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Our story - Build fast and fully watertight with wedi building boards and system elements. Experience the convenience and 100% waterproof reliability of wedi boards.

wedi Fundo Flex Slope Board - Without Rebate

Order before 12pm: 1 working day | Delivery date will be arranged

- Size 1,040x1,200mm - Thickness 26mm
Article number: 073737023
€320.95 per piece

Excl. VAT €265.25

piece
- Size 1,040x1,600mm - Thickness 26mm
Article number: 073737033
€366.95 per piece

Excl. VAT €303.26

piece
- Size 1,640x1,200mm - Thickness 35mm
Article number: 073737025
€398.95 per piece

Excl. VAT €329.71

piece

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wedi Fundo Flex Sloped Panel Without Rebate – flexible slope solution for shower drains

✔️ Free drain positioning ✔️ Low build-up height ✔️ Clean design ✔️ 100% waterproof ✔️ Suitable for timber and concrete floors

The wedi Fundo Flex Sloped Panel without rebate is part of the modular Fundo Flex system and provides the foundation for a modern walk-in shower with a shower drain. This sloped panel offers maximum flexibility in determining the drain position and can be easily adapted to almost any bathroom layout. Thanks to its low build-up height and waterproof XPS construction, it is ideal for both new-build projects and renovations.

When do you use this sloped panel?

This sloped panel is available in different thicknesses and is used in combination with the wedi Fundo Flex channel element. The version without rebate is designed for installation within the floor structure, allowing the shower floor to be fully integrated into the construction. Use the sloped panel with rebate when installing on top of the floor structure.

The wedi Fundo Flex Sloped Panel without rebate

  • Brand: wedi
  • System: Fundo Flex
  • Type: Sloped panel without rebate – for in-floor installation
  • (Use the sloped panel with rebate for installation on top of the floor structure)
  • Size option 1: 1,040 × 1,200 × 26 mm (L × W × T)
  • Size option 2: 1,040 × 1,600 × 26 mm (L × W × T)
  • Size option 3: 1,640 × 1,200 × 35 mm (L × W × T)
  • Thinnest point of the panel: approx. 10 mm
  • Key feature: Complete freedom in determining the drain position

Complete the wedi Fundo Flex system

  • wedi Fundo Flex channel element (required)
  • wedi Fundo Wave drain DN 50 or DN 40 (required)
  • wedi Fundo shower channel 1.0 stainless steel (required)
  • wedi medium-bed mortar for bonding (required)
  • wedi underlay element for Wave drain (optional)
  • Additional Fundo Flex sloped panels (optional, depending on layout)
  • wedi sealing set and slope profiles (optional)

wedi Fundo Flex – flexible system solution for shower floors with drain

The wedi Fundo Flex is a modular shower floor system that offers maximum design freedom for walk-in showers with a drain. Unlike standard shower floors with a fixed drain position, the Fundo Flex allows the drain to be positioned exactly where the design or existing situation requires it. This makes the system particularly suitable for renovations, bespoke solutions and bathrooms with limited build-up height.

Maximum freedom in drain positioning

With many shower floors, the drain position is fixed, often leading to unwanted adjustments to the floor structure or pipework. The wedi Fundo Flex removes this limitation. Thanks to its modular design, you can position the drain against the wall, away from the wall or even centrally within the shower area. This flexibility ensures seamless integration into modern bathroom designs and complex technical conditions.

  • Free positioning of the shower drain
  • Ideal for renovations and custom-made projects
  • Suitable for timber and concrete floor constructions
  • Low build-up height achievable

wedi Fundo Flex sloped panel without rebate

The wedi Fundo Flex sloped panel without rebate forms the basis for correct water drainage towards the channel element. This version is designed for installation within the floor construction, allowing the shower floor to be fully recessed into the structure. The factory-made slope ensures reliable water drainage while maintaining a flush and clean finish.

  • Sloped panel without rebate for in-floor installation
  • Factory-made slope for reliable drainage
  • Can be cut to size while maintaining the slope
  • Part of the complete Fundo Flex system

100% waterproof – part of the wedi system

Like all wedi Fundo solutions, the Fundo Flex is made from the proven XPS core with a closed-cell structure. This material is completely waterproof and does not absorb moisture. When combined with wedi sealing systems, it creates a durable, safe and compliant shower solution without wet construction processes or long drying times.

Required components for a complete Fundo Flex shower solution

The Fundo Flex is a modular system built up from multiple components. Depending on the installation situation, the following items are required:

  • wedi Fundo Flex channel element (required)
  • wedi Fundo Flex sloped panel without rebate (this product)
  • wedi Fundo Wave drain DN 50 or DN 40 (required)
  • wedi Fundo shower channel 1.0 stainless steel (required)
  • wedi medium-bed mortar for bonding (required)
  • wedi sealing set and slope profiles (optional)
  • wedi underlay element for Wave drain (optional)

Specifications

Manufacturer wedi
Product name wedi Fundo Flex sloped panel without rebate
System wedi Fundo Flex
Type Sloped panel for shower floors with drain
Application In-floor installation
Material XPS rigid foam with reinforced mortar coating
Thinnest point Approx. 10 mm
Available sizes 1,040 × 1,200 × 26 mm
1,040 × 1,600 × 26 mm
1,640 × 1,200 × 35 mm
Pre-sloped Yes
Waterproof Yes – part of the wedi system

Detailed technical drawings of the wedi Fundo Flex sloped panel are available on request.


Part of the complete wedi system

The wedi Fundo Flex sloped panel without rebate forms part of a fully integrated, flexible and technically reliable building system for modern, waterproof walk-in showers, together with the channel element, Wave drain, sealing systems and optional wedi Fundo Top.

What is the wedi Fundo Flex?

The wedi Fundo Flex is a modular shower floor system that offers maximum freedom when positioning the shower drain. Unlike standard shower trays with a fixed drain location, the Fundo Flex allows you to determine the drain position yourself. This makes the system particularly suitable for renovations, bespoke solutions and bathrooms with complex floor constructions.

Why choose the Fundo Flex instead of a standard Fundo shower tray?

With standard Fundo shower trays, the drain position is fixed. The wedi Fundo Flex removes this limitation by allowing free positioning of the shower channel. This means existing pipework or floor joists do not need to be altered, and the bathroom design can remain the leading factor. The result is greater technical flexibility and design freedom.

Can the wedi Fundo Flex be used on timber floors?

Yes, the wedi Fundo Flex is suitable for both timber and concrete floor constructions. Thanks to its lightweight, waterproof XPS material and low system build-up height, it is particularly well suited for timber joist floors and renovation projects where structural load and installation height are critical factors.

What is the installation height of the wedi Fundo Flex?

The installation height of the Fundo Flex system is low and depends on the selected components and installation situation. Factors such as the type of slope panels, the chosen Wave drain (DN-40 or DN-50) and the use of a support element all play a role. This flexibility allows the system to be used even where installation height is limited.

Which components are required for a complete Fundo Flex installation?

The wedi Fundo Flex is a modular system consisting of several components. Depending on the installation requirements, the following elements are needed:

  • wedi Fundo Flex channel element – forms the basis for free positioning of the shower channel
  • wedi Fundo Flex slope panels – provide a correct and reliable slope towards the drain
  • wedi Fundo Flex stainless steel shower channel 1.0 – cut-to-length design channel for flexible placement
  • wedi Wave drain DN-50 or DN-40 – low-maintenance drain with integrated trap
  • wedi support element for the Wave drain – ensures stable and precise installation without using cement
  • wedi medium-bed mortar – for bonding the system components
  • wedi sealing set and slope profiles (optional)

What is the advantage of the wedi support element for the Wave drain?

The wedi support element ensures stable and accurate positioning of the Wave drain. This eliminates the need to build up the drain with cement or mortar, making installation faster and more straightforward. The support element increases installation reliability and contributes to a technically sound and durable drainage solution.

How does the wedi Fundo Flex differ from other walk-in shower systems?

The unique combination of freely positionable drainage, low installation height and a fully waterproof, tested system sets the Fundo Flex apart. It offers maximum design freedom without compromising on technical reliability or waterproofing performance.

Should the wedi Fundo Flex be combined with wedi building boards?

Combining the Fundo Flex with wedi building boards is not mandatory, but it is highly recommended. Wedi building boards provide a stable, waterproof and well-insulated substrate and allow a complete, integrated wedi system to be used throughout the entire shower area.

Is the wedi Fundo Flex easy to maintain?

Yes, the shower channel features a removable cover with an integrated hair catcher, making cleaning easy. The Wave drain is designed for optimal flow performance and ease of maintenance and includes an integrated odour trap.

For which situations is the wedi Fundo Flex most suitable?

The Fundo Flex is ideal for:

  • Renovation projects where existing pipework or floor joists cannot be relocated
  • Bathrooms with limited installation height
  • Designs featuring long or freely positioned shower channels
  • Timber and concrete floors requiring a lightweight, waterproof solution

Where can I get advice on the wedi Fundo Flex?

Each Fundo Flex product page lists the compatible accessories and system components. If you need advice on the correct system build-up for your project, our specialists are happy to assist you.

Discover the wedi Fundo Flex system through our short product videos. Learn more about the Wave Drain, Shower Channel, Sloping Board, Channel Element and other key components for a fast, reliable and waterproof walk-in shower installation.



Description

wedi Fundo Flex Sloped Panel Without Rebate – flexible slope solution for shower drains

✔️ Free drain positioning ✔️ Low build-up height ✔️ Clean design ✔️ 100% waterproof ✔️ Suitable for timber and concrete floors

The wedi Fundo Flex Sloped Panel without rebate is part of the modular Fundo Flex system and provides the foundation for a modern walk-in shower with a shower drain. This sloped panel offers maximum flexibility in determining the drain position and can be easily adapted to almost any bathroom layout. Thanks to its low build-up height and waterproof XPS construction, it is ideal for both new-build projects and renovations.

When do you use this sloped panel?

This sloped panel is available in different thicknesses and is used in combination with the wedi Fundo Flex channel element. The version without rebate is designed for installation within the floor structure, allowing the shower floor to be fully integrated into the construction. Use the sloped panel with rebate when installing on top of the floor structure.

The wedi Fundo Flex Sloped Panel without rebate

  • Brand: wedi
  • System: Fundo Flex
  • Type: Sloped panel without rebate – for in-floor installation
  • (Use the sloped panel with rebate for installation on top of the floor structure)
  • Size option 1: 1,040 × 1,200 × 26 mm (L × W × T)
  • Size option 2: 1,040 × 1,600 × 26 mm (L × W × T)
  • Size option 3: 1,640 × 1,200 × 35 mm (L × W × T)
  • Thinnest point of the panel: approx. 10 mm
  • Key feature: Complete freedom in determining the drain position

Complete the wedi Fundo Flex system

  • wedi Fundo Flex channel element (required)
  • wedi Fundo Wave drain DN 50 or DN 40 (required)
  • wedi Fundo shower channel 1.0 stainless steel (required)
  • wedi medium-bed mortar for bonding (required)
  • wedi underlay element for Wave drain (optional)
  • Additional Fundo Flex sloped panels (optional, depending on layout)
  • wedi sealing set and slope profiles (optional)
More info

wedi Fundo Flex – flexible system solution for shower floors with drain

The wedi Fundo Flex is a modular shower floor system that offers maximum design freedom for walk-in showers with a drain. Unlike standard shower floors with a fixed drain position, the Fundo Flex allows the drain to be positioned exactly where the design or existing situation requires it. This makes the system particularly suitable for renovations, bespoke solutions and bathrooms with limited build-up height.

Maximum freedom in drain positioning

With many shower floors, the drain position is fixed, often leading to unwanted adjustments to the floor structure or pipework. The wedi Fundo Flex removes this limitation. Thanks to its modular design, you can position the drain against the wall, away from the wall or even centrally within the shower area. This flexibility ensures seamless integration into modern bathroom designs and complex technical conditions.

  • Free positioning of the shower drain
  • Ideal for renovations and custom-made projects
  • Suitable for timber and concrete floor constructions
  • Low build-up height achievable

wedi Fundo Flex sloped panel without rebate

The wedi Fundo Flex sloped panel without rebate forms the basis for correct water drainage towards the channel element. This version is designed for installation within the floor construction, allowing the shower floor to be fully recessed into the structure. The factory-made slope ensures reliable water drainage while maintaining a flush and clean finish.

  • Sloped panel without rebate for in-floor installation
  • Factory-made slope for reliable drainage
  • Can be cut to size while maintaining the slope
  • Part of the complete Fundo Flex system

100% waterproof – part of the wedi system

Like all wedi Fundo solutions, the Fundo Flex is made from the proven XPS core with a closed-cell structure. This material is completely waterproof and does not absorb moisture. When combined with wedi sealing systems, it creates a durable, safe and compliant shower solution without wet construction processes or long drying times.

Required components for a complete Fundo Flex shower solution

The Fundo Flex is a modular system built up from multiple components. Depending on the installation situation, the following items are required:

  • wedi Fundo Flex channel element (required)
  • wedi Fundo Flex sloped panel without rebate (this product)
  • wedi Fundo Wave drain DN 50 or DN 40 (required)
  • wedi Fundo shower channel 1.0 stainless steel (required)
  • wedi medium-bed mortar for bonding (required)
  • wedi sealing set and slope profiles (optional)
  • wedi underlay element for Wave drain (optional)

Specifications

Manufacturer wedi
Product name wedi Fundo Flex sloped panel without rebate
System wedi Fundo Flex
Type Sloped panel for shower floors with drain
Application In-floor installation
Material XPS rigid foam with reinforced mortar coating
Thinnest point Approx. 10 mm
Available sizes 1,040 × 1,200 × 26 mm
1,040 × 1,600 × 26 mm
1,640 × 1,200 × 35 mm
Pre-sloped Yes
Waterproof Yes – part of the wedi system

Detailed technical drawings of the wedi Fundo Flex sloped panel are available on request.


Part of the complete wedi system

The wedi Fundo Flex sloped panel without rebate forms part of a fully integrated, flexible and technically reliable building system for modern, waterproof walk-in showers, together with the channel element, Wave drain, sealing systems and optional wedi Fundo Top.

FAQ

What is the wedi Fundo Flex?

The wedi Fundo Flex is a modular shower floor system that offers maximum freedom when positioning the shower drain. Unlike standard shower trays with a fixed drain location, the Fundo Flex allows you to determine the drain position yourself. This makes the system particularly suitable for renovations, bespoke solutions and bathrooms with complex floor constructions.

Why choose the Fundo Flex instead of a standard Fundo shower tray?

With standard Fundo shower trays, the drain position is fixed. The wedi Fundo Flex removes this limitation by allowing free positioning of the shower channel. This means existing pipework or floor joists do not need to be altered, and the bathroom design can remain the leading factor. The result is greater technical flexibility and design freedom.

Can the wedi Fundo Flex be used on timber floors?

Yes, the wedi Fundo Flex is suitable for both timber and concrete floor constructions. Thanks to its lightweight, waterproof XPS material and low system build-up height, it is particularly well suited for timber joist floors and renovation projects where structural load and installation height are critical factors.

What is the installation height of the wedi Fundo Flex?

The installation height of the Fundo Flex system is low and depends on the selected components and installation situation. Factors such as the type of slope panels, the chosen Wave drain (DN-40 or DN-50) and the use of a support element all play a role. This flexibility allows the system to be used even where installation height is limited.

Which components are required for a complete Fundo Flex installation?

The wedi Fundo Flex is a modular system consisting of several components. Depending on the installation requirements, the following elements are needed:

  • wedi Fundo Flex channel element – forms the basis for free positioning of the shower channel
  • wedi Fundo Flex slope panels – provide a correct and reliable slope towards the drain
  • wedi Fundo Flex stainless steel shower channel 1.0 – cut-to-length design channel for flexible placement
  • wedi Wave drain DN-50 or DN-40 – low-maintenance drain with integrated trap
  • wedi support element for the Wave drain – ensures stable and precise installation without using cement
  • wedi medium-bed mortar – for bonding the system components
  • wedi sealing set and slope profiles (optional)

What is the advantage of the wedi support element for the Wave drain?

The wedi support element ensures stable and accurate positioning of the Wave drain. This eliminates the need to build up the drain with cement or mortar, making installation faster and more straightforward. The support element increases installation reliability and contributes to a technically sound and durable drainage solution.

How does the wedi Fundo Flex differ from other walk-in shower systems?

The unique combination of freely positionable drainage, low installation height and a fully waterproof, tested system sets the Fundo Flex apart. It offers maximum design freedom without compromising on technical reliability or waterproofing performance.

Should the wedi Fundo Flex be combined with wedi building boards?

Combining the Fundo Flex with wedi building boards is not mandatory, but it is highly recommended. Wedi building boards provide a stable, waterproof and well-insulated substrate and allow a complete, integrated wedi system to be used throughout the entire shower area.

Is the wedi Fundo Flex easy to maintain?

Yes, the shower channel features a removable cover with an integrated hair catcher, making cleaning easy. The Wave drain is designed for optimal flow performance and ease of maintenance and includes an integrated odour trap.

For which situations is the wedi Fundo Flex most suitable?

The Fundo Flex is ideal for:

  • Renovation projects where existing pipework or floor joists cannot be relocated
  • Bathrooms with limited installation height
  • Designs featuring long or freely positioned shower channels
  • Timber and concrete floors requiring a lightweight, waterproof solution

Where can I get advice on the wedi Fundo Flex?

Each Fundo Flex product page lists the compatible accessories and system components. If you need advice on the correct system build-up for your project, our specialists are happy to assist you.

Video's
Discover the wedi Fundo Flex system through our short product videos. Learn more about the Wave Drain, Shower Channel, Sloping Board, Channel Element and other key components for a fast, reliable and waterproof walk-in shower installation.
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  • Personal service you can rely on
  • Largest wedi range in the Netherlands
  • Direct access to a wedi expert
  • More than 15 years online

Justwedi.nl – The specialist in 100% waterproof bathrooms

Welcome to Justwedi.nl – the go-to destination for anyone building or renovating a bathroom, sauna, spa, swimming pool, or any other wet area with the premium quality of wedi.
Whether you’re a professional installer or a hands-on DIYer, you can easily order all original wedi materials online. From waterproof construction boards and Fundo shower systems to XPS elements, design components, and smart installation solutions – you’ll find it all here.

We believe that every wellness space deserves the perfect foundation: sleek, stylish, and fully waterproof. That’s why we exclusively offer the best from wedi – Europe’s number one in high-quality building systems for wet rooms.

Building or renovating a bathroom? The complete wedi range – professional, durable & premium quality

A bathroom renovation requires time, preparation, and the right materials. We make the process as smooth as possible:

• Full range of wedi products always in stock
• Competitive pricing
• Expert guidance from true specialists
• Showroom located in Vught (NL)
• Fast home delivery

At Justwedi.nl, you can count on premium products and professional support. Our experts are ready to think along with you, offer clear advice, and help you make the right choices for your project.

Why choose Justwedi.nl?

Here’s why customers trust Justwedi.nl:

✓ Build 100% waterproof with genuine wedi materials
✓ Lightweight construction boards for quick and easy installation
✓ Tile directly on top – no priming required
✓ Works with just one adhesive: wedi 610
✓ Perfectly compatible with underfloor heating
✓ Extensive product range: boards, Fundo shower systems, I-board and wedi Tools
✓ Excellent insulation properties for comfort and energy savings
✓ Suitable for both residential and professional applications
✓ Your own dedicated contact person – short lines and personalised support
✓ Service is our top priority – we genuinely think along with you
✓ Fast and reliable home delivery
✓ Reachable on weekdays from 09:00 to 17:30
✓ Secure shopping with Trusted Shops guarantee
✓ Clear communication and reliability – a deal is a deal

Explore our range & get inspired

Browse our online store and discover what’s possible with wedi.
Have questions or want to discuss your bathroom project? We’re here to help and would love to get to know you.

Justwedi.nl – your partner in waterproof building

About Justwedi

The online shop for your complete wedi bathroom. Ordering is quick and easy from the comfort of your home. With every product you will find all the necessary information, manuals, videos and an FAQ. Discover the products that made wedi what it is today, such as the wedi building board, the iBoard for toilets and the Bathboard. The design Top elements are a high-quality alternative to tiles, offering greater convenience and a grout-free finish. Smart construction, design, warranty and wellness – you’ll find it all at Justwedi.nl.

Safe and Easy

All wedi products can be ordered with just a few clicks. You benefit from competitive prices, and most wedi products are delivered to your home the next day. With the Trusted Shops guarantee, you can be sure of safe ordering and secure payment.

Combination discount

Combine from the extensive wedi range, including shower trays, shower walls, toilets, baths, design elements and even wellness solutions, and benefit from a 3% discount. Automatically applied in the shopping cart for orders from €1,500. Our tips: the wedi Sanwell ready-made niche, Sanoasa shower benches, Fundo shower trays, XXL building boards and Top Wall. Create the bathroom you want with a touch of wellness!