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Gathering Thatch Materials
Collect
Cattail Seeds and craft a
Cattail Seed Sack to store them. From Cattail Seeds you produce
Cattail Thatch, the base block for the cattail building set. Separately, gather
Duckweed Thatch for a second thatch variant.
Crafting Thatch Shapes
Both thatch types share the same shape family. From Cattail Thatch you can craft:
From Duckweed Thatch you can craft:
Stonecutting can produce some of these shapes directly from the base thatch block, which is faster when you need many pieces.
Roofing Technique
Lay Cattail Thatch or Duckweed Thatch as the main roof surface. Use the matching Stairs along roof edges and ridges, Slabs to cap the peak, and Vertical Slabs on gable ends where a full block would look too thick. Alternate the two thatch types on different roof sections to suggest weathering or separate wings of a building.
Storage and Use
Keep a Cattail Seed Sack near your farm so harvested Cattail Seeds go straight into storage. Thatch blocks are lightweight-looking and suit swamp huts, dockside sheds, and village builds. Combine them with
Willow Planks for walls and
Mud Bricks for foundations.

Cattail Thatch Slab
Cattail Thatch Stairs
Cattail Thatch Vertical Slab
Duckweed Thatch Slab
Duckweed Thatch Stairs
Duckweed Thatch Vertical Slab