What Is A Floating Stairwell?

In the realm of contemporary villa design, where every element reflects opulence and functionality, the staircase stands out as a focal point of architectural ingenuity. The floating staircase kit, renowned for its avant-garde aesthetics, inherent versatility, and status as a sought-after internet celebrity in the architectural world, emerges as the epitome of modern sophistication. This staircase is not merely a means of ascending or descending; it’s a visual symphony harmonizing form and function.

Related: Find the Right Staircase 

floating staircase kit

How should the suspended staircase be designed? Get up and take a look

From the following perspectives, how are suspended stairs designed?

Table of Contents

What is a suspended staircase?

Suspended stairs, known as floating or cantilevered stairs, achieve a floating effect by concealing fixtures and supporting structures.

The design features a staircase with no supports between the treads, creating the illusion of a floating staircase.

Due to this unique design, suspended stairs are highly popular in modern villa designs.

They are loved by many as they can create a very unique and fashionable look.

In modern villa design, they are considered a veritable internet celebrity staircase.

The treads of floating stairs are usually fixed to a solid wall at one end to ensure support stability.

To distribute the weight of a floating stair tread, the visible end is typically secured to a handrail or glass balustrade.

Common materials in floating staircase designs include concrete, steel, wood, and especially glass, making the staircase steps fully visible.

Styling a floating or suspended staircase offers many options.

For modern homes, metal floating staircases are an excellent choice.

Floating spiral staircases, usually made of steel, feature a center column spiral.

Popular designs combine steel with organic materials such as wood.

Another option is floating glass staircases, providing a sense of transparency that allows light to pass through.

floating staircase kit
floating staircase kit

Prerequisites for setting up floating staircase kit

Firstly, avoid fixing the floating staircase kit to a red brick wall or a non-load-bearing wall like gray block bricks. This can be unsafe, leading to accidents, as the suspended staircase relies on a single wall for support.

If the conditions aren’t met and you still want a suspended staircase, you must dismantle and hollow out the wall. Pour a concrete wall on-site, fix a 1.6-thick steel plate on the wall with chemical bolts, and then link and fix the tread plate with the steel plate.

All steps are made of European pine wood as the base layer, with the final addition of wood veneer or marble. This ensures safety and stability for the suspended staircase.

floating staircase kit

Dimension requirements for internet celebrity floating staircase kit

Determine the vertical height of each step and the total number of steps

Determine the number of steps needed and the vertical distance for each step. The crucial dimension to know first is the height difference between the finished floors, i.e., the size between the upper and lower floor surfaces. Typically, the vertical spacing between risers of stair steps is about 140-175mm, depending on the floor. Divide the height difference between the finished surfaces by the vertical spacing between step risers and round up to get the final number of steps.

floating staircase kit

Determine step side width

The side width of the steps is approximately in the range of 265-300mm. Usually it is necessary to make repeated guesses and calculations when laying out the plan until it is comfortable and reasonable to avoid being too steep or too wide, which will affect the traffic experience.

Slope

That is, the pitch angle between each step. It is a very important indicator element that affects comfort. The pitch angle of suspended stairs that meets comfort is generally 30.58 – 35.26°

floating staircase kit

Construction technology of suspended stairs

The suspended staircase is mainly composed of three major structures, namely treads, handrails and 16-18mm thick longitudinal beam profiles (steel beams)

Hollow out the wall and embed steel plates

Assemble longitudinal beam profiles like flat furniture. Measure the dimensions of the stair space, prefabricate in advance, and then fix them to the wall using chemical bolts. Ensure the wall is a load-bearing shear wall without interference from pipes. If this condition isn’t met, hollow out and dismantle the wall for red brick or block walls, then fix the prefabricated longitudinal beam profiles into it.

The role of longitudinal beam profiles

The stringer supports cantilevered treads, serving as the backbone of the steel structure and the load-bearing anchor plate for the entire suspended staircase. It must withstand stresses and rotational forces, requiring strength. Strength is ensured with four fixing points on the centerline of each step. The stringers remain rigid with multiple fixings on each step, distributing force evenly.

Welding fixed step steel plate

Despite the appearance of solid wood steps, the reality differs. In China, most steps utilize load-bearing steel structural plates, while some incorporate steel stirrups. These are integral load-bearing components. Welded to the longitudinal beam profiles on the side wall are tread plate supports.

Stair tread components

In the exploded view below, each step comprises four support profiles, an end profile, and two cover plates. The support profiles are placed in laser-cut grooves on the stringers, where they are welded to offer primary structural support for the treads. At the end of these supports, an end profile with threaded holes is present for attaching railing brackets or fixing pins. Lastly, two cap plates are welded to the top and bottom of the tread to add extra stiffness.

Fixtures

The fixing details in the structural diagram above illustrate how the stair ends are attached to the wall. The core of the suspended ceiling is that it is fixed only at one end. Behind a drywall finish, the stringers and fixtures are concealed, set off from the concrete wall. Each tread is secured with four lengths of M16 rivet resin (chemical bolts) along its centerline.

Step base treatment, installation of light strips and glass exterior

European pine board serves as the base layer for the steps.

Reserve wires and light slots.

Use marble or wood veneer for step surfaces and handrail finishes.

Install light strips, wood veneer, or dry-hanging stone on the wall.

Conceal the longitudinal beam profile.

Design steps with glass or hanging wire rope.

For households with elderly and children, opt for a glass exterior.

Finally, the suspended stairs are completed.

floating staircase kit

Conclusion

In conclusion, a floating staircase kit is a cutting-edge and aesthetically pleasing design choice for modern villas. Its popularity stems from the unique and fashionable appearance created by the illusion of the staircase floating in mid-air. This avant-garde staircase style, also known as cantilevered or floating stairs, is achieved by concealing fixtures and support structures.

Essentially, suspended stairs not only serve as a functional element in a home but also contribute to a sleek and contemporary design aesthetic. The combination of innovative construction techniques and carefully chosen materials results in a staircase that not only defies gravity but also adds a touch of sophistication to the overall architectural landscape.

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