ForgePatch/src/generated/resources/data/minecraft/recipes/ladder.json

{
  "type": "minecraft:crafting_shaped",
  "pattern": [
    "# #",
    "###",
    "# #"
  ],
  "key": {
    "#": {
      "tag": "forge:rods/wooden"
    }
  },
  "result": {
    "item": "minecraft:ladder",
    "count": 3
  }
}