diff --git a/keyboards/switchplate/README.md b/keyboards/switchplate/README.md
new file mode 100644
index 0000000000..166853f285
--- /dev/null
+++ b/keyboards/switchplate/README.md
@@ -0,0 +1,4 @@
+# Switchplate Peripherals
+All keyboards under the Switchplate Peripherals brand
+
+Website: [here](https://switchplate.co/)
\ No newline at end of file
diff --git a/keyboards/switchplate/southpaw_fullsize/config.h b/keyboards/switchplate/southpaw_fullsize/config.h
new file mode 100644
index 0000000000..adbb4f8db4
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/config.h
@@ -0,0 +1,143 @@
+/*
+Copyright 2020 Ryota Goto
+
+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 0xA103
+#define PRODUCT_ID 0x0017
+#define DEVICE_VER 0x0001
+#define MANUFACTURER Switchplate Peripherals
+#define PRODUCT Southpaw Fullsize
+#define DESCRIPTION A large custom keyboard
+
+/* key matrix size */
+#define MATRIX_ROWS 6
+#define MATRIX_COLS 22
+
+/*
+ * Keyboard Matrix Assignments
+ *
+ * Change this to how you wired your keyboard
+ * COLS: AVR pins used for columns, left to right
+ * ROWS: AVR pins used for rows, top to bottom
+ * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
+ * ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
+ *
+ */
+#define MATRIX_ROW_PINS { E1, C0, C1, C2, C3, C4 }
+#define MATRIX_COL_PINS { A7, C7, C6, C5, F0, F1, F2, F3, F4, F5, F6, F7, A0, A1, A2, A3, A4, A5, A6, E0, D7, D6 }
+#define UNUSED_PINS
+
+/* COL2ROW, ROW2COL*/
+#define DIODE_DIRECTION COL2ROW
+
+#define BACKLIGHT_PIN B7
+// #define BACKLIGHT_BREATHING
+#define BACKLIGHT_LEVELS 3
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+
+/* define if matrix has ghost (lacks anti-ghosting diodes) */
+//#define MATRIX_HAS_GHOST
+
+/* 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
+
+/*
+ * Magic Key Options
+ *
+ * Magic keys are hotkey commands that allow control over firmware functions of
+ * the keyboard. They are best used in combination with the HID Listen program,
+ * found here: https://www.pjrc.com/teensy/hid_listen.html
+ *
+ * The options below allow the magic key functionality to be changed. This is
+ * useful if your keyboard/keypad is missing keys and you want magic key support.
+ *
+ */
+
+/* key combination for magic key command */
+/* defined by default; to change, uncomment and set to the combination you want */
+// #define IS_COMMAND() (get_mods() == MOD_MASK_SHIFT)
+
+/* control how magic key switches layers */
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_FKEYS true
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_NKEYS true
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_CUSTOM false
+
+/* override magic key keymap */
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_FKEYS
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_NKEYS
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_CUSTOM
+//#define MAGIC_KEY_HELP H
+//#define MAGIC_KEY_HELP_ALT SLASH
+//#define MAGIC_KEY_DEBUG D
+//#define MAGIC_KEY_DEBUG_MATRIX X
+//#define MAGIC_KEY_DEBUG_KBD K
+//#define MAGIC_KEY_DEBUG_MOUSE M
+//#define MAGIC_KEY_VERSION V
+//#define MAGIC_KEY_STATUS S
+//#define MAGIC_KEY_CONSOLE C
+//#define MAGIC_KEY_LAYER0 0
+//#define MAGIC_KEY_LAYER0_ALT GRAVE
+//#define MAGIC_KEY_LAYER1 1
+//#define MAGIC_KEY_LAYER2 2
+//#define MAGIC_KEY_LAYER3 3
+//#define MAGIC_KEY_LAYER4 4
+//#define MAGIC_KEY_LAYER5 5
+//#define MAGIC_KEY_LAYER6 6
+//#define MAGIC_KEY_LAYER7 7
+//#define MAGIC_KEY_LAYER8 8
+//#define MAGIC_KEY_LAYER9 9
+//#define MAGIC_KEY_BOOTLOADER B
+//#define MAGIC_KEY_BOOTLOADER_ALT ESC
+//#define MAGIC_KEY_LOCK CAPS
+//#define MAGIC_KEY_EEPROM E
+//#define MAGIC_KEY_EEPROM_CLEAR BSPACE
+//#define MAGIC_KEY_NKRO N
+//#define MAGIC_KEY_SLEEP_LED Z
+
+/*
+ * Feature disable options
+ * These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+
+/* disable these deprecated features by default */
+#ifndef LINK_TIME_OPTIMIZATION_ENABLE
+ #define NO_ACTION_MACRO
+ #define NO_ACTION_FUNCTION
+#endif
+
+/* Bootmagic Lite key configuration */
+// #define BOOTMAGIC_LITE_ROW 0
+// #define BOOTMAGIC_LITE_COLUMN 0
diff --git a/keyboards/switchplate/southpaw_fullsize/info.json b/keyboards/switchplate/southpaw_fullsize/info.json
new file mode 100644
index 0000000000..d4823f1085
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/info.json
@@ -0,0 +1,242 @@
+{
+ "keyboard_name": "southpaw_fullsize",
+ "url": "",
+ "maintainer": "ai03",
+ "width": 22.5,
+ "height": 6.25,
+ "layouts": {
+ "LAYOUT_all": {
+ "layout": [
+ {"x":0, "y":0},
+ {"x":1, "y":0},
+ {"x":2, "y":0},
+ {"x":4.25, "y":0},
+ {"x":6.25, "y":0},
+ {"x":7.25, "y":0},
+ {"x":8.25, "y":0},
+ {"x":9.25, "y":0},
+ {"x":10.75, "y":0},
+ {"x":11.75, "y":0},
+ {"x":12.75, "y":0},
+ {"x":13.75, "y":0},
+ {"x":15.25, "y":0},
+ {"x":16.25, "y":0},
+ {"x":17.25, "y":0},
+ {"x":18.25, "y":0},
+ {"x":19.5, "y":0},
+ {"x":20.5, "y":0},
+ {"x":21.5, "y":0},
+ {"x":0, "y":1.25},
+ {"x":1, "y":1.25},
+ {"x":2, "y":1.25},
+ {"x":3, "y":1.25},
+ {"x":4.25, "y":1.25},
+ {"x":5.25, "y":1.25},
+ {"x":6.25, "y":1.25},
+ {"x":7.25, "y":1.25},
+ {"x":8.25, "y":1.25},
+ {"x":9.25, "y":1.25},
+ {"x":10.25, "y":1.25},
+ {"x":11.25, "y":1.25},
+ {"x":12.25, "y":1.25},
+ {"x":13.25, "y":1.25},
+ {"x":14.25, "y":1.25},
+ {"x":15.25, "y":1.25},
+ {"x":16.25, "y":1.25},
+ {"x":17.25, "y":1.25},
+ {"x":18.25, "y":1.25},
+ {"x":19.5, "y":1.25},
+ {"x":20.5, "y":1.25},
+ {"x":21.5, "y":1.25},
+ {"x":0, "y":2.25},
+ {"x":1, "y":2.25},
+ {"x":2, "y":2.25},
+ {"x":3, "y":2.25},
+ {"x":4.25, "y":2.25, "w":1.5},
+ {"x":5.75, "y":2.25},
+ {"x":6.75, "y":2.25},
+ {"x":7.75, "y":2.25},
+ {"x":8.75, "y":2.25},
+ {"x":9.75, "y":2.25},
+ {"x":10.75, "y":2.25},
+ {"x":11.75, "y":2.25},
+ {"x":12.75, "y":2.25},
+ {"x":13.75, "y":2.25},
+ {"x":14.75, "y":2.25},
+ {"x":15.75, "y":2.25},
+ {"x":16.75, "y":2.25},
+ {"x":17.75, "y":2.25, "w":1.5},
+ {"x":19.5, "y":2.25},
+ {"x":20.5, "y":2.25},
+ {"x":21.5, "y":2.25},
+ {"x":0, "y":3.25},
+ {"x":1, "y":3.25},
+ {"x":2, "y":3.25},
+ {"x":3, "y":3.25},
+ {"x":4.25, "y":3.25, "w":1.75},
+ {"x":6, "y":3.25},
+ {"x":7, "y":3.25},
+ {"x":8, "y":3.25},
+ {"x":9, "y":3.25},
+ {"x":10, "y":3.25},
+ {"x":11, "y":3.25},
+ {"x":12, "y":3.25},
+ {"x":13, "y":3.25},
+ {"x":14, "y":3.25},
+ {"x":15, "y":3.25},
+ {"x":16, "y":3.25},
+ {"x":17, "y":3.25},
+ {"x":18, "y":3.25, "w":1.25},
+ {"x":0, "y":4.25},
+ {"x":1, "y":4.25},
+ {"x":2, "y":4.25},
+ {"x":3, "y":4.25},
+ {"x":4.25, "y":4.25, "w":1.25},
+ {"x":5.5, "y":4.25},
+ {"x":6.5, "y":4.25},
+ {"x":7.5, "y":4.25},
+ {"x":8.5, "y":4.25},
+ {"x":9.5, "y":4.25},
+ {"x":10.5, "y":4.25},
+ {"x":11.5, "y":4.25},
+ {"x":12.5, "y":4.25},
+ {"x":13.5, "y":4.25},
+ {"x":14.5, "y":4.25},
+ {"x":15.5, "y":4.25},
+ {"x":16.5, "y":4.25, "w":1.75},
+ {"x":18.25, "y":4.25},
+ {"x":20.5, "y":4.25},
+ {"x":0, "y":5.25},
+ {"x":1, "y":5.25},
+ {"x":2, "y":5.25},
+ {"x":3, "y":5.25},
+ {"x":4.25, "y":5.25, "w":1.25},
+ {"x":5.5, "y":5.25, "w":1.25},
+ {"x":6.75, "y":5.25, "w":1.25},
+ {"x":8, "y":5.25, "w":6.25},
+ {"x":14.25, "y":5.25, "w":1.25},
+ {"x":15.5, "y":5.25, "w":1.25},
+ {"x":16.75, "y":5.25, "w":1.25},
+ {"x":18, "y":5.25, "w":1.25},
+ {"x":19.5, "y":5.25},
+ {"x":20.5, "y":5.25},
+ {"x":21.5, "y":5.25}
+ ]
+ },
+ "LAYOUT_ansi_wkl": {
+ "layout": [
+ {"x":0, "y":0},
+ {"x":1, "y":0},
+ {"x":2, "y":0},
+ {"x":4.25, "y":0},
+ {"x":6.25, "y":0},
+ {"x":7.25, "y":0},
+ {"x":8.25, "y":0},
+ {"x":9.25, "y":0},
+ {"x":10.75, "y":0},
+ {"x":11.75, "y":0},
+ {"x":12.75, "y":0},
+ {"x":13.75, "y":0},
+ {"x":15.25, "y":0},
+ {"x":16.25, "y":0},
+ {"x":17.25, "y":0},
+ {"x":18.25, "y":0},
+ {"x":19.5, "y":0},
+ {"x":20.5, "y":0},
+ {"x":21.5, "y":0},
+ {"x":0, "y":1.25},
+ {"x":1, "y":1.25},
+ {"x":2, "y":1.25},
+ {"x":3, "y":1.25},
+ {"x":4.25, "y":1.25},
+ {"x":5.25, "y":1.25},
+ {"x":6.25, "y":1.25},
+ {"x":7.25, "y":1.25},
+ {"x":8.25, "y":1.25},
+ {"x":9.25, "y":1.25},
+ {"x":10.25, "y":1.25},
+ {"x":11.25, "y":1.25},
+ {"x":12.25, "y":1.25},
+ {"x":13.25, "y":1.25},
+ {"x":14.25, "y":1.25},
+ {"x":15.25, "y":1.25},
+ {"x":16.25, "y":1.25},
+ {"x":17.25, "y":1.25},
+ {"x":18.25, "y":1.25},
+ {"x":19.5, "y":1.25},
+ {"x":20.5, "y":1.25},
+ {"x":21.5, "y":1.25},
+ {"x":0, "y":2.25},
+ {"x":1, "y":2.25},
+ {"x":2, "y":2.25},
+ {"x":3, "y":2.25},
+ {"x":4.25, "y":2.25, "w":1.5},
+ {"x":5.75, "y":2.25},
+ {"x":6.75, "y":2.25},
+ {"x":7.75, "y":2.25},
+ {"x":8.75, "y":2.25},
+ {"x":9.75, "y":2.25},
+ {"x":10.75, "y":2.25},
+ {"x":11.75, "y":2.25},
+ {"x":12.75, "y":2.25},
+ {"x":13.75, "y":2.25},
+ {"x":14.75, "y":2.25},
+ {"x":15.75, "y":2.25},
+ {"x":16.75, "y":2.25},
+ {"x":17.75, "y":2.25, "w":1.5},
+ {"x":19.5, "y":2.25},
+ {"x":20.5, "y":2.25},
+ {"x":21.5, "y":2.25},
+ {"x":0, "y":3.25},
+ {"x":1, "y":3.25},
+ {"x":2, "y":3.25},
+ {"x":3, "y":3.25},
+ {"x":4.25, "y":3.25, "w":1.75},
+ {"x":6, "y":3.25},
+ {"x":7, "y":3.25},
+ {"x":8, "y":3.25},
+ {"x":9, "y":3.25},
+ {"x":10, "y":3.25},
+ {"x":11, "y":3.25},
+ {"x":12, "y":3.25},
+ {"x":13, "y":3.25},
+ {"x":14, "y":3.25},
+ {"x":15, "y":3.25},
+ {"x":16, "y":3.25},
+ {"x":17, "y":3.25, "w":2.25},
+ {"x":0, "y":4.25},
+ {"x":1, "y":4.25},
+ {"x":2, "y":4.25},
+ {"x":3, "y":4.25},
+ {"x":4.25, "y":4.25, "w":2.25},
+ {"x":6.5, "y":4.25},
+ {"x":7.5, "y":4.25},
+ {"x":8.5, "y":4.25},
+ {"x":9.5, "y":4.25},
+ {"x":10.5, "y":4.25},
+ {"x":11.5, "y":4.25},
+ {"x":12.5, "y":4.25},
+ {"x":13.5, "y":4.25},
+ {"x":14.5, "y":4.25},
+ {"x":15.5, "y":4.25},
+ {"x":16.5, "y":4.25, "w":1.75},
+ {"x":18.25, "y":4.25},
+ {"x":20.5, "y":4.25},
+ {"x":0, "y":5.25},
+ {"x":1, "y":5.25},
+ {"x":2, "y":5.25},
+ {"x":3, "y":5.25},
+ {"x":4.25, "y":5.25, "w":1.5},
+ {"x":5.75, "y":5.25},
+ {"x":6.75, "y":5.25, "w":1.5},
+ {"x":8.25, "y":5.25, "w":7},
+ {"x":15.25, "y":5.25, "w":1.5},
+ {"x":16.75, "y":5.25},
+ {"x":17.75, "y":5.25, "w":1.5},
+ {"x":19.5, "y":5.25},
+ {"x":20.5, "y":5.25},
+ {"x":21.5, "y":5.25}
+ ]
+ }
+ }
+}
\ No newline at end of file
diff --git a/keyboards/switchplate/southpaw_fullsize/keymaps/default/keymap.c b/keyboards/switchplate/southpaw_fullsize/keymaps/default/keymap.c
new file mode 100644
index 0000000000..185c98516e
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/keymaps/default/keymap.c
@@ -0,0 +1,42 @@
+/* Copyright 2020 Ryota Goto
+ *
+ * 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
+
+// Defines names for use in layer keycodes and the keymap
+enum layer_names {
+ _BASE,
+ _FN
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ /* Base */
+ [_BASE] = LAYOUT_all (
+ BL_STEP, BL_TOGG, MO(1) , KC_ESC, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_PSCR, KC_SLCK, KC_PAUS,
+ KC_NLCK, KC_PSLS, KC_PAST, KC_PMNS, KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_BSPC, KC_INS, KC_HOME, KC_PGUP,
+ KC_P7, KC_P8, KC_P9, KC_PPLS, KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_DEL, KC_END, KC_PGDN,
+ KC_P4, KC_P5, KC_P6, KC_PPLS, KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT, KC_ENT,
+ KC_P1, KC_P2, KC_P3, KC_PENT, KC_LSFT, KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_LSFT, KC_LSFT, KC_UP,
+ KC_P0, KC_P0, KC_PDOT, KC_PENT, KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_RALT, KC_RGUI, KC_MENU, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
+ ),
+
+ [_FN] = LAYOUT_all (
+ _______, _______, _______, RESET, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______),
+};
diff --git a/keyboards/switchplate/southpaw_fullsize/keymaps/default/readme.md b/keyboards/switchplate/southpaw_fullsize/keymaps/default/readme.md
new file mode 100644
index 0000000000..aea00fdd69
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/keymaps/default/readme.md
@@ -0,0 +1,3 @@
+# The default keymap for southpaw fullsize
+
+Nothing special
\ No newline at end of file
diff --git a/keyboards/switchplate/southpaw_fullsize/keymaps/default_wkl/keymap.c b/keyboards/switchplate/southpaw_fullsize/keymaps/default_wkl/keymap.c
new file mode 100644
index 0000000000..e66da98325
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/keymaps/default_wkl/keymap.c
@@ -0,0 +1,43 @@
+/* Copyright 2020 Ryota Goto
+ *
+ * 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
+
+// Defines names for use in layer keycodes and the keymap
+enum layer_names {
+ _BASE,
+ _FN
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ /* Base */
+ [_BASE] = LAYOUT_ansi_wkl (
+ BL_STEP, BL_TOGG, MO(1) , KC_ESC, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_PSCR, KC_SLCK, KC_PAUS,
+ KC_NLCK, KC_PSLS, KC_PAST, KC_PMNS, KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_BSPC, KC_INS, KC_HOME, KC_PGUP,
+ KC_P7, KC_P8, KC_P9, KC_PPLS, KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_DEL, KC_END, KC_PGDN,
+ KC_P4, KC_P5, KC_P6, KC_PPLS, KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT,
+ KC_P1, KC_P2, KC_P3, KC_PENT, KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_LSFT, KC_LSFT, KC_UP,
+ KC_P0, KC_P0, KC_PDOT, KC_PENT, KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_RGUI, KC_MENU, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
+ ),
+
+ [_FN] = LAYOUT_ansi_wkl (
+ _______, _______, _______, RESET, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______),
+};
+
diff --git a/keyboards/switchplate/southpaw_fullsize/keymaps/default_wkl/readme.md b/keyboards/switchplate/southpaw_fullsize/keymaps/default_wkl/readme.md
new file mode 100644
index 0000000000..39dc221a47
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/keymaps/default_wkl/readme.md
@@ -0,0 +1,3 @@
+# The default WKL keymap for southpaw fullsize
+
+Nothing special
\ No newline at end of file
diff --git a/keyboards/switchplate/southpaw_fullsize/readme.md b/keyboards/switchplate/southpaw_fullsize/readme.md
new file mode 100644
index 0000000000..f44d4d46ac
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/readme.md
@@ -0,0 +1,15 @@
+# Southpaw Full Size
+
+
+
+A fullsize keyboard with southpaw numpad
+
+* Keyboard Maintainer: [Switchplate Peripherals](https://switchplate.co/)/[ai03](https://github.com/ai03-2725)
+* Hardware Supported: The Southpaw Full Size PCB
+* Hardware Availability: GB
+
+Make example for this keyboard (after setting up your build environment):
+
+ make switchplate/southpaw_fullsize:default
+
+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).
diff --git a/keyboards/switchplate/southpaw_fullsize/rules.mk b/keyboards/switchplate/southpaw_fullsize/rules.mk
new file mode 100644
index 0000000000..46d62bf5dc
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/rules.mk
@@ -0,0 +1,32 @@
+# MCU name
+MCU = at90usb1286
+
+# Bootloader selection
+# Teensy halfkay
+# Pro Micro caterina
+# Atmel DFU atmel-dfu
+# LUFA DFU lufa-dfu
+# QMK DFU qmk-dfu
+# ATmega32A bootloadHID
+# ATmega328P USBasp
+BOOTLOADER = atmel-dfu
+
+# Build Options
+# change yes to no to disable
+#
+BOOTMAGIC_ENABLE = lite # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = yes # Mouse keys
+EXTRAKEY_ENABLE = yes # Audio control and System control
+CONSOLE_ENABLE = no # Console for debug
+COMMAND_ENABLE = yes # Commands for debug and configuration
+# 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 = yes # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no # Enable keyboard RGB underglow
+MIDI_ENABLE = no # MIDI support
+BLUETOOTH_ENABLE = no # Enable Bluetooth with the Adafruit EZ-Key HID
+AUDIO_ENABLE = no # Audio output on port C6
+FAUXCLICKY_ENABLE = no # Use buzzer to emulate clicky switches
+HD44780_ENABLE = no # Enable support for HD44780 based LCDs
diff --git a/keyboards/switchplate/southpaw_fullsize/southpaw_fullsize.c b/keyboards/switchplate/southpaw_fullsize/southpaw_fullsize.c
new file mode 100644
index 0000000000..253a4fd676
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/southpaw_fullsize.c
@@ -0,0 +1,51 @@
+/* Copyright 2020 Ryota Goto
+ *
+ * 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 "southpaw_fullsize.h"
+
+// Optional override functions below.
+// You can leave any or all of these undefined.
+// These are only required if you want to perform custom actions.
+
+#define INDICATOR_NUM D3
+#define INDICATOR_CAPS D4
+#define INDICATOR_SCR D5
+
+
+void matrix_init_kb(void) {
+ // put your keyboard start-up code here
+ // runs once when the firmware starts up
+
+ // D3 Numlock, D4 Capslock, D5 Scrlock
+ setPinOutput(INDICATOR_NUM);
+ setPinOutput(INDICATOR_CAPS);
+ setPinOutput(INDICATOR_SCR);
+
+ matrix_init_user();
+}
+
+bool led_update_kb(led_t led_state) {
+ // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
+ bool res = led_update_user(led_state);
+ if (res)
+ {
+ writePin(INDICATOR_NUM, !led_state.num_lock);
+ writePin(INDICATOR_CAPS, !led_state.caps_lock);
+ writePin(INDICATOR_SCR, !led_state.scroll_lock);
+ }
+ return res;
+}
+
diff --git a/keyboards/switchplate/southpaw_fullsize/southpaw_fullsize.h b/keyboards/switchplate/southpaw_fullsize/southpaw_fullsize.h
new file mode 100644
index 0000000000..b8667f39fc
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/southpaw_fullsize.h
@@ -0,0 +1,70 @@
+/* Copyright 2020 Ryota Goto
+ *
+ * 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_all( \
+ K000, K001, K002, K004, K006, K007, K008, K009, K010, K011, K012, K013, K014, K015, K016, K017, K019, K020, K021, \
+ K100, K101, K102, K103, K104, K105, K106, K107, K108, K109, K110, K111, K112, K113, K114, K115, K116, K117, K118, K119, K120, K121, \
+ K200, K201, K202, K203, K204, K205, K206, K207, K208, K209, K210, K211, K212, K213, K214, K215, K216, K217, K219, K220, K221, \
+ K300, K301, K302, K303, K304, K305, K306, K307, K308, K309, K310, K311, K312, K313, K314, K315, K316, K317, \
+ K400, K401, K402, K403, K404, K405, K406, K407, K408, K409, K410, K411, K412, K413, K414, K415, K416, K418, K420, \
+ K500, K501, K502, K503, K504, K505, K506, K510, K513, K514, K515, K516, K519, K520, K521 \
+) \
+{ \
+ { K000, K001, K002, KC_NO, K004, KC_NO, K006, K007, K008, K009, K010, K011, K012, K013, K014, K015, K016, K017, KC_NO, K019, K020, K021 }, \
+ { K100, K101, K102, K103, K104, K105, K106, K107, K108, K109, K110, K111, K112, K113, K114, K115, K116, K117, K118, K119, K120, K121 }, \
+ { K200, K201, K202, K203, K204, K205, K206, K207, K208, K209, K210, K211, K212, K213, K214, K215, K216, K217, KC_NO, K219, K220, K221 }, \
+ { K300, K301, K302, K303, K304, K305, K306, K307, K308, K309, K310, K311, K312, K313, K314, K315, K316, K317, KC_NO, KC_NO, KC_NO, KC_NO }, \
+ { K400, K401, K402, K403, K404, K405, K406, K407, K408, K409, K410, K411, K412, K413, K414, K415, K416, KC_NO, K418, KC_NO, K420, KC_NO }, \
+ { K500, K501, K502, K503, K504, K505, K506, KC_NO, KC_NO, KC_NO, K510, KC_NO, KC_NO, K513, K514, K515, K516, KC_NO, KC_NO, K519, K520, K521 } \
+}
+
+#define LAYOUT_ansi_wkl( \
+ K000, K001, K002, K004, K006, K007, K008, K009, K010, K011, K012, K013, K014, K015, K016, K017, K019, K020, K021, \
+ K100, K101, K102, K103, K104, K105, K106, K107, K108, K109, K110, K111, K112, K113, K114, K115, K116, K117, K118, K119, K120, K121, \
+ K200, K201, K202, K203, K204, K205, K206, K207, K208, K209, K210, K211, K212, K213, K214, K215, K216, K217, K219, K220, K221, \
+ K300, K301, K302, K303, K304, K305, K306, K307, K308, K309, K310, K311, K312, K313, K314, K315, K317, \
+ K400, K401, K402, K403, K404, K406, K407, K408, K409, K410, K411, K412, K413, K414, K415, K416, K418, K420, \
+ K500, K501, K502, K503, K504, K505, K506, K510, K514, K515, K516, K519, K520, K521 \
+) \
+{ \
+ { K000, K001, K002, KC_NO, K004, KC_NO, K006, K007, K008, K009, K010, K011, K012, K013, K014, K015, K016, K017, KC_NO, K019, K020, K021 }, \
+ { K100, K101, K102, K103, K104, K105, K106, K107, K108, K109, K110, K111, K112, K113, K114, K115, K116, K117, K118, K119, K120, K121 }, \
+ { K200, K201, K202, K203, K204, K205, K206, K207, K208, K209, K210, K211, K212, K213, K214, K215, K216, K217, KC_NO, K219, K220, K221 }, \
+ { K300, K301, K302, K303, K304, K305, K306, K307, K308, K309, K310, K311, K312, K313, K314, K315, KC_NO, K317, KC_NO, KC_NO, KC_NO, KC_NO }, \
+ { K400, K401, K402, K403, K404, KC_NO, K406, K407, K408, K409, K410, K411, K412, K413, K414, K415, K416, KC_NO, K418, KC_NO, K420, KC_NO }, \
+ { K500, K501, K502, K503, K504, K505, K506, KC_NO, KC_NO, KC_NO, K510, KC_NO, KC_NO, KC_NO, K514, K515, K516, KC_NO, KC_NO, K519, K520, K521 } \
+}
+
+
+
+
+
+
+
+