diff --git a/keyboards/handwired/tenstad/keyboard.json b/keyboards/handwired/tenstad/keyboard.json
new file mode 100644
index 0000000000..1220d3b107
--- /dev/null
+++ b/keyboards/handwired/tenstad/keyboard.json
@@ -0,0 +1,85 @@
+{
+    "manufacturer": "Amund Tenstad",
+    "keyboard_name": "tenstad",
+    "maintainer": "tenstad",
+    "bootloader": "rp2040",
+    "diode_direction": "ROW2COL",
+    "features": {
+        "bootmagic": true,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": true
+    },
+    "matrix_pins": {
+        "cols": ["GP29", "GP28", "GP27", "GP26", "GP15", "GP14"],
+        "rows": ["GP3", "GP4", "GP5", "GP6"]
+    },
+    "processor": "RP2040",
+    "split": {
+        "enabled": true,
+        "serial": {
+            "driver": "vendor"
+        },
+        "transport": {
+            "protocol": "serial"
+        }
+    },
+    "url": "https://github.com/tenstad/keyboard",
+    "usb": {
+        "device_version": "1.0.0",
+        "pid": "0x0000",
+        "vid": "0xFEED"
+    },
+    "layouts": {
+        "LAYOUT_split_3x6_5": {
+            "layout": [
+                {"matrix": [0, 0], "x": 0, "y": 1.35},
+                {"matrix": [0, 1], "x": 1, "y": 0.95},
+                {"matrix": [0, 2], "x": 2.35, "y": 0.35},
+                {"matrix": [0, 3], "x": 3.35, "y": 0},
+                {"matrix": [0, 4], "x": 4.65, "y": 0.4},
+                {"matrix": [0, 5], "x": 5.65, "y": 0.4},
+                {"matrix": [4, 5], "x": 12.25, "y": 0.4},
+                {"matrix": [4, 4], "x": 13.25, "y": 0.4},
+                {"matrix": [4, 3], "x": 14.55, "y": 0},
+                {"matrix": [4, 2], "x": 15.55, "y": 0.35},
+                {"matrix": [4, 1], "x": 16.9, "y": 0.95},
+                {"matrix": [4, 0], "x": 17.9, "y": 1.35},
+                {"matrix": [1, 0], "x": 0.1, "y": 2.35},
+                {"matrix": [1, 1], "x": 1.1, "y": 1.95},
+                {"matrix": [1, 2], "x": 2.4, "y": 1.35},
+                {"matrix": [1, 3], "x": 3.4, "y": 1},
+                {"matrix": [1, 4], "x": 4.65, "y": 1.4},
+                {"matrix": [1, 5], "x": 5.65, "y": 1.4},
+                {"matrix": [5, 5], "x": 12.25, "y": 1.4},
+                {"matrix": [5, 4], "x": 13.25, "y": 1.4},
+                {"matrix": [5, 3], "x": 14.5, "y": 1},
+                {"matrix": [5, 2], "x": 15.5, "y": 1.35},
+                {"matrix": [5, 1], "x": 16.8, "y": 1.95},
+                {"matrix": [5, 0], "x": 17.8, "y": 2.35},
+                {"matrix": [2, 0], "x": 0.2, "y": 3.35},
+                {"matrix": [2, 1], "x": 1.2, "y": 2.95},
+                {"matrix": [2, 2], "x": 2.45, "y": 2.35},
+                {"matrix": [2, 3], "x": 3.45, "y": 2},
+                {"matrix": [2, 4], "x": 4.65, "y": 2.4},
+                {"matrix": [2, 5], "x": 5.65, "y": 2.4},
+                {"matrix": [6, 5], "x": 12.25, "y": 2.4},
+                {"matrix": [6, 4], "x": 13.25, "y": 2.4},
+                {"matrix": [6, 3], "x": 14.45, "y": 2},
+                {"matrix": [6, 2], "x": 15.45, "y": 2.35},
+                {"matrix": [6, 1], "x": 16.7, "y": 2.95},
+                {"matrix": [6, 0], "x": 17.7, "y": 3.35},
+                {"matrix": [3, 5], "x": 6.85, "y": 3},
+                {"matrix": [3, 3], "x": 7.95, "y": 3.35},
+                {"matrix": [3, 4], "x": 5.6, "y": 3.95},
+                {"matrix": [3, 1], "x": 6.7, "y": 4.1},
+                {"matrix": [3, 2], "x": 7.8, "y": 4.45},
+                {"matrix": [7, 3], "x": 9.95, "y": 3.35},
+                {"matrix": [7, 5], "x": 11.05, "y": 3},
+                {"matrix": [7, 2], "x": 10.1, "y": 4.45},
+                {"matrix": [7, 1], "x": 11.2, "y": 4.1},
+                {"matrix": [7, 4], "x": 12.3, "y": 3.95}
+            ]
+        }
+    }
+}
diff --git a/keyboards/handwired/tenstad/keymaps/default/keymap.json b/keyboards/handwired/tenstad/keymaps/default/keymap.json
new file mode 100644
index 0000000000..4882e30732
--- /dev/null
+++ b/keyboards/handwired/tenstad/keymaps/default/keymap.json
@@ -0,0 +1,55 @@
+{
+    "keyboard": "handwired/tenstad",
+    "keymap": "default",
+    "layout": "LAYOUT_split_3x6_5",
+    "layers": [
+        [
+            "KC_ESC",
+            "KC_Q",
+            "KC_W",
+            "KC_E",
+            "KC_R",
+            "KC_T",
+            "KC_Y",
+            "KC_U",
+            "KC_I",
+            "KC_O",
+            "KC_P",
+            "KC_RBRC",
+            "KC_TAB",
+            "KC_A",
+            "KC_S",
+            "KC_D",
+            "KC_F",
+            "KC_G",
+            "KC_H",
+            "KC_J",
+            "KC_K",
+            "KC_L",
+            "KC_GRV",
+            "KC_QUOT",
+            "KC_LCTL",
+            "KC_Z",
+            "KC_X",
+            "KC_C",
+            "KC_V",
+            "KC_B",
+            "KC_N",
+            "KC_M",
+            "KC_COMM",
+            "KC_DOT",
+            "KC_MINS",
+            "KC_RSFT",
+            "KC_NO",
+            "KC_NO",
+            "KC_TAB",
+            "KC_NO",
+            "KC_NO",
+            "KC_DEL",
+            "KC_NO",
+            "KC_BSPC",
+            "KC_SPC",
+            "KC_ENT"
+        ]
+    ]
+}
diff --git a/keyboards/handwired/tenstad/readme.md b/keyboards/handwired/tenstad/readme.md
new file mode 100644
index 0000000000..8ed9751330
--- /dev/null
+++ b/keyboards/handwired/tenstad/readme.md
@@ -0,0 +1,19 @@
+# tenstad
+
+![tenstad](https://i.imgur.com/Lh4TAUF.png)
+
+[tenstad/keyboard](https://github.com/tenstad/keyboard) - hand-soldered ergonomic split 3x6 keyboard with 5 thumb keys
+
+* Keyboard Maintainer: [Amund Tenstad](https://github.com/tenstad)
+* Hardware Supported: RP2040 Zero
+* Hardware Availability: [List of Parts](https://github.com/tenstad/keyboard/blob/main/README.md#parts) from [AliExpress](https://aliexpress.com)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make handwired/tenstad:default
+
+Flashing example for this keyboard:
+
+    make handwired/tenstad: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).