CASE STUDY 43
PLACE

Tokyo

OVERVIEW

Case Studies

Box type step board and supporting metal

What is a box staircase?

Have you ever heard of box staircases? I have the impression that they have become much more common in the past few years. There are a myriad of construction methods for staircases, but I think they are generally broadly classified as follows: strong metal is used to support the step portion as the structure, and several methods are used for the handrail portion. The tessellated portion in particular has a significant impact on the design. Among the thousand different methodologies, such as using glass surfaces, metal or wood railings, etc., it is common to install and fix the step board as if it were sandwiched between glass surfaces, especially when glass surfaces are used. A box-type corrugated plate refers to a type in which this corrugated plate portion is not just a plate but a box. Therefore, the part where the corrugated plate protrudes a little from the glass surface is also box-shaped, creating a unique impression.

Supported by invisible metal

When it comes to the box shape, the box portion has a larger presence. If this area is made of wood, the wooden boxes can literally be lined up in an orderly fashion to create the impression of volume. On the other hand, the structural part can be hidden, which emphasizes the texture of the box part while still having an impact. Conversely, this means that if the invisible parts are not built well, it will be difficult to make adjustments later on. To begin with, there is no difference in the structural strength between box-type step boards and normal step boards. The staircase is built up while the staircase is assembled with sturdy and strong steel materials. The difference with regular step boards is in the construction process. In the case of box-type staircases, more structural material is hidden, making it more difficult to deal with issues that are found during final inspection after installation. Therefore, it is important to be more careful when constructing box staircases.

Natural wood design with beauty and texture of treads and kicking boards

Nevertheless, the beauty of the grain and design of the wood box-shaped step boards, as well as the textured treads and kicking-in, is still exceptional. Compared with ordinary staircase steps alone, the assembly process is more difficult and requires more time for installation, but the uniqueness of the staircase stands out. Depending on the materials to be combined, it is possible to achieve a more diverse look. Box-shaped step boards have great potential. We believe that it will continue to evolve in many ways. For example, unique combinations of stone and metal materials will be possible. While continuing to accumulate safety and reliability, we will also continue to enhance our sensitivity to new materials and design features that have new expressions and meanings.