diff --git a/include/wlr/util/box.h b/include/wlr/util/box.h
index f6809e0c3..543447a5d 100644
--- a/include/wlr/util/box.h
+++ b/include/wlr/util/box.h
@@ -114,6 +114,13 @@ void wlr_fbox_transform(struct wlr_fbox *dest, const struct wlr_fbox *box,
  */
 bool wlr_box_intersects(const struct wlr_box *a, const struct wlr_box *b);
 
+/**
+ * Checks whether two boxes intersect.
+ *
+ * Returns false if either box is empty.
+ */
+bool wlr_fbox_intersects(const struct wlr_fbox *a, const struct wlr_fbox *b);
+
 /**
  * Returns true if the two boxes are equal, false otherwise.
  */
diff --git a/util/box.c b/util/box.c
index 62d405488..7221a710e 100644
--- a/util/box.c
+++ b/util/box.c
@@ -111,6 +111,15 @@ bool wlr_box_intersects(const struct wlr_box *a, const struct wlr_box *b) {
 		a->y < b->y + b->height && b->y < a->y + a->height;
 }
 
+bool wlr_fbox_intersects(const struct wlr_fbox *a, const struct wlr_fbox *b) {
+	if (wlr_fbox_empty(a) || wlr_fbox_empty(b)) {
+		return false;
+	}
+
+	return a->x < b->x + b->width && b->x < a->x + a->width &&
+		a->y < b->y + b->height && b->y < a->y + a->height;
+}
+
 void wlr_box_transform(struct wlr_box *dest, const struct wlr_box *box,
 		enum wl_output_transform transform, int width, int height) {
 	struct wlr_box src = {0};