wedi Building Board Construct – Flexible XPS board for long, flowing curves
The wedi Building Board Construct longitudinal version is specially designed for creating large, smooth curves and long rounded walls. Thanks to the deep grooves along the long side, the board bends effortlessly without losing strength. Lightweight, 100% waterproof and ready to tile: the perfect solution for wellness areas, luxury shower spaces, organic designs and bespoke constructions.
➕ Flexible along the longitudinal side – ideal for long curved lines and large-radius shapes
➕ 100% waterproof XPS core with high bending strength
➕ Ready to tile and easy to process
➕ Lightweight, strong and dimensionally stable
➕ Available in 20, 30 and 50 mm thickness
➕ Perfect for wellness projects, organic walls and luxury bespoke designs
Technical specifications
- Material: extruded polystyrene (XPS), closed-cell structure
- Coating: double-sided cement coating, glass fibre reinforced
- Dimensions: 2500 x 600 mm
- Thicknesses: 20 mm, 30 mm, 50 mm
- Bending radius 20 mm: outer diameter approx. 363 mm (approx. 0.5 board per full circle)
- Bending radius 30 mm: outer diameter approx. 538 mm (approx. 0.4 board per full circle)
- Bending radius 50 mm: outer diameter approx. 890 mm (approx. 0.2 board per full circle)
- Water absorption: 0%
- Thermal conductivity: approx. 0.036 W/mK
Applications of the Construct longitudinal board
The longitudinal version is ideal for long organic lines, large curved shower walls, wellness benches, sculptural walls, rounded furniture elements and any bespoke design where smooth flowing shapes are essential.
wedi Building Board Construct – the flexible solution for long, flowing shapes in bathrooms and wellness areas
The wedi Building Board Construct longitudinal version is designed for applications where long curves, rounded walls and smooth organic lines are required. Thanks to the deep grooves along the long side, the board bends effortlessly with a wide radius, without losing stability or waterproof performance. This makes it perfect for luxury bathrooms, wellness spaces, shower zones and bespoke furniture constructions.
Ideal for generous curves and long sweeping shapes
While the transverse version is suitable for compact curves, the longitudinal variant excels in larger radii. The board can be bent along its entire length, creating a continuous flowing line – ideal for elegant designs and sculptural forms.
The right thickness for the desired curve
Each thickness offers a different bending characteristic, allowing you to choose the ideal board for your design:
- 20 mm – flexible, suitable for medium-radius shapes
- 30 mm – optimal balance between rigidity and flexibility
- 50 mm – gentle, wide curves for large rounded walls
Advantages of the Construct longitudinal board
➕ Wide bending radius thanks to grooves along the longitudinal side
➕ Create long curved lines and generous shapes
➕ 100% waterproof XPS core, dimensionally stable
➕ Ready to tile and easy to install
➕ Lightweight, strong and thermally insulating
➕ Ideal for wellness designs, sculptural elements and bespoke solutions
Fast, clean installation with wedi Tools
The board is easy to cut, shape and bond. Thanks to its XPS core, it is very lightweight, simple to handle and can be bent without special tools. wedi 610 provides a strong, waterproof bond, while rosettes and plugs offer additional stability when required.
- wedi 610 adhesive & sealant – for strong, waterproof connections
- wedi Joint Reinforcement Tape – ideal for transitions to other materials
- wedi Sealing Tape – for fully waterproof joints
- wedi Rosettes & Plugs – for mechanical fixing where necessary
Applications of the Construct longitudinal board
The longitudinal variant is perfect for:
- large curved shower walls and partitions
- wellness benches and organic seating structures
- sculptural shapes and flowing wall designs
- rounded elements in bathroom furniture and cladding
- cladding of curved pipes and large columns
Specifications
| Manufacturer | wedi |
| Product name | wedi Building Board Construct – longitudinal |
| Type | Flexible XPS board with longitudinal grooves |
| Dimensions | 2500 x 600 mm |
| Thicknesses | 20 mm, 30 mm, 50 mm |
| Bending radius | 20 mm: Ø 363 mm – 30 mm: Ø 538 mm – 50 mm: Ø 890 mm |
| Material | XPS core with glass fibre reinforced cement coating |
| Water absorption | 0% – fully waterproof |
| Thermal conductivity | approx. 0.036 W/mK |
| Suitable for | tiles, cement-based plaster, natural stone |
Part of the complete wedi system
The longitudinal Construct board complements the full wedi building system, alongside the standard, XL, XXL and transverse versions. Combined with wedi Fundo shower trays, wedi Top design surfaces, niches and benches, it creates a fully waterproof, creative and technically reliable solution for any bathroom or wellness project.
