minecraft-assets/assets/minecraft/recipes/fence_gate.json

{
  "type": "crafting_shaped",
  "pattern": [
    "#W#",
    "#W#"
  ],
  "key": {
    "#": {
      "item": "minecraft:stick"
    },
    "W": {
      "item": "minecraft:planks",
      "data": 0
    }
  },
  "result": {
    "item": "minecraft:fence_gate"
  }
}