses.h"
+#include "ncrswrap.h"
 #include "cursetree.h"
 
 /* Internal allocator method for crs_node structures.
diff --git a/cursetree/cursetree.h b/cursetree/cursetree.h
index 3418a0f..74d804f 100644
--- a/cursetree/cursetree.h
+++ b/cursetree/cursetree.h
@@ -1,5 +1,5 @@
-#ifndef DORNE_TREE_H
-#define DORNE_TREE_H
+#ifndef CURSETREE_CURSETREE_H
+#define CURSETREE_CURSETREE_H
 
 #ifndef __NCURSES_H
 typedef struct _win_st WINDOW;
@@ -60,4 +60,4 @@ void bifurcate_window_node(struct crs_node **const node,
                            const enum crs_axis axis, const int invert_axis,
                            const float ratio);
 
-#endif /* DORNE_TREE_H */
+#endif /* CURSETREE_CURSETREE_H */
diff --git a/cursetree/curse.c b/cursetree/ncrswrap.c
similarity index 97%
rename from cursetree/curse.c
rename to cursetree/ncrswrap.c
index 0549c9a..9623447 100644
--- a/cursetree/curse.c
+++ b/cursetree/ncrswrap.c
@@ -1,9 +1,8 @@
 #include <locale.h>
 #include <unistd.h>
 
-#include "curse.h"
+#include "ncrswrap.h"
 
-#define BASE_DELAY 1000000
 #define CRS_LOCALE "en_US.UTF-8"
 
 /* Set ncurses terminal mode (buffering, character processing,
diff --git a/cursetree/curse.h b/cursetree/ncrswrap.h
similarity index 87%
rename from cursetree/curse.h
rename to cursetree/ncrswrap.h
index f08d891..b73f4b5 100644
--- a/cursetree/curse.h
+++ b/cursetree/ncrswrap.h
@@ -1,5 +1,5 @@
-#ifndef DORNE_CURSE_H
-#define DORNE_CURSE_H
+#ifndef CURSETREE_NCRSWRAP_H
+#define CURSETREE_NCRSWRAP_H
 
 /* libncurses with wide-character support. */
 #include <ncursesw/ncurses.h>
@@ -26,4 +26,4 @@ WINDOW *root_window(void);
 int resizemv_window(const int x, const int y, const int width, const int height,
                     WINDOW *const win);
 
-#endif /* DORNE_CURSE_H */
+#endif /* CURSETREE_NCRSWRAP_H */
diff --git a/cursetree/node.h b/cursetree/node.h
new file mode 100644
index 0000000..bf789c3
--- /dev/null
+++ b/cursetree/node.h
@@ -0,0 +1,51 @@
+#ifndef CURSETREE_NODE_H
+#define CURSETREE_NODE_H
+
+#ifndef __NCURSES_H
+typedef struct _win_st WINDOW;
+#endif /* __NCURSES_H */
+
+#define NODE_CHILD_N 2
+
+/* MACRO:
+ * Get widnow node start x,y coordinates, width, & height.
+ * void NODEDIMS(struct crs_node *node, struct crs_nodedims dims);
+ */
+#define GET_WNODEDIMS(dims, node)                                              \
+  (getbegyx((node)->win, dims.y, dims.x));                                     \
+  getmaxyx((node)->win, dims.y, dims.x)
+
+enum crs_nodetype {
+  NODE_WINDOW,
+  NODE_ABSTRACT,
+};
+
+/* Stores a node's starting x,y coordinates, width, & height.
+ * NOTE: Intended for interfunction communication.
+ */
+struct crs_nodedims {
+  int x, y, width, height;
+};
+
+enum crs_axis {
+  AXIS_X,
+  AXIS_Y,
+};
+
+struct crs_node {
+  enum crs_nodetype type;
+  // union value depends on crs_node.type
+  union {
+    WINDOW *win;
+    struct {
+      enum crs_axis axis;
+      float ratio;
+      struct crs_nodedims *dims;
+      struct crs_node *child[NODE_CHILD_N];
+    };
+  };
+};
+
+/* === External Interface === */
+
+#endif /* CURSETREE_NODE_H */
diff --git a/cursetree/pty/_pty.h b/cursetree/pty/_pty.h
index 3c80b95..652178f 100644
--- a/cursetree/pty/_pty.h
+++ b/cursetree/pty/_pty.h
@@ -1,5 +1,5 @@
-#ifndef DORNE_MKPTY_H
-#define DORNE_MKPTY_H
+#ifndef CURSETREE_PTY_H
+#define CURSETREE_PTY_H
 
 #include <errno.h>
 #include <limits.h>
@@ -27,4 +27,4 @@ int setptsxy(const unsigned short rows, const unsigned short cols,
              const int fds);
 int getptsxy(unsigned short *rows, unsigned short *cols, const int fds);
 
-#endif /* DORNE_MKPTY_H */
+#endif /* CURSETREE_PTY_H */
diff --git a/cursetree/pty/child.h b/cursetree/pty/child.h
index 6ec3978..294b1c3 100644
--- a/cursetree/pty/child.h
+++ b/cursetree/pty/child.h
@@ -1,5 +1,5 @@
-#ifndef DORNE_CHILD_H
-#define DORNE_CHILD_H
+#ifndef CURSETREE_CHILD_H
+#define CURSETREE_CHILD_H
 
 #include <unistd.h>
 
@@ -11,4 +11,4 @@ struct d_child {
 
 int spawnchild(struct d_child *child);
 
-#endif /* DORNE_CHILD_H */
+#endif /* CURSETREE_CHILD_H */
diff --git a/cursetree/pty/epty.h b/cursetree/pty/epty.h
index 8dd18e4..fa013bb 100644
--- a/cursetree/pty/epty.h
+++ b/cursetree/pty/epty.h
@@ -1,8 +1,8 @@
-#ifndef DORNE_EPTY_H
-#define DORNE_EPTY_H
+#ifndef CURSETREE_EPTY_H
+#define CURSETREE_EPTY_H
 
 #include <sys/types.h>
 
 pid_t forkepty(int *fdmx, int *fderr);
 
-#endif /* DORNE_EPTY_H */
+#endif /* CURSETREE_EPTY_H */