A Crimson Stairs block is a Nether wood stair variant crafted from Crimson Planks. It has a dark red hue. Crimson Stairs can be mined fastest using an axe but drop as an item when broken with any tool.
Crimson Stairs can be crafted using Crimson Planks. Unlike Overworld wooden stairs, they are fire-resistant and do not burn when exposed to fire or lava. Additionally, they can be placed under a note block to produce a bass sound.