Wooden Floating Stair

Wooden Floating Stair is a design that appears to suspend all steps in the air, with only the side of each step connected to the wall. The floating effect is achieved by concealing the fixed parts and support structure within the wall. There is no support between each step, creating the illusion of levitation. Due to its unique and highly design-conscious appearance, light structure, and excellent permeability, it is often used in modern villa and duplex design.

To create a floating stair, the first step is to choose a reinforced concrete shear wall with a load-bearing structure that is strong enough to support the weight. Then, according to the stair design specifications, the design reference dimensions of each step are as follows:

1. The height difference between two steps is generally between 140~175mm to avoid tripping.
2. The width of each step surface is between 265~300mm, approximately equal to the length of an adult's shoe sole.
3. The finished length of each step surface should be no more than 900mm, as the shorter the overhang, the safer it will be.
4. The base thickness of the step steel frame should be ≥40mm, which has better load-bearing capacity and avoids swaying.
5. Each step can overlap by 30~50mm, making it more comfortable to use.
6. The overall slope of the stair, or the angle of each step's elevation, is approximately between 30.58°~35.26°.

Then, according to the designed steel beam plate size, locate and mark the walls for cutting, and cut the groove. The thickness of the steel beam plate is generally 16mm, and the depth of the groove can be deeper so that it can be better repaired in the later stage to avoid cracks at the connection and use chemical bolts for installation. At the same time, to improve stability, every 800mm or so on the wall can be cut with a groove to install a vertical steel frame to increase the stress point of the stair. Finally, according to the design size of each step's foundation structure, weld and fix it to the steel beam plate. The foundation structure of each step can use 6040mm or 6060mm square tubes with a wall thickness of ≥3mm.

Floating stairs are very popular in the design of modern villas because they can create a unique and highly fashionable appearance, and are therefore loved by many people.