The latest stair design trends include the following:

1. Floating Stairs – These stairs are attached to the wall, giving the illusion that they are floating. They are popular for their minimalist and contemporary look.
2. Cantilever Stairs – Cantilever stairs can be used to add a modern and elegant touch to any space. They can be used in combination with steel or wood to create a unique design.
3. Curved Stairs – Curved stairs are a great way to add visual interest to a space. They can be used to create a grand entrance or to separate different areas of a home or office.
4. Spiral Stairs – Spiral stairs are a popular choice for small spaces. They are compact and take up less space than traditional stairs.
5. Combination Stairs – Combining different materials and designs, such as wood and steel or glass and wood, can create a unique and modern look.
6. Open Riser Stairs: Open riser stairs are characterized by the absence of risers, which makes the stairs look more open, airy and visually light.
7. Industrial Stairs: Industrial stairs are characterized by their raw, exposed steel and concrete look, which can be a great fit for a modern and industrial style interiors.
8. Eco-Friendly stairs : These staircases are made from sustainable materials such as bamboo, reclaimed wood and are designed to be energy efficient.

It’s important to note that these are just a few examples and there are many more options and designs available depending on the specific needs, preferences, and style of the client.