Nether brick stairs are used for decorations and to change the elevation.
To make Nether Brick Stairs, you’ll need Nether-rack, Nether Brick using Furnace and Nether Brick Block. Please follow the following steps to make Nether Brick Stairs.
Nether Brick using Furnace
After that, you will have to use the furnace to make nether bricks from nether-racks. Go towards the furnace to make 24 nether bricks. Add 24 nether-racks in the upper box and coal in the lower box to get 24 bricks in the right-side box of the furnace. Add them in your “ready to use” stock.
Nether Brick Block
After that, we will have to make six nether brick blocks using the crafting table. Move to crafting table and open up 3*3 crafting grid. Add 24 nether bricks in four adjacent cells of your choice, 6 bricks in each cell as shown in the image below. You will get nether brick blocks in the right-side box of the crafting table. Add these blocks in your inventory.
Nether Brick Stairs
Now finally you can make Nether Brick Stairs using the crafting table. Add six nether brick blocks in 3*3 crafting grid in a way it should make a shape of stairs, you will get Nether Brick Stairs in the right-side box of the crafting table. Add these Nether Brick Stairs in your “ready to use” stock.