WASHITSU REFORM HONPO Announces New Designs for "Armaji" Aluminum Sliding Doors, Retrofittable into Fusuma/Shoji Grooves
WASHITSU REFORM HONPO (Tanimoto Fusuma Koshoku Co., Ltd.) has announced the addition of new designs to its "Armaji" aluminum sliding doors, which can be retrofitted into existing fusuma and shoji grooves, catering to the expanding DIY demand and proposing construction-free interior renovations.
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- 📰 Published: April 2, 2026 at 19:10
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WASHITSU REFORM HONPO (Tanimoto Fusuma Koshoku Co., Ltd. / Osaka Prefecture), a manufacturer and seller of interior fittings, has announced the addition of new designs to its aluminum interior sliding doors, which can be installed by utilizing existing fusuma and shoji frames.
The company's aluminum sliding doors are characterized by their ability to be installed in Japanese-style rooms with old fusuma or shoji without removing the existing frames. With the addition of these new designs, the company can now meet a wider range of interior needs.
Growing Demand for Japanese-Style Room Renovation and Challenges in Fitting Replacement
In recent years, with the increase in purchases of used homes and the spread of DIY home renovations, there has been a growing need to arrange Japanese-style rooms into modern spaces.
On the other hand, replacing interior doors or sliding doors often requires construction to remove existing frames, leading to challenges such as:
・High construction costs
・Long construction periods
・Difficulty in renovating while living in the property
In response to these circumstances, the company developed aluminum sliding doors in 2008 that can be installed by utilizing existing fusuma and shoji frames, proposing a new form of interior renovation that does not involve construction.
Unique Design Compatible with Narrow Fusuma Grooves
This product adopts a design tailored to fusuma and shoji frames commonly used in Japanese homes.
A particular feature is its compatibility with "narrow fusuma grooves," which have been difficult to accommodate with conventional aluminum sliding doors.
This allows for the replacement of fusuma or shoji with aluminum sliding doors in places where only they could be installed before, improving durability and significantly changing the impression of the space.
Ready to Install on the Day of Arrival with Included Rails
The product includes a dedicated rail compatible with fusuma grooves.
Since it can be used by simply installing the rail in the existing lower groove and then inserting the sliding door, no major construction is required. It also supports DIY installation, allowing renovation without hiring a contractor.
This enables the refresh of interior spaces while keeping costs down.
Custom-Made in Millimeter Increments to Match Existing Frames
The aluminum sliding doors are custom-manufactured in millimeter increments to match the opening size.
Since existing frames can be utilized, they can be introduced in various living environments such as detached houses, condominiums, and rental properties.
Manufacturing to site-specific dimensions ensures seamless installation and a high degree of fit.
New Designs Added to Make Japanese-Style Rooms More Versatile
The newly added designs were developed to harmonize with modern residential interiors, in addition to traditional Japanese-style aesthetics.
They can accommodate Western-style tastes while retaining a Japanese atmosphere, meeting needs such as:
・Wanting to refresh the impression of old fusuma
・Wanting to stylishly renovate a Japanese-style room
・Wanting to replace interior doors by DIY
Product Overview
Product Name: Aluminum Sliding Door Border Design 02
Sales Start: March 26, 2026
Sales Site:
https://www.wasitu-reform-pro.com/hpgen/HPB/entries/13.html
This product is currently eligible for the "Self-Renovation Support Project 2026,"
During the period, benefits such as a free warranty for measurement errors are available.
Company Profile
Company Name: Tanimoto Fusuma Koshoku Co., Ltd.
Trade Name: WASHITSU REFORM HONPO
Location: Osaka Prefecture
Business Activities: Manufacturing and sales of fusuma, shoji, and interior fittings
FAQ
What kind of product is "Armaji"?
It is an aluminum sliding door that can be retrofitted into existing fusuma or shoji grooves. It can be installed without construction, allowing you to renovate Japanese-style rooms into modern spaces.
Can it be installed by DIY?
Yes, it can be installed by DIY simply by placing the dedicated rail included with the product into the existing groove and inserting the sliding door.
Where can it be installed?
It is compatible with standard fusuma and shoji frames in Japanese homes and can be installed anywhere where existing frames can be utilized, such as detached houses, condominiums, and rental properties.