Announcement of the renewal of the staircase kit specialty site "www.arke.jp"

Perfect for renovations and remodeling! Why not create a stylish space with loft stairs?

Lofts can utilize the dead space of attics, creating additional space beyond the actual floor area. This is especially useful in compact lots where expanding the house further is not possible; having a loft can be very beneficial. While a staircase is essential for such a loft, don't you have the image that "loft stairs = moving a ladder is difficult or dangerous"? The loft stairs we propose are designed with safety and comfort based on ergonomic principles, and since they are "installable," they are suitable for retrofitting in renovations and remodels. 【Features】 ■ Achieves space-saving without compromising the lifting function ■ Safe and secure design based on ergonomic principles ■ Retrofitting design suitable for renovations and remodels ■ Appropriate for loft stairs ★ For inquiries by phone, please call → TEL: 06-6584-8422 * When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Open staircase
• Loft stairs
• For indoor straight stairs

A prefabricated spiral staircase with excellent durability due to zinc (ZINK) processing! Quick delivery is a major feature.

Steel zinc is an outdoor spiral staircase made of a combination of zinc-coated hot-processed steel, which is resistant to rust and oxidation, and PVC handrails. It features an adjustable design for easy remodeling. The kit includes all necessary screws, allowing assembly to begin as soon as the product arrives. ★ For inquiries by phone, please call → TEL: 06-6584-8422 * When calling, please mention "Ipros" as your reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Spiral staircase

We promise a level of design and quality that cannot be compared to traditional ladders or loft stairs. A retrofitted design with adjustable dimensions, and a modular staircase!

"ZEN" is a smart and stylish loft staircase. It offers a design and quality that cannot be compared to traditional ladders or loft stairs. This is a kit product that includes steps, posts, and a handrail on one side. We offer a "beautiful Havana Dark with a clean impression." It features a very beautiful nuance color characteristic of European products. With an adjustable design for dimensions, it is recommended for renovations. The kit includes screws and other components, allowing assembly to begin as soon as the product arrives. 【Features】 ■ Kit product that includes steps, posts, and a handrail on one side ■ Very beautiful nuance color characteristic of European products ■ Can be installed in either straight or round shapes ■ Easy to adopt for renovations with its retrofitting design *For more details, please refer to the PDF materials or feel free to contact us. ★ For inquiries by phone, please call here → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Loft stairs

Excellent cost performance! A clean and simple handrail made of square materials.

The "Handrail Kit Series" is a handrail kit that includes a set of 150cm handrails. You can cut or connect the handrails to adjust to the necessary distance for your needs. It is a very convenient product that can be installed in various shapes and angles using joint parts. Please let us know the number of kits you need based on the required length. 【Features】 ○ Tarpaulin Gray (RAL7010) ○ Finished in a dark gray solid ○ A rare color not found in domestic products, making it a versatile color that is easy to coordinate For more details, please contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 * When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Privacy louvers and louver shutters

Natural design with wooden steps and steel lattice! There are plenty of size variations. Some items are in stock, so immediate delivery is possible.

"RING" is a spiral staircase made of a wooden tread and a steel pole. The smooth spiral PVC handrail features a wood grain finish that matches the steps. Its simple design allows it to be used in many situations. With various size options, it can accommodate everything from compact loft stairs to spacious living room stairs. It has an adjustable design for dimensions. Since it is sold as a kit that includes screws and other components, assembly can begin as soon as the product arrives. A new size compliant with building standards, measuring 178 cm, is now available. 【Features】 - Simple and natural design that works well in many situations - Wide range of size options - Diverse color variations - Both right-hand and left-hand ascent and descent are possible - Additional railings can be added for a cohesive look *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Spiral staircase
• Wooden stairs
• Loft stairs

A flexible staircase that achieves infinite configurations with three types of patterns: Type I, Type L, and Type U!

"MAS" is a flexible staircase that achieves infinite configurations from three patterns: I-type, L-type, and U-type. The wooden (beech laminated) treads are available in four colors: white, light walnut, black, and light. The steel supports come in three colors: white, black, and iron gray. The handrail design features vertical bars for the STEEL version and horizontal bars for the INOX version. 【Features】 ■ Achieves infinite configurations from three patterns: I-type, L-type, and U-type ■ Treads (beech laminated) available in four colors and supports (steel) in three colors can be combined ■ Handrail design: vertical bars for STEEL and horizontal bars for INOX *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call here → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Other fittings
• Open staircase
• Spatial Design

A flexible staircase that achieves infinite configurations with three types of patterns: Type I, Type L, and Type U!

This product has been discontinued. Please inquire about successor products. "MAS" is a flexible staircase that achieves infinite configurations from three patterns: I-type, L-type, and U-type. The wooden (beech laminated) treads are available in four colors: white, light walnut, black, and light. The steel supports come in three colors: white, black, and iron gray. The handrail design features vertical lattice steel and horizontal INOX. 【Features】 ■ Achieves infinite configurations from three patterns: I-type, L-type, and U-type. ■ Create the staircase of your dreams with a combination of four tread colors (beech laminated) and three support colors (steel). *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call here → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday from 10:00 AM to 5:00 PM.

• Open staircase

Authentic spiral staircases made using traditional Italian techniques. Custom sizes and color customization are also available.

■Design Traditional cast iron spiral staircases have a classical and heavy atmosphere, exuding genuine luxury. ■Adjustability The knockdown-style retrofit design kit can be adapted to existing buildings. ■Short Delivery Time Pre-finished products as kits enable a short delivery time. ■Delivery Route The knockdown design makes it easy to transport into existing buildings. ■Custom Orders We accommodate custom sizes and heights for our products (from one unit). ■Color Customization We produce in any color that meets the customer's wishes (from one unit). ★For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Spiral staircase
• Outdoor stairs

A flexible staircase that achieves infinite configurations with three types of patterns: Type I, Type L, and Type U!

"MAS" is a flexible staircase that achieves infinite configurations from three patterns: I-type, L-type, and U-type. The wooden (beech laminated) treads are available in four colors: white, light walnut, black, and light. The steel supports come in three colors: white, black, and iron gray. The handrail design features vertical bars for the STEEL version and horizontal bars for the INOX version. 【Features】 ■ Achieves infinite configurations from three patterns: I-type, L-type, and U-type ■ Can combine four colors of treads (beech laminated) with three colors of supports (steel) ■ Handrail design: vertical bars for STEEL and horizontal bars for INOX *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call here → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Open staircase
• Wooden stairs

Durable double-coated finish. Recommended as exterior stairs for coastal areas!

"SKY" is an outdoor spiral staircase designed to withstand stronger salt damage. It features a steel base material that is galvanized and finished with baked paint. It is available in four color variations. Additionally, a knockdown type that is easy to install and has a short delivery time is a significant feature. 【Features】 ■ Color & Material - Steel materials in white, black, gray, and dark gray ■ Space - Diameter options of 120, 140, and 160 cm ■ Height - Height can be adjusted up to 377 cm with additional parts ■ Rotation - Both right-handed and left-handed ascent and descent are possible *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "Ipros" as your reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Other fittings
• Spiral staircase
• Spatial Design

Quick and easy to assemble! Affordable outdoor straight stairs with a knockdown design.

"POPZINK" is a straight staircase made of steel, protected by zinc plating that is resistant to oxidation, designed for outdoor use. It features an innovative adjustable function and is constructed with standard parts, allowing for quick and easy assembly. The PVC parts, such as handrails, are in a gray tone. 【Features】 ■ Straight staircase made of steel, protected by zinc plating that is resistant to oxidation, designed for outdoor use ■ Horizontal structure with an innovative adjustable function ■ Can be assembled quickly and easily *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Open staircase
• Outdoor stairs
• For outdoor straight stairs

Both clockwise and counterclockwise ascent and descent are possible! A simple design that completes a full ascent in half a turn!

The "SEMIRING" is a spiral staircase made of a wooden tread and a steel pole. The smooth spiral PVC handrail is finished in the same wood grain color as the steps, featuring a simple design that allows for ascent in half a turn. You can add a handrail (length 120 cm) to achieve a cohesive coordination. It is available in two sizes: diameter 168 and 178. 【Features】 ■ Spiral staircase made of steel poles ■ Simple design that allows for ascent in half a turn ■ Available in two sizes: diameter 168 and 178 ■ Can be ascended or descended in both clockwise and counterclockwise directions ■ Handrail can be added for a cohesive coordination *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call here → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Spiral staircase
• Wooden stairs
• For indoor/curved stairs

Smooth lifting in a small space!!

Stairs that achieve an elegant finish even in small spaces These stairs are designed for use in very narrow spaces. The treads are specially shaped to allow for use in minimal space without compromising the lifting function. They are characterized by their ability to create maximum usable space with minimal footprint. Between the handrail and the steps, stainless steel cables are installed parallel to the handrail, matching the step shade. ★For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Loft stairs
• Roof and gutter construction
• Elevator installation work

The beauty of flexible layout and robustness, reinventing the concept of assembly stairs.

The knock is a highly flexible open staircase. It can be freely customized to suit the owner's preferences, housing needs, and construction conditions. - Robustness due to a patented fixing system - Modular design that adapts to any space - Customizable colors and finishes - Accurate height adjustment with transparent polycarbonate spacers - High design quality that enhances interior coordination - Versatility for both professional and DIY users - Pricing *Customers considering DIY should think carefully. ★For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "I saw it on Ipros." Business hours: Monday to Friday, from 10 AM to 5 PM.

• Open staircase

The modular staircase "kompact" allows for installation tailored to each customer's space with 156 silhouette patterns.

This is a modular staircase that can be customized into your preferred form with 156 different configuration patterns. It is the only staircase that can accommodate various requests such as riser height, width, height, depth, and rotation. The specifications include straight stairs (Kompact I), 90-degree corner stairs (Kompact L), or 180-degree corner stairs (Kompact U), offering a total of 156 variations, allowing for flexible responses to customer needs in any space. The treads and handrails are made of beech wood, available in two colors: light and dark. The steel parts can be chosen from three colors: black (RAL 9017), white (RAL 9010), and gray (RAL 9006). The point parts will match the color of the steel parts, with black accompanying black, and gray accompanying gray and white. ★ For inquiries by phone, please call → TEL: 06-6584-8422 * When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Open staircase
• Loft stairs

A simple and authentic spiral staircase made of natural wood and steel.

KLAN consists of beach wood steps, beautifully painted steel posts, and wood-like handrails (with an aluminum core inside PVC). It features an ergonomic design for safety and security, making it ideal for retrofitting and renovations with its add-on design. The advantages of space-saving and the choice of clockwise or counterclockwise options allow for a down step to be positioned as desired. It is recommended for installation in spaces where aesthetics are important, such as living rooms and entrance halls. ★ For inquiries by phone, please call → TEL: 06-6584-8422 * When calling, please mention "Ipros" as your reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Spiral staircase
• Wooden stairs

Durable, non-slip polyurethane panels arranged! Simple indoor spiral staircase "STEEL".

"STEEL" is a spiral staircase that ensures safety and security. It features built-in press molding with a baked-on finish, and is equipped with durable, non-slip polyurethane panels (gray) to ensure safety and security. The color options include RAL9010 (EU standard) white and chrome, typical of European products, along with a vibrant color series. It balances realistic pricing with excellent quality. 【Features】 ■ Built-in press molding ■ Beautiful finish with baked-on coating ■ Durable, non-slip polyurethane panels ensure safety and security ■ Balances realistic pricing with excellent quality ■ Available in both right-hand and left-hand ascent/descent *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "Ipros" as your reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Spiral staircase
• Loft stairs
• Residential interior systems

Recommended for retrofitting after renovations due to its assembly design! Italian-designed spiral staircase.

The "CIVIK" is a modern spiral staircase finished with powder coating on all steel. Designed based on ergonomic principles, the spiral staircase can be installed in any location, and the descent is smooth. All components are built-in press-formed, ensuring safety with non-slip panels. 【Features】 ■ Color - Steel available in three colors (White, Black, Gray) ■ Space - Floor diameter of 140 or 160 cm ■ Height - Adjustable up to 376 cm with additional parts ■ Rotation - Can be ascended and descended in both clockwise and counterclockwise directions ■ Options - Add a handrail for a cohesive design *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "Ipros" for reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Spiral staircase
• Loft stairs
• Roof and gutter construction

Make access to lofts and attic spaces smarter!

"Magia" is a compact spiral staircase. It provides smarter access to spaces like lofts and attics where you want to move up and down in a space-saving manner. The treads are available in white and black MDF, or a mixed color. The steel components, such as the posts, are white. 【Features】 ■ Compact design ■ Treads available in white, black, or mixed color MDF ■ Steel components, such as posts, are white ■ Size: Floor dimensions 118 x 66 cm (for 12 steps) * Import arrangements and actual import costs will be added after order confirmation. * Specifications and prices are subject to change without notice. * For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call: TEL: 06-6584-8422 * When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Other fittings
• Spiral staircase
• Spatial Design

A spiral staircase with a "minimalist design" that can match any interior image.

"SLIM" is a sophisticated indoor spiral staircase designed with elegant, very light lines and strong steel. We offer four standard colors and three custom colors, allowing it to match any interior image. With details such as double handrails, thin stainless tubes, and extremely thin treads, an innovative staircase kit has been created. 【Features】 ■ Designed with elegant, very light lines and strong steel ■ Composed of 12, 13, 14, or 15 treads (up to a height of 356 cm) and handrails ■ Available in three sizes: diameter 110 cm, 130 cm, and 150 cm *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Other fittings
• Spiral staircase
• Spatial Design

Classic steel now available in five colorful options! Beautifully finished stairs.

"SteelColor" features a beautiful finish with powder coating on a steel substrate. You can choose from five color variations: red, green, yellow, blue, and black. The delivery time is two weeks for production, with import from Italy. The transportation period is four weeks by air (cost borne by the customer) or over two months by original container ship (no cost). 【Specifications】 ○ Standard kit with 13 steps (including landing, 12 treads, handrails, and child posts) ○ Baked-on paint on a steel substrate ○ Indoor spiral staircase ○ Railing kit (optional) ideal for stair openings such as atriums For more details, please contact us or download the catalog. ★ For inquiries by phone, please call → TEL: 06-6584-8422 * When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• For indoor straight stairs

Design and functionality with a square spiral. A variety of color combinations available.

"CUBE" is a spiral staircase with a square silhouette. It is a combination of wood and steel. The steel is available in four colors (white, chrome, black, gray), and the wooden steps can be chosen in two colors (light, dark). You can add a handrail as an option to achieve a cohesive coordination. 【Features】 ■ Colors - Steel is available in four colors (white, chrome, black, gray) - Wooden steps are available in two colors (light, dark) ■ Space - Diameter of the flat surface is 118 or 138 cm (the staircase dimensions plus 5 cm will be the opening area) * The basic CUBE kit does not include handrails other than the landing as an option. * Import arrangements will be made after the order is received. * For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 * When calling, please mention "I saw it on Ipros." Business hours: Monday to Friday, from 10 AM to 5 PM.

• Wooden stairs

A resin spiral staircase that offers a design, texture, and color unique to Italy.

[As of December 2021] This product will be discontinued once stock runs out. We are currently not providing catalogs. If you are considering purchasing outlet products, please feel free to contact us. 'Techne' is a spiral staircase molded from special resin, featuring a design, texture, and color that are uniquely Italian. You can choose from two types of handrails: the simple vertical lattice handrail "linear" and the fabric-covered handrail "skin." [Features] ■ Available in three colors (red, white, green) ■ Choose from two types ■ Space diameter options: 123/143/163/170 cm ■ Standard kit height: 13 steps (H267–306 cm) ■ Adjustable with optional parts (206 cm–377 cm) *Specifications and prices are subject to change without notice. *For more details, please refer to the PDF materials or feel free to contact us. TEL: 06-6584-8422 *When calling, please mention "Ipros" as your reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Open staircase
• Spiral staircase
• Spatial Design

5 color variations! A staircase designed with functionality and style. [As of August 2023] This product has been discontinued.

WALL is made of 100% solid beach wood and is available in five colors: Havana Dark, Bleached, Taupe, Light, and Dark. We offer two types of steps: one for the top row fixed to the floor (with grooves to secure it to the floor and wall) (fig.1/2) and one for installation on the side wall (fig.1a/2sa). 【Features】 ○ Straight staircase design ○ Riser (R) and tread (G) can be freely set ○ Recommended riser height is 21cm, and recommended tread depth is 21cm or more (tread board size is 30cm) For more details, please contact us or download the catalog. ★ For inquiries by phone, please call here → TEL: 06-6584-8422 * When calling, please mention "Ipros" as your reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• tile
• Tile work

An article has been published about the case of introducing the expense reimbursement system "Rakuraku Seisan" at TSP Corporation. ~ In the case of TSP ~ Before the introduction, there were challenges such as dealing with the "paper" sent from various locations and the reliance on specific individuals for the tasks. After the introduction, the input and checking of FB data, which used to take 2 to 3 hours, can now be completed in just 5 minutes. Additionally, the mindset of the accounting department, which was previously reliant on manual entry, has changed. [Case Overview] ■ Challenges before introduction - Dealing with "paper" sent from various locations, reliance on specific individuals ■ Key points of introduction - A robust support system for setup and operation - Easy to start from a small scale both financially and functionally *For more details, please refer to the related links or feel free to contact us.

Engineering Meetup Report is Now Available! We have published the event report from the AI Startup Engineering Meetup, held at Google for Startups Campus Tokyo. The event brought together four AI startups, where engineers and engineering leaders with backgrounds at major companies shared insights on: ◆Product development ◆Career journeys ◆AI-related initiatives Kort Valuta was represented by our Chief Operating Officer and a Backend Engineer, who shared perspectives on product development in the fintech industry and the unique development environment of a startup. The networking session that followed sparked meaningful conversations on technology and career development, creating valuable new connections among participants. At Kort Valuta, we will continue to value collaboration with the technology community while striving to build even better products. Read the event report: https://prtimes.jp/main/html/rd/p/000000126.000076589.html We're hiring! If you're interested in building the future of fintech with us, check out our careers page: https://recruit.kortvaluta.com/?utm_source=WEB&utm_medium=sns&utm_campaign=ipros

We have published a white paper titled "Half a Year of Procrastination vs. Full Operation in 3 Months - Conditions for Companies That Should Use Initial Setup Support," aimed at companies considering the introduction and operation of attendance management systems. This document clearly explains the key points of initial setup that are prone to difficulties during implementation, as well as the differences between handling it in-house and utilizing specialized support. If you want to smoothly launch an attendance management system, please take a look.

From July 2026 until the end of September, we will hold a Summer Grand Appreciation Festival! High-pressure washers at great prices! Plan 1: A special set of SP60L/60new/60DX/60GE comes with a free Z swivel joint set! Plan 2: Customers who purchase a compressor will receive a new red hose (30m) for free! Plan 3: Washing hose [6M] available at a special price! A wide range of popular high-pressure washer series, cleaning accessories, painting machines, compressors, and other products are also available! Items listed can be purchased at great deals! Don't miss this opportunity!

(Japan) Termite Control Association Hachikusan FL No. 3359 (Japan) Termite Control Association Hachikusan MC No. 3511 The update from July 1, 2026, is now available.