Minecraft (Pocket Edition)
The above image is an example of Spruce Stairs.
Usage / Purpose
Wooden Stairs provide two steps over a full block height. This added step provides a smoother ascent/descent over blocks. Additionally, stairs are commonly used as an angled roofing material as seen in Villages.
Stairs are stored in stacks of up to 64 units.
Stairs can also be placed upside down to provide a surface to store your delicious Cake during special occasions.
Six crafted planks of a single variety of Tree yield four stairs. In the above example Spruce is used.