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  1. Home
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  6. Sheet-type waterproof board (water stop board, flood prevention board, waterproof door) 'JP-WP-ST'

Sheet-type waterproof board (water stop board, flood prevention board, waterproof door) 'JP-WP-ST'

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last updated:Jul 29, 2026

日本ピット 大分本社・東京・大阪・福岡
日本ピット 大分本社・東京・大阪・福岡
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No storage location needed! A sheet-type waterproof board that can be set up immediately in an emergency.

Sheet-type waterproof boards are stored in a casing, eliminating the need for storage space! They can be easily installed in a short time. They are also recommended for wide parking lot entrances. Our company provides a consistent response from development to design, manufacturing, construction, and maintenance, so even first-time customers can use them with confidence.

    Drainage material
防水板-シート.png

Sheet-type waterproof board (water stop board, flood prevention board, waterproof door) 'JP-WP-ST'

防水板-シート.png
防水板-シート.png
  • Related Link - https://nihon-pit.co.jp/

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basic information

【Features】 ■Material: Special synthetic rubber sheet ■Frame inner dimensions: 900mm to 12,000mm (installation of middle columns required) ■Water immersion height: 300mm to 1,200mm ■Operation method: Manual ■Installation time: From 3 minutes ■Number of installers: From 1 person ■Side frame installation type: Embedded type / Exposed type ■Product storage location: Not required (sheet is stored within the casing) - There are many successful applications in large-scale projects. - Since it is installed by the manufacturer, even first-time users can feel secure! *For more details, please refer to the PDF document or feel free to contact us.

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Waterproof board / moisture-proof board / water stop board

catalog(4)

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Prepare for water disasters! A guidebook on types of waterproof boards and how to choose them - for selecting waterproof boards without making mistakes.

Prepare for water disasters! A guidebook on types of waterproof boards and how to choose them - for selecting waterproof boards without making mistakes.

TECHNICAL
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Notice of Waterproof Board Inspection Service

Notice of Waterproof Board Inspection Service

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JP Waterproof Board Comprehensive Catalog (Waterproof Boards/Water Stop Boards/Flood Prevention Boards)

JP Waterproof Board Comprehensive Catalog (Waterproof Boards/Water Stop Boards/Flood Prevention Boards)

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How to introduce waterproof boards

How to introduce waterproof boards

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News about this product(2)

[Free Catalog Download] Information about the waterproof board catalog

  • Catalog news

In April 2025, the waterproof board catalog vol.2 of Japan Pit was published.

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A guidebook on the types and selection of waterproof boards has been created.

  • Catalog news

A guidebook on the types of waterproof boards and how to choose them has been created to ensure you select a waterproof board that won't fail. It provides a detailed explanation of the current state of disaster prevention in companies, the types of water disasters and their countermeasures, as well as the types of waterproof boards and their characteristics!

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Company information

日本ピット

日本ピット 大分本社・東京・大阪・福岡

Building materials, supplies and fixtures manufacturers

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Nihon Pit was established in 1968 as Japan's first independent pit specialty manufacturer, standardizing and mass-producing traditional manhole covers. Since then, we have developed many products, including general wiring and drainage pits for construction, trench ducts and OA floors for office automation, and drainage troughs, among others. Moving forward, we will continue to pursue a wide variety of specialized pits (manhole covers) that transcend the boundaries of architecture, civil engineering, and facilities, always aiming to create products that are ahead of their time.

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