diff --git a/keyboards/horizon/config.h b/keyboards/horizon/config.h
new file mode 100644
index 000000000000..8abc3b131b3b
--- /dev/null
+++ b/keyboards/horizon/config.h
@@ -0,0 +1,46 @@
+/*
+Copyright 2021 Steven Karrmann
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see .
+*/
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0xFEED
+#define PRODUCT_ID 0x0000
+#define DEVICE_VER 0x0001
+#define MANUFACTURER Steven Karrmann
+#define PRODUCT Horizon
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 14
+
+#define MATRIX_ROW_PINS { D3, D2, D1, F4 }
+#define MATRIX_COL_PINS { F5, F6, F7, B1, B3, B2, B6, B5, B4, E6, D7, C6, D4, D0 }
+#define UNUSED_PINS { }
+
+#define DIODE_DIRECTION COL2ROW
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* disable these deprecated features by default */
+#define NO_ACTION_MACRO
+#define NO_ACTION_FUNCTION
diff --git a/keyboards/horizon/horizon.c b/keyboards/horizon/horizon.c
new file mode 100644
index 000000000000..08360325ec04
--- /dev/null
+++ b/keyboards/horizon/horizon.c
@@ -0,0 +1,17 @@
+/* Copyright 2021 Steven Karrmann
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+
+#include "horizon.h"
diff --git a/keyboards/horizon/horizon.h b/keyboards/horizon/horizon.h
new file mode 100644
index 000000000000..99577ebf9105
--- /dev/null
+++ b/keyboards/horizon/horizon.h
@@ -0,0 +1,41 @@
+/* Copyright 2021 Steven Karrmann
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+
+#pragma once
+
+#include "quantum.h"
+
+/* This is a shortcut to help you visually see your layout.
+ *
+ * The first section contains all of the arguments representing the physical
+ * layout of the board and position of the keys.
+ *
+ * The second converts the arguments into a two-dimensional array which
+ * represents the switch matrix.
+ */
+
+#define LAYOUT( \
+ k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b, \
+ k10, k11, k12, k13, k14, k15, k16, k17, k18, k19, k1a, k1b, \
+ k20, k21, k22, k23, k24, k25, k26, k27, k28, k29, k2a, k2b, k2c, k2d, \
+ k30, k31, k32, k33, k34, k35, k36, k37, k38, k39, k3a, k3b, k3c, k3d \
+) \
+{ \
+ { k00, k01, k02, k03, k04, k05, KC_NO, KC_NO, k06, k07, k08, k09, k0a, k0b }, \
+ { k10, k11, k12, k13, k14, k15, KC_NO, KC_NO, k16, k17, k18, k19, k1a, k1b }, \
+ { k20, k21, k22, k23, k24, k25, k26 , k27 , k28, k29, k2a, k2b, k2c, k2d }, \
+ { k30, k31, k32, k33, k34, k35, k36 , k37 , k38, k39, k3a, k3b, k3c, k3d } \
+}
diff --git a/keyboards/horizon/info.json b/keyboards/horizon/info.json
new file mode 100644
index 000000000000..ea5f9cb034ec
--- /dev/null
+++ b/keyboards/horizon/info.json
@@ -0,0 +1,63 @@
+{
+ "keyboard_name": "Horizon",
+ "url": "https://github.com/skarrmann/horizon",
+ "maintainer": "Steven Karrmann",
+ "layouts": {
+ "LAYOUT": {
+ "layout": [
+ { "x": 0, "y": 0 },
+ { "x": 1, "y": 0 },
+ { "x": 2, "y": 0 },
+ { "x": 3, "y": 0 },
+ { "x": 4, "y": 0 },
+ { "x": 5, "y": 0 },
+ { "x": 8, "y": 0 },
+ { "x": 9, "y": 0 },
+ { "x": 10, "y": 0 },
+ { "x": 11, "y": 0 },
+ { "x": 12, "y": 0 },
+ { "x": 13, "y": 0 },
+ { "x": 0, "y": 1 },
+ { "x": 1, "y": 1 },
+ { "x": 2, "y": 1 },
+ { "x": 3, "y": 1 },
+ { "x": 4, "y": 1 },
+ { "x": 5, "y": 1 },
+ { "x": 8, "y": 1 },
+ { "x": 9, "y": 1 },
+ { "x": 10, "y": 1 },
+ { "x": 11, "y": 1 },
+ { "x": 12, "y": 1 },
+ { "x": 13, "y": 1 },
+ { "x": 0, "y": 2 },
+ { "x": 1, "y": 2 },
+ { "x": 2, "y": 2 },
+ { "x": 3, "y": 2 },
+ { "x": 4, "y": 2 },
+ { "x": 5, "y": 2 },
+ { "x": 6, "y": 2 },
+ { "x": 7, "y": 2 },
+ { "x": 8, "y": 2 },
+ { "x": 9, "y": 2 },
+ { "x": 10, "y": 2 },
+ { "x": 11, "y": 2 },
+ { "x": 12, "y": 2 },
+ { "x": 13, "y": 2 },
+ { "x": 0, "y": 3 },
+ { "x": 1, "y": 3 },
+ { "x": 2, "y": 3 },
+ { "x": 3, "y": 3 },
+ { "x": 4, "y": 3 },
+ { "x": 5, "y": 3 },
+ { "x": 6, "y": 3 },
+ { "x": 7, "y": 3 },
+ { "x": 8, "y": 3 },
+ { "x": 9, "y": 3 },
+ { "x": 10, "y": 3 },
+ { "x": 11, "y": 3 },
+ { "x": 12, "y": 3 },
+ { "x": 13, "y": 3 }
+ ]
+ }
+ }
+}
diff --git a/keyboards/horizon/keymaps/default/keymap.c b/keyboards/horizon/keymaps/default/keymap.c
new file mode 100644
index 000000000000..b7581db2c328
--- /dev/null
+++ b/keyboards/horizon/keymaps/default/keymap.c
@@ -0,0 +1,47 @@
+/* Copyright 2021 Steven Karrmann
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+
+#include QMK_KEYBOARD_H
+
+enum layer_names {
+ _BASE,
+ _SYMBOL,
+ _FUNCTION
+};
+
+#define MO_SYMB MO(_SYMBOL)
+#define MO_FUNC MO(_FUNCTION)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [_BASE] = LAYOUT(
+ KC_GRV , KC_Q , KC_W , KC_E , KC_R , KC_T , KC_Y , KC_U , KC_I , KC_O , KC_P , KC_MINS,
+ KC_EQL , KC_A , KC_S , KC_D , KC_F , KC_G , KC_H , KC_J , KC_K , KC_L , KC_SCLN, KC_QUOT,
+ KC_LSFT, KC_Z , KC_X , KC_C , KC_V , KC_B , KC_ESC , KC_ENT , KC_N , KC_M , KC_COMM, KC_DOT , KC_SLSH, KC_RSFT,
+ KC_LCTL, KC_LALT, KC_LGUI, KC_APP , KC_DEL , KC_TAB , MO_SYMB, MO_FUNC, KC_SPC , KC_BSPC, KC_APP , KC_RGUI, KC_RALT, KC_RCTL
+ ),
+ [_SYMBOL] = LAYOUT(
+ KC_TILD, KC_1 , KC_2 , KC_3 , KC_4 , KC_5 , KC_6 , KC_7 , KC_8 , KC_9 , KC_0 , KC_UNDS,
+ KC_PLUS, KC_EXLM, KC_LPRN, KC_RPRN, KC_DLR , KC_AMPR, KC_PIPE, KC_EQL , KC_LCBR, KC_RCBR, KC_COLN, KC_DQUO,
+ _______, KC_AT , KC_LBRC, KC_RBRC, KC_HASH, KC_PERC, _______, _______, KC_CIRC, KC_ASTR, KC_LABK, KC_RABK, KC_QUES, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+ ),
+ [_FUNCTION] = LAYOUT(
+ _______, KC_F1 , KC_F2 , KC_F3 , KC_F4 , KC_PSCR, KC_SLCK, KC_HOME, KC_PGDN, KC_PGUP, KC_END , _______,
+ _______, KC_F5 , KC_F6 , KC_F7 , KC_F8 , KC_INS , KC_CLCK, KC_LEFT, KC_DOWN, KC_UP , KC_RGHT, _______,
+ _______, KC_F9 , KC_F10 , KC_F11 , KC_F12 , _______, _______, _______, _______, KC_MUTE, KC_VOLD, KC_VOLU, EEP_RST, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+ )
+};
\ No newline at end of file
diff --git a/keyboards/horizon/readme.md b/keyboards/horizon/readme.md
new file mode 100644
index 000000000000..7999503fb521
--- /dev/null
+++ b/keyboards/horizon/readme.md
@@ -0,0 +1,27 @@
+# Horizon
+
+![Horizon](https://i.imgur.com/zR0wnA6.jpg)
+
+A simple 52-key (4x14) ortholinear keyboard, powered by an Arduino Pro Micro.
+
+* Keyboard Maintainer: [Steven Karrmann](https://github.com/skarrmann)
+* Hardware Supported: Horizon PCBs, Arduino Pro Micro
+* Hardware Availability: [Horizon GitHub repository](https://github.com/skarrmann/horizon)
+
+Make example for this keyboard (after setting up your build environment):
+
+ make horizon:default
+
+Flashing example for this keyboard:
+
+ make horizon:default:flash
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* **Bootmagic reset**: Hold down the top left key and plug in the keyboard.
+* **Physical reset button**: Briefly press the button on the top center of the PCB.
+* **Keycode in layout**: Press the key mapped to `RESET` if it is available.
diff --git a/keyboards/horizon/rules.mk b/keyboards/horizon/rules.mk
new file mode 100644
index 000000000000..b484be6c0075
--- /dev/null
+++ b/keyboards/horizon/rules.mk
@@ -0,0 +1,21 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = caterina
+
+# Build Options
+# change yes to no to disable
+#
+BOOTMAGIC_ENABLE = yes # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = yes # Mouse keys
+EXTRAKEY_ENABLE = yes # Audio control and System control
+COMMAND_ENABLE = no # Commands for debug and configuration
+CONSOLE_ENABLE = yes # Console for debug
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = no # USB Nkey Rollover
+BACKLIGHT_ENABLE = no # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no # Enable keyboard RGB underglow
+AUDIO_ENABLE = no # Audio output