The 
Tatami Block is a building block from the Farmer’s Delight mod that’s made from 
Canvas and 
Straw, and it looks like the woven straw mats used for floors in Japanese homes. It comes with two thinner versions as well, the 
Full Tatami Mat and the 
Half Tatami Mat, which sit flat on the floor like a carpet.
All three of them are purely decorative, so they’re there for building rather than doing anything special. What makes them different from Wool or a carpet is the way they join up, as two Tatami Blocks will pair into one long mat, and the Full Tatami Mat is two blocks long, a bit like a Bed.
Crafting
Two Canvas and two Straw placed diagonally from each other in a 2 by 2 square will give you 2 Tatami Blocks. Since Canvas is made from 4 Straw, each craft uses 10 Straw in total, so you’ll want plenty of it if you’re covering a whole floor.
2
2
2One Tatami Block will make 2 Full Tatami Mats, and one Full Tatami Mat will make 2 Half Tatami Mats. Each step can be turned back as well, so 2 Half Mats will craft into a Full Mat, and 2 Full Mats will craft back into a Tatami Block.
This means nothing is ever wasted if you change your mind about a floor. You’ll break all three of them fastest with a Knife, and they can be burned in a 
Furnace as well, though a whole Tatami Block only smelts two items, so they’re not much use as fuel.
How to Use It
Tatami Blocks
A Tatami Block is a full block, and pairs can run sideways or up and down, so you can use them on walls as well as floors. If you place one against the side of another Tatami Block that isn’t already paired, the two of them will join into one long mat, with the woven pattern running across both blocks.
If you want to place a Tatami Block without it pairing, sneak while you place it, and it will stay on its own. Each block can only pair with one other, so you’ll be able to lay out a floor in a mix of long mats and single squares, which is how you’ll get the pattern to vary across the room.
For example, click the side of the first block that points the way you want the mat to run, and the second block will pair along that line. Sneak whenever you want a single square in a gap, and it will stay on its own.
Breaking one half of a pair won’t break the other, it will just go back to being a single block. You can then place a new Tatami Block against it to pair it again, or leave it as it is if you like the look of a single square in that spot.
Tatami Mats
The Full Tatami Mat is a thin mat that’s two blocks long, and it’s placed the same way as a Bed, stretching out in front of you from the block you click. It needs two free spaces in a row with a block under both of them, or it won’t place at all.
Breaking either end of a Full Tatami Mat will remove the whole thing, and you’ll get one mat back. Both kinds of mat will also break if the block underneath them is removed, so you’ll need to place them on top of a floor rather than over a gap.
The Half Tatami Mat only covers one block, so it’s the one you’ll use to fill odd spaces at the edges of a room. It faces toward you when it’s placed, and a 
Piston will break it rather than push it, so you’ll want to keep it away from any moving parts.
FAQ
Place a Tatami Block against the side of another one that isn’t paired yet, and the two of them will join into one long mat. If you’d rather keep a block on its own, just sneak while you place it, and it won’t pair with anything.
The Full Tatami Mat is two blocks long, so it needs an empty space in front of the block you click, with a block under both halves. Try turning to face a different way, or use a Half Tatami Mat if there’s only room for one block.
The Full Tatami Mat is two blocks long and places like a Bed, while the Half Tatami Mat only covers one block. They’re both just as thin, and 2 Half Mats will craft into one Full Mat whenever you need the longer one.
