2026/07/21
Value engineering proposal using floor height compression. Is it okay to lower the height of the raised access floor? The cheapest option for construction materials is to "not use" them.
Raised Access Floor
In the construction industry, soaring construction costs have become a major problem, and delays, cancellations, or revisions of development plans due to rising costs are no longer uncommon.
Various methods are being considered to reduce construction costs, and "reducing floor height" is one such idea.
While this varies depending on various factors, it is believed that reducing floor height can potentially lower overall construction costs by several percent.
If reducing both ceiling height and ceiling cavity is difficult, how about considering changing the height of the raised access floor?
This time, we'll explain a key point: how low can the height of a raised access floor be lowered?
What are the cost-saving effects of floor-level compression?
If floor-level compression is achieved, what kinds of costs can be reduced?
By making the entire building more compact, the amount of construction materials used for both the exterior and interior is reduced.
Specifically, it is expected that costs will be reduced by minimizing or shortening the use of exterior materials, steel frames, concrete, elevator shafts, and various types of piping.
How low can the raised access floor be?
Raised access floors, which became common in office buildings around the early Heisei period, have long been accepted with a height of H100mm as an easily understandable standard.
To reduce the floor height, how low can we lower the height from 100mm?
KYODO KY-TEC offers a lineup of low-height raised access floors, and network floors can be made into raised access floors at heights of 40mm or 29mm.
If the raised access floor is changed from H100mm, a simple calculation shows that a floor height reduction of 60mm or 71mm per floor can be achieved.
Furthermore, revising the Raised Access Floor design can reduce both the main building cost and associated costs.
For further information, please read here
| Product |
|
|
|
|---|---|---|---|
| Height | H=100mm (adjustable) | H = 40mm | H = 29mm |
| Design Price | ¥20,700/m2 | ¥18,700/m2 | ¥17,500/m2 |
| Dust-proof coating | Essentially necessary | Must not | Must not |
| Construction speed | △ | 〇 | 〇 |
| Curing period | Essentially necessary | Must not | Must not |
Case studies available! 40mm and 29mm are perfectly suitable for office wiring.
If the height of the raised access floor is reduced to less than half, or even less than a third, then I think concerns about wiring capacity will arise.
In this regard,past columnsAs mentioned elsewhere, understanding the changes in the office environment from the Heisei to the Reiwa era will alleviate your concerns.
In today's world where wireless connectivity is commonplace, lowering the height of the raised access floor is considered a rational option for value engineering (VE) proposals.
Furthermore, low-profile raised access floors have a proven track record of being adopted in various offices even before the Reiwa era.
For example, at Hachioji City Hall, as of 2009, the floor area was 1,200 m² per floor.2Network Floor 29 is used in the super office space.
If it worked fine in an office 15 years ago, then it's reasonable to assume it will still work fine today, given the increased use of wireless technology.
We also have other supporting documents and performance data.
Even if you understand the concepts discussed so far, some of you may still have concerns such as, "Is this really okay in this case?" or "How should I explain this to the client and my superiors?"
For those individuals, KYODO KY-TEC can create and provide "wiring simulation diagrams."
Documentation that allows for a visual assessment of whether there is an excess or deficiency of wiring space can be used as justification for reducing the height of the raised access floor.
Furthermore, since its launch in 1986, the Network Floor series has been used in office buildings, public facilities, logistics facilities, and other locations nationwide, totaling 1,600 million square meters.2We have a track record of deliveries exceeding [number].
We can also provide data on similar projects and projects of comparable scale to your planned project. Please contact us for more details.
