マルナカ List of Products and Services

Wood that has been naturally dried to a moisture content of about 15-18% or artificially dried wood that has only been reduced to about 13% will shrink significantly when dried to a moisture content of 8%. Therefore, it is important to "teach the wood" to remember the over-dried state once. In our drying process, instead of rapidly drying at medium to high temperatures of 60-120°C, we use a method that slowly dries the wood at low temperatures of 40-50°C, where the moisture inside the material begins to escape. If we raise the temperature to medium or high ranges to speed up the drying process, the oil in the wood will evaporate along with the moisture, leading to cracks (especially internal cracks). [Three Reasons] ■ Once in an over-dried state, the board "remembers the drying" at that time. ■ Eliminates "moisture unevenness" in the board, allowing it to withstand sudden changes in humidity. ■ Dried at low temperatures, leaving "oil content intact," resulting in a clean dry to the core of the wood. *For more details, please refer to the PDF document or feel free to contact us.

• Solid wood flooring/indoor
• Cork, rubber flooring, sheet flooring/indoor
• Flooring materials by material (bamboo, cedar, cherry, paulownia, etc.)

We select well-maintained logs suitable for interior materials, focusing on the local Kii Mountain area. The carefully selected logs are processed one by one, checking their condition before being sent to the sawmill, where they are cut in a manner suitable for creating interior materials. We combine natural drying and artificial drying to adjust the moisture content according to the intended use. Additionally, the finished products undergo final inspection and packaging, and we can accommodate direct shipping to customers' warehouses, work sites, or construction sites. 【Sawmilling / Drying】 ■ Sawmilling - We carefully examine the fine grain, color, condition, and logging location of the logs before purchasing them from the log market. ■ Drying - We continuously monitor the condition of the wood during the drying process. - After drying, we allow a designated acclimatization period to adjust the wood to the outside environment. *For more details, please refer to the PDF materials or feel free to contact us.

• Solid wood flooring/indoor
• Cork, rubber flooring, sheet flooring/indoor
• Flooring materials by material (bamboo, cedar, cherry, paulownia, etc.)

We would like to introduce our indoor dog flooring "Tsuneyoshi," which we handle. Made from domestic cedar, it uses only the parts that dogs love. While it is prone to scratches, it allows dogs to firmly grip with their paws and nails. Additionally, by changing the milling method, we have cut it using only the straight grain known as "masame," which enhances the slip resistance. 【Features】 ■ Uses only the parts that dogs love from domestic cedar ■ Allows dogs to firmly grip with their paws and nails ■ Aligns the boards in a way that enhances grip and reduces slipping by eliminating knots ■ Unfinished, intentionally leaving the wood's texture intact without any coating *For more details, please refer to the related links or feel free to contact us.

• Solid wood flooring/indoor
• Cork, rubber flooring, sheet flooring/indoor
• Flooring materials by material (bamboo, cedar, cherry, paulownia, etc.)

Marunaka's "okumoku" is a solid cedar flooring board that allows you to easily enjoy the warmth of natural wood simply by placing it on top of your usual composite floor long. When you lay natural wood over cold flooring, it becomes warm, and you can feel the pleasantness when you touch it with your skin. Of course, it can also be used outdoors, such as in the garden. The back is made of rubber sheet, which prevents damage to the floor, allows for easy replacement, and makes arrangement simple. By combining colors, you can also enjoy stylish interior design. 【Features】 ■ Natural domestic cedar ■ The raised grain finish is scratch-resistant and pet-friendly *For more details, please download the PDF or feel free to contact us.

• Solid wood flooring/indoor and outdoor
• Floor and equipment composite system
• Fine wood

Marunaka's "ECO Thermotech S15" is a floor heating-compatible flooring made entirely from 100% natural materials, allowing you to feel the warmth and softness of cedar. Cedar is a soft wood, but the unevenness created by the "uzukuri" technique enhances the pleasant sensation when touched, increasing health benefits and safety. Selected based on "80-year-old cedar" carefully cultivated in a forestry area that has been maintained since the Edo period, only the luxurious red heartwood is cut and crafted with care. 【Features】 ■ Excellent thermal insulation ■ Outstanding durability ■ Reliable quality *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

• Flooring materials by material (bamboo, cedar, cherry, paulownia, etc.)
• Flooring materials compatible with underfloor heating
• Construction materials

"Marunaka's flooring" is a solid cedar interior material suitable for creating a comfortable and healthy living environment. Cedar is a "human-friendly" material with characteristics such as humidity control, air purification, warmth, and softness. Furthermore, cedar is not only far more energy-efficient than iron or concrete, but using cedar itself helps protect forests. Marunaka greatly enhances the potential of cedar, a material essential to Japan's traditional culture and industry, through the latest technology and unique know-how. [Three Commitments to Quality] ○ [Selection] Detailed selection to meet various needs ○ [Drying] Unique drying technology that expands the possibilities of solid wood ○ [Processing] Reliable finishing through high processing precision and quality control For more details, please contact us or download the catalog.

• Flooring materials by material (bamboo, cedar, cherry, paulownia, etc.)
• Interior construction
• Other woodworking