Hello, this is Kikuchi Soken Co., Ltd.
We are based in Ikebukuro, Tokyo, and provide interior construction and restoration services across the Kanto region and throughout Japan.
Today, we would like to introduce a new restaurant interior construction project carried out in Koishikawa, Bunkyo Ward, Tokyo.
In particular, this article will focus on the ceiling LGS (light gauge steel) framework and PB (plasterboard) installation, along with photos from the job site.
LGS Ceiling Framework Installation
The work began from a bare skeleton state, starting with the installation of LGS.
With numerous HVAC ducts and facility piping in the ceiling area, precision in layout and non-interference with existing systems were key to success.

▲ LGS framing installed around HVAC ducts.
This photo shows how the LGS framework was carefully constructed to navigate around ductwork and equipment.
Both pre-construction planning and on-site adjustments were crucial.

▲ Interior LGS framing in progress.
The framing extended to the ceiling, walls, and counter areas, all constructed with precise measurements.
Due to the high density of piping and ducts, such restaurant interiors often present complex challenges.
Plasterboard Installation (PB Work)
Next, after completing the LGS framework, PB was installed one panel at a time with care.
Special attention was required around electrical equipment and openings, making this a highly skilled process.

▲ PB being carefully applied around electrical panels and wiring. This process directly impacts the finish quality.

▲ The panels are gradually installed, clearly defining the shape of the space.
Completed Interior Photos
Here is a look at the completed interior after finishing touches were applied.
The ceiling, ventilation hoods, and indirect lighting have been beautifully integrated, resulting in a stylish and functional dining environment.

▲ Completed interior of the restaurant. The combination of LGS framing, PB, and finishing materials creates both visual and practical appeal.
Please note that our scope of work for this project covered only the LGS ceiling framing and PB installation.
However, as you can see, the full buildout resulted in a beautiful finished space.
In Conclusion
Thank you for reading this article through to the end.
As you can see, we at Kikuchi Soken are fully equipped to handle new restaurant interior projects even from a bare skeleton condition.
We will continue to share more construction examples and interior expertise, so please stay tuned.
If you are considering a renovation or build-out of a store or commercial space, feel free to contact us anytime.
☕ Interior Construction for Restaurants? Leave it to Kikuchi Soken!
Kikuchi Soken Co., Ltd. handles a wide range of new build and renovation projects for restaurants and other commercial tenants.
From LGS framing and PB installation to interior finishes and coordination with equipment contractors,
we offer expert technical support and flexible project management.
We provide full in-house construction services nationwide, from small repairs to full-scale projects.
Have questions like “Can you handle this type of job?” or “Can I just get an estimate?”
No problem—feel free to reach out anytime!
Also check out this related case study:
→ Painting in order to express difference of special preference at restaurants
Painting in order to express difference of special preference at restaurants
✨ Contact Us Anytime
As interior professionals, we strive to offer more than just competitive pricing—we aim to provide real value.
We will propose the best solutions tailored to your specific needs.
✅ Estimates welcome—no obligation
✅ Reliable work by in-house craftsmen
✅ Suitable for stores, tenants, and offices
We travel anywhere in Japan to support your project!
We look forward to hearing from you.
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※Please note that our construction services are available only within Japan.
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~~~~~~~~~~~~~~~~IKEBUKURO~~~~~~~~~~~~~~~~
📍 If you’re looking for a trusted interior contractor in Ikebukuro, contact Kikuchi Soken!
📍 We also handle restaurant build-outs and restoration projects in the Tokyo area!
〒171-0014
4-30-10 Ikebukuro, Toshima-ku, Tokyo
TEL:03-5985-4252
~~~~~~~~~~~~~~~NAISOUGYOUSHA~~~~~~~~~~~~~~
🇯🇵 A Japanese version of this article is also available.
If you’d prefer to read in Japanese, please click the link below:
👉 Click here for the Japanese version.
【文京区小石川】スケルトンからの飲食店新装工事|天井LGS&PB施工の事例紹介
Hello, everyone! This is Kikuchi Souken Company Limited website.
Our company office is based at Ikebukuro, Toshima ward, Tokyo, and in all over Kanto district, we are taking charge of《Interior decorative construction work》generally and《Recovery and restoration construction work》for you.
This time, we are roughly explaining hat joint construction work.
It is the latest version article which we also introduced before.
Hat joint construction work
https://kikusou-gr.com/wp/%e3%83%8f%e3%83%83%e3%83%88%e7%9b%ae%e5%9c%b0%e6%96%bd%e5%b7%a5/
As many of you probably wonder what on earth is hat joint?
So, we are briefly explaining it in this article at first.
If you do not need to read that explanation, and would like to see our construction work situation, then please directly visit and see the subtitle of「Hat joint construction work situation」below.
In the first place, What is joint?
Firstly, besides gypsum board which we are explaining this time, joint is pointed to be a gap arising between construction materials such as tile, stone materials and so on.
You may possibly have seen「 cauking 」was done between bricks at that mesh patterned joint between bricks and in the toilet or wet area.
As we above-mentioned, depending on materials, joint is cauked, is thrusted and filled with putty and so on, or joint materials such as joiner is embedded.
The work, Joiner seems to have the nuance of「 tying thing」.
The reason why we treat joint.
The reason why we treat joint varies a lot depending on the places and part materials. The biggest and main reason and role can be probably said「 Cutting the edge, and preventing each material from interfering and wearing. 」
Depending on the temperature and humidity, there is a possibility of materials occurring shrinking, crooking and so on.
Furthermore, because of external factors such as earthquake and so on, materials may also occur to be pushed out or pulled in toward all the direction.
Therefore, by taking joint a little widely or so, chances are that it is often executed constructing work to be able to buffered。
As for other purpose, there is an addition of decorativeness.
The joiner which we are introducing this time is a kind of joint material(changeoff material) 「which can make joint to finish with a certain interval」.
By inserting and sticking joint, there is a merit of preventing it from interfering materials each other, while making materials appear neatly.
There are various kinds of joiners. Comparing with the case of simply embedding calking, it can make a good joint in appearance.
Component materials used at different finishing places each other such as joiners, or component materials to be used at constructing different direction parts crossed such as ceiling and wall part are called 「changeoff material」.
We may be also going to introduce other changeoff materials later.
Hat joint construction work situation
Our introductory remark may have been long so far, however, we are explaining the situations of hat joint construction work site at a certain office warehouse from here.

Actually just under executing joiner situation.
In order to execute joiner, the joint is taken out rather largely than vertical direction boards’ joint each other.
Because the picture is taken as slightly going down, it may not be very clear, please pay close attention to the worker’s hand.
Rather larger joint than usually was being made in the horizontal direction. We are going to insert 「hat joiner 」in this gap.
As the joint cross section looks like silk hat, it is called hat joiner.
The purpose of inserting joiner this time is「Upper part by painting, and lower part by so- called decorative cross finishing, cutting the edge is recommended.」.
As above-mentioned, in the case of mutual materials, especially in the case that the material and the finishing or so are different, we can say that「cutting the edge」construction work is indispensable.
By cutting the edge, we can reduce what to affect painting or sticking so-called decorative cloth for external factors such as humidity, earthquake and so on.
In this connection, hat joiner is also used for outside wall part joint, besides interior decoration.
(The joiner for outside wall use is different from that of interior decorative use on size and material very much. )

Hat joiner close-up picture(As we lost the original picture data, the company logo is the former one, sorry!)
When embedding joiner, we go on sticking at the back side of joiner with glue.
At this time, in order not to leave too much glue, and in order to be able to stick firmly, we carefully go on executing construction work.
If leaving too much thickness, when finishing putty treatment, it is getting hard to flatten it, and it will take time for adjusting it.
Because it is going to be hard to adjust it by work operation as time goes on, the first step is crucial.

Finish gluing hat joiner situation.
After this, we do patty treatment again. We go on adjusting the bedding to flatten gypsum board surface.
The direct above picture is the situation of already finish gluing hat joiner generally.
After this, same as the mutual gypsum boards joint and the screw fixing place, we do putty treatment. After that, when sticking so-called decorative cloth and painting, we adjust not to arise floating or 凹, and we actually transfer the work site to the following painting・sticking so-called decorative cloth construction work process, then our work is finished.
Summary
We so far roughly explained hat joint construction work about the joint construction work itself, and the actual construction work situation as above.
As this time, in the case of different finishing at the upper part and lower part or so, 「cutting the edge 」of joiner and executing construction work of changeoff material happen to be often.
Upon your request, it is certainly possible for us to execute the relative construction work.
Besides, if you happen to have questions・counselling and so on such as「At the place like this, how should I request construction work?」, please be sure to talk with us light heartedly.
It is possible for us to answer for the . whole process, and part of the process construction work too. So, we are waiting for your relative inquiry.
Finally,
From price quotation up to construction work completion, our company is directly managing and doing construction work by ourselves. Our aim is supplying 「reasonable construction work as much as possible, and high quality, better work service」to our customers.
As construction work cost often differs very much according to work contractors, so we recommend you to compare plural quotation prices.
Comparing our quotation with others, please be sure to consider your order to us.
On 《office・shop or store(tenant)》 renewal work・redecoration work(reform work)・recovery and restoration work, we are glad to receive your construction work request from partly mending and repair work to full set of interior decorative work.
Please give us your inquiry light heartedly in the first place, as we are heartily waiting for your contact to us.
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~~~~~~~~~~~~~~~~~~~~~IKEBUKURO~~~~~~~~~~~~~~~~~~~~~
★Interior decorative construction work contractor at Ikebukuro★
★Recovery and restoration work・full set of interior decorative work・office relocation★
Kikuchi Souken Co., Ltd.
〒171-0014
Address:
4th floor, Musashiya No.3 building, 62-10, 2-chome, Ikebukuro, Toshima ward, Tokyo
Phone: 03-5985-4252
~~~~~~~~~~~Interior decorative construction work contractor~~~~~~~~~~~
Hello, everyone! This is Kikuchi Souken Company Limited website blog personnel in charge。
Our company office is based at Ikebukuro, Tokyo, executing construction work in charge of 【Interior decorative finishing work】generally【Recovery and restoration work】, for you.
Today, we researched 『Sunday carpentering work』.
Don’t you often hear the words of Sunday carpentering?
Recently, it seems that many of you rather call it DIY, don’t you?
The words of Sunday carpentering literally directly mean it. However, it may point out to mean those who have different vocation from carpentering use day-offs or spare time to do wood working.
But, a kind of rather easy and simple wood work called 「Sunday carpentering」past days later, has become own making work operation generally. The term of 「DIY」is slowly becoming popular, instead of 「Sunday carpentering, then it seems that the abbreviation of 「DIY」has been more often used recently in Japan too.
DIY is an abbreviation of 「Do it yourself」, translated in Japanese it means「Doing actual things by own self!」
Both of Sunday carpentering work and DIY may be often considered the same thing. However, actually the two meanings are a little bit different.
Literally, Sunday carpentering is 「Sunday(That is, day-offs)」not professional persons do carpentering work as a hobby on day-offs.
Shelves or tables are made by wood work too. Making interior or fashion articles which have nothing to do with wood work may also apply to DIY. This kind of making miscellaneous goods or so cannot be called Sunday carpentering, can it?
Doing wood work operation as hobby is called 「Sunday carpentering」, and doing handmade work operation including wood working by own self is called DIY, isn’t it?
Simply speaking, Sunday carpentering and DIY can be hobbies, can’t they?
You can start Sunday carpentering easily if you have imagination, materials(wood) and some tools.
The necessary tools for starting are,
Pencils, ruler (wood conversion), saw(logging), peg and hammer, or wood screw and screwdriver (for assembly).
Wood material and tools can be purchased at a do-it-yourself store.
In order to enhance quality which was already made, or to make rather complex things, a certain level of tools・technic・knowledge(experience) will be necessary.
As for painting, basic knowledge of painting, paint and tools (brush, roller or so), or paint spraying can, and tape or sheet for curing, all will be necessary.
In addition, if it comes to making house or so, then construction・plasterer knowledge・technic・tools will be necessary. If doing up to this level, it has exceeded Sunday carpentering. (Decent laugh!)
As every relative manufactured product is just like so called custom-made item in Sunday carpentering, so material unit cost tends to be high. So, cost reduction is difficult. Furthermore, in every scene, introducing new tool, additional buying of consuming items, purchasing various measuring instruments and so on also often needs additional investing. For this reason, just only for one time item, only for pricewise as it may be better to settle by purchasing mass produced products than Sunday carpentering. In that way, probably you can save cost by a lot of times.
Our company is a professional interior decorative finishing company. However, we sometimes make dog(family) house or so as a hobby too.
If a professional like us shall put our whole heart to the work, it really is tip-topl!

That is all for our explanation today.
From price quotation up to construction finishing work completion, our company is directly managing and doing actual construction work by ourselves, So we are supplying 「more reasonable and low at price, with high quality and good products」 to you.
「How much is approximate work cost?」
Your request of our price quotation is free of charge.
So, please give us your inquiry light heartedly!
Office renewal・shop or store redecorating・restoration work・reform work or the like, as for interior decorative construction work, please be sure to give your inquiry to our company light heartedly in the first place.
Please be sure to contact us.