diff --git a/src/backends/traits.rs b/src/backends/traits.rs
index 603a3b8..1698c69 100644
--- a/src/backends/traits.rs
+++ b/src/backends/traits.rs
@@ -1,7 +1,5 @@
-use super::{
-    window_event,
-    window_event::{KeyOrMouseBind, Point},
-};
+use super::window_event::{self, KeyOrMouseBind};
+use crate::util::{Point, Size};
 
 pub trait WindowServerBackend {
     type Window;
@@ -26,13 +24,13 @@ pub trait WindowServerBackend {
     fn configure_window(
         &self,
         window: Self::Window,
-        new_size: Option<Point<i32>>,
+        new_size: Option<Size<i32>>,
         new_pos: Option<Point<i32>>,
         new_border: Option<i32>,
     );
 
-    fn screen_size(&self) -> Point<i32>;
-    fn get_window_size(&self, window: Self::Window) -> Option<Point<i32>>;
+    fn screen_size(&self) -> Size<i32>;
+    fn get_window_size(&self, window: Self::Window) -> Option<Size<i32>>;
 
     fn grab_cursor(&self);
     fn ungrab_cursor(&self);
@@ -43,7 +41,7 @@ pub trait WindowServerBackend {
     fn set_active_window_border_color(&mut self, color_name: &str);
     fn set_inactive_window_border_color(&mut self, color_name: &str);
 
-    fn resize_window(&self, window: Self::Window, new_size: Point<i32>) {
+    fn resize_window(&self, window: Self::Window, new_size: Size<i32>) {
         self.configure_window(window, Some(new_size), None, None);
     }
 
diff --git a/src/backends/window_event.rs b/src/backends/window_event.rs
index 92d1e95..44ddb1e 100644
--- a/src/backends/window_event.rs
+++ b/src/backends/window_event.rs
@@ -1,6 +1,7 @@
 #![allow(dead_code)]
 
 use super::keycodes::{KeyOrButton, MouseButton, VirtualKeyCode};
+use crate::util::{Point, Size};
 use bitflags::bitflags;
 
 #[derive(Debug)]
@@ -129,8 +130,6 @@ impl<Window> KeyEvent<Window> {
     }
 }
 
-pub use crate::util::Point;
-
 #[derive(Debug)]
 pub struct ButtonEvent<Window> {
     pub window: Window,
@@ -200,11 +199,11 @@ impl<Window> DestroyEvent<Window> {
 pub struct CreateEvent<Window> {
     pub window: Window,
     pub position: Point<i32>,
-    pub size: Point<i32>,
+    pub size: Size<i32>,
 }
 
 impl<Window> CreateEvent<Window> {
-    pub fn new(window: Window, position: Point<i32>, size: Point<i32>) -> Self {
+    pub fn new(window: Window, position: Point<i32>, size: Size<i32>) -> Self {
         Self {
             window,
             position,
@@ -217,11 +216,11 @@ impl<Window> CreateEvent<Window> {
 pub struct ConfigureEvent<Window> {
     pub window: Window,
     pub position: Point<i32>,
-    pub size: Point<i32>,
+    pub size: Size<i32>,
 }
 
 impl<Window> ConfigureEvent<Window> {
-    pub fn new(window: Window, position: Point<i32>, size: Point<i32>) -> Self {
+    pub fn new(window: Window, position: Point<i32>, size: Size<i32>) -> Self {
         Self {
             window,
             position,
diff --git a/src/backends/xlib/mod.rs b/src/backends/xlib/mod.rs
index 22ee3de..4d222d1 100644
--- a/src/backends/xlib/mod.rs
+++ b/src/backends/xlib/mod.rs
@@ -1,4 +1,5 @@
 use log::{error, warn};
+use num_traits::Zero;
 use std::{ffi::CString, mem::MaybeUninit, rc::Rc};
 
 use thiserror::Error;
@@ -19,10 +20,11 @@ use super::{
     window_event::{
         ButtonEvent, ConfigureEvent, DestroyEvent, EnterEvent, FullscreenEvent,
         FullscreenState, KeyEvent, KeyOrMouseBind, KeyState, MapEvent,
-        ModifierState, MotionEvent, Point, UnmapEvent, WindowEvent,
+        ModifierState, MotionEvent, UnmapEvent, WindowEvent,
     },
     WindowServerBackend,
 };
+use crate::util::{Point, Size};
 
 pub mod color;
 pub mod keysym;
@@ -804,8 +806,8 @@ impl WindowServerBackend for XLib {
     }
 
     fn hide_window(&self, window: Self::Window) {
-        let screen_size = self.screen_size();
-        self.move_window(window, screen_size);
+        let screen_size = self.screen_size() + Size::new(100, 100);
+        self.move_window(window, screen_size.into());
     }
 
     fn kill_window(&self, window: Self::Window) {
@@ -831,17 +833,17 @@ impl WindowServerBackend for XLib {
     fn configure_window(
         &self,
         window: Self::Window,
-        new_size: Option<super::window_event::Point<i32>>,
-        new_pos: Option<super::window_event::Point<i32>>,
+        new_size: Option<crate::util::Size<i32>>,
+        new_pos: Option<crate::util::Point<i32>>,
         new_border: Option<i32>,
     ) {
-        let position = new_pos.unwrap_or(Point::new(0, 0));
-        let size = new_size.unwrap_or(Point::new(0, 0));
+        let position = new_pos.unwrap_or(Point::zero());
+        let size = new_size.unwrap_or(Size::zero());
         let mut wc = xlib::XWindowChanges {
             x: position.x,
             y: position.y,
-            width: size.x,
-            height: size.y,
+            width: size.width,
+            height: size.height,
             border_width: new_border.unwrap_or(0),
             sibling: 0,
             stack_mode: 0,
@@ -867,7 +869,7 @@ impl WindowServerBackend for XLib {
         }
     }
 
-    fn screen_size(&self) -> Point<i32> {
+    fn screen_size(&self) -> Size<i32> {
         unsafe {
             let mut wa =
                 std::mem::MaybeUninit::<xlib::XWindowAttributes>::zeroed();
@@ -880,7 +882,7 @@ impl WindowServerBackend for XLib {
         }
     }
 
-    fn get_window_size(&self, window: Self::Window) -> Option<Point<i32>> {
+    fn get_window_size(&self, window: Self::Window) -> Option<Size<i32>> {
         self.get_window_attributes(window)
             .map(|wa| (wa.width, wa.height).into())
     }
diff --git a/src/clients.rs b/src/clients.rs
index e806c08..6676d57 100644
--- a/src/clients.rs
+++ b/src/clients.rs
@@ -9,14 +9,13 @@ use crate::util::{Point, Size};
 mod client {
     use std::hash::{Hash, Hasher};
 
+    use crate::util::{Point, Size};
     use x11::xlib::Window;
 
-    use crate::backends::window_event::Point;
-
     #[derive(Clone, Debug)]
     pub struct Client {
         pub(crate) window: Window,
-        pub(crate) size: Point<i32>,
+        pub(crate) size: Size<i32>,
         pub(crate) position: Point<i32>,
         pub(crate) transient_for: Option<Window>,
         pub(crate) fullscreen: bool,
@@ -38,7 +37,7 @@ mod client {
         #[allow(dead_code)]
         pub fn new(
             window: Window,
-            size: Point<i32>,
+            size: Size<i32>,
             position: Point<i32>,
         ) -> Self {
             Self {
@@ -51,7 +50,7 @@ mod client {
 
         pub fn new_transient(
             window: Window,
-            size: Point<i32>,
+            size: Size<i32>,
             transient: Window,
         ) -> Self {
             Self {
@@ -165,7 +164,7 @@ pub struct ClientState {
     pub(self) virtual_screens: VirtualScreenStore,
 
     pub(self) gap: i32,
-    pub(self) screen_size: Point<i32>,
+    pub(self) screen_size: Size<i32>,
     pub(self) master_size: f32,
     border_size: i32,
 }
@@ -214,7 +213,7 @@ impl ClientState {
         }
     }
 
-    pub fn with_screen_size(self, screen_size: Point<i32>) -> Self {
+    pub fn with_screen_size(self, screen_size: Size<i32>) -> Self {
         Self {
             screen_size,
             ..self
@@ -248,9 +247,9 @@ impl ClientState {
             client.position = {
                 (
                     transient.position.x
-                        + (transient.size.x - client.size.x) / 2,
+                        + (transient.size.width - client.size.width) / 2,
                     transient.position.y
-                        + (transient.size.y - client.size.y) / 2,
+                        + (transient.size.height - client.size.height) / 2,
                 )
                     .into()
             };
diff --git a/src/state.rs b/src/state.rs
index bd79771..4eadd27 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -4,13 +4,14 @@ use log::{error, info};
 
 use x11::xlib::{self, Window};
 
+use crate::backends::window_event::{FullscreenEvent, FullscreenState};
+use crate::util::{Point, Size};
 use crate::{
     backends::{
         keycodes::{MouseButton, VirtualKeyCode},
         window_event::{
-            ButtonEvent, ConfigureEvent, FullscreenEvent, FullscreenState,
-            KeyBind, KeyEvent, KeyState, MapEvent, ModifierKey, ModifierState,
-            MotionEvent, MouseBind, Point, WindowEvent,
+            ButtonEvent, ConfigureEvent, KeyBind, KeyEvent, KeyState, MapEvent,
+            ModifierKey, ModifierState, MotionEvent, MouseBind, WindowEvent,
         },
         xlib::XLib,
         WindowServerBackend,
@@ -105,7 +106,7 @@ struct MoveInfoInner {
 struct ResizeInfoInner {
     window: Window,
     starting_cursor_pos: Point<i32>,
-    starting_window_size: Point<i32>,
+    starting_window_size: Size<i32>,
 }
 
 use derivative::*;
@@ -780,12 +781,7 @@ where
 
                 let client = self.clients.get(&window).unwrap();
 
-                let corner_pos = {
-                    (
-                        client.position.x + client.size.x,
-                        client.position.y + client.size.y,
-                    )
-                };
+                let corner_pos = client.position + client.size.into();
 
                 self.backend.move_cursor(None, corner_pos.into());
                 self.backend.grab_cursor();
@@ -844,8 +840,10 @@ where
                 {
                     let size = &mut client.size;
 
-                    size.x = std::cmp::max(1, info.starting_window_size.x + x);
-                    size.y = std::cmp::max(1, info.starting_window_size.y + y);
+                    size.width =
+                        std::cmp::max(1, info.starting_window_size.width + x);
+                    size.height =
+                        std::cmp::max(1, info.starting_window_size.height + y);
 
                     self.backend.resize_window(client.window, client.size);
                 }
diff --git a/src/util.rs b/src/util.rs
index 75f9d78..bfc5fc2 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -36,6 +36,47 @@ mod size {
         pub height: I,
     }
 
+    impl<I> std::ops::Add for Size<I>
+    where
+        I: num_traits::PrimInt + num_traits::Zero,
+    {
+        type Output = Self;
+
+        fn add(self, rhs: Self) -> Self::Output {
+            Self {
+                width: self.width + rhs.width,
+                height: self.height + rhs.height,
+            }
+        }
+    }
+
+    impl<I> std::ops::Sub for Size<I>
+    where
+        I: num_traits::PrimInt + num_traits::Zero,
+    {
+        type Output = Self;
+
+        fn sub(self, rhs: Self) -> Self::Output {
+            Self {
+                width: self.width - rhs.width,
+                height: self.height - rhs.height,
+            }
+        }
+    }
+
+    impl<I> num_traits::Zero for Size<I>
+    where
+        I: num_traits::PrimInt + num_traits::Zero,
+    {
+        fn zero() -> Self {
+            Self::default()
+        }
+
+        fn is_zero(&self) -> bool {
+            self.width == I::zero() && self.height == I::zero()
+        }
+    }
+
     impl<I> Default for Size<I>
     where
         I: num_traits::PrimInt + num_traits::Zero,
@@ -101,6 +142,47 @@ mod point {
         pub y: I,
     }
 
+    impl<I> std::ops::Add for Point<I>
+    where
+        I: num_traits::PrimInt + num_traits::Zero,
+    {
+        type Output = Self;
+
+        fn add(self, rhs: Self) -> Self::Output {
+            Self {
+                x: self.x + rhs.x,
+                y: self.y + rhs.y,
+            }
+        }
+    }
+
+    impl<I> std::ops::Sub for Point<I>
+    where
+        I: num_traits::PrimInt + num_traits::Zero,
+    {
+        type Output = Self;
+
+        fn sub(self, rhs: Self) -> Self::Output {
+            Self {
+                x: self.x - rhs.x,
+                y: self.y - rhs.y,
+            }
+        }
+    }
+
+    impl<I> num_traits::Zero for Point<I>
+    where
+        I: num_traits::PrimInt + num_traits::Zero,
+    {
+        fn zero() -> Self {
+            Self::default()
+        }
+
+        fn is_zero(&self) -> bool {
+            self.x == I::zero() && self.y == I::zero()
+        }
+    }
+
     impl<I> Default for Point<I>
     where
         I: num_traits::PrimInt + num_traits::Zero,