Choosing a 90 cm linear drain is a key decision when designing a modern shower area. At Onninen, we offer comprehensive solutions that combine functionality with aesthetics, providing professional installers with the confidence of proper selection. Our years of experience show that the right choice of drain dimensions directly affects user comfort and installation safety.
As a market leader in installation, we know that a 90 cm shower cabin requires precise selection of a linear drain. Our experience indicates that incorrect selection can lead to water drainage issues, ultimately resulting in bathroom flooding. Therefore, in this guide, we present proven principles that our specialists apply.
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Why is an 80 cm linear drain ideal for a 90 cm cabin?
The fundamental principle of selecting a linear drain is based on the rule of a 10-20 cm difference relative to the width of the cabin. In Onninen's assortment, you will find linear drains in various lengths, but for a 90 cm cabin, we recommend the 80 cm model as the optimal solution.
This 10 cm difference ensures proper slope execution of the floor tiles. When the drain is too long in relation to the cabin, it is difficult to achieve the appropriate floor slope, which can result in water pooling on the tiles. Our implementations across Poland show that an 80 cm drain in a 90 cm cabin guarantees effective water drainage while maintaining aesthetics.
Alternative lengths for a 90 cm cabin
- 70 cm drain - a safe option for smaller spaces
- 75 cm drain - a compromise between efficiency and ease of installation
- 80 cm drain - the optimal solution, most commonly chosen
Key technical parameters of the linear drain
Onninen offers drains with various technical specifications. Our team of experts recommends paying attention to the following parameters:
Siphon capacity
The minimum capacity should be 30-42 l/min for standard use. Products from renowned brands in our assortment, such as Geberit CleanLine or ACO ShowerDrain drains, offer capacities of up to 90 l/min, which is suitable for intensive use with high-flow showerheads.
Installation height
Standard drains require a construction height of 8-12 cm. In our offer, you will also find "Low" models with a height of only 7 cm, ideal for modernizing existing bathrooms. Some systems, like Kessel Linearis Compact, require only 8 cm of depth.
| Type of drain | Installation height | Capacity | Application |
|---|---|---|---|
| Standard | 9.5 cm | 36-42 l/min | New buildings |
| Low Profile | 7 cm | 30-36 l/min | Modernization |
| Slim | 3.5 cm | 24-30 l/min | Limited space |
Types of covers and finishes available at Onninen
The aesthetics of the linear drain are crucial in modern arrangements. In our offer, there are various finish options that will match any bathroom style:
Tile-covered cover
The most discreet solution, where the top part of the grate can be covered with the same tile as the floor. The visual effect is almost imperceptible, which interior designers working with Onninen appreciate.
Steel finishes
- Polished stainless steel - classic, elegant finish
- Brushed steel - less prone to visible dirt
- Black finish - a trendy accent in industrial arrangements
- Gold finish - a luxurious addition to exclusive bathrooms
Installation of the linear drain - practical tips
As experienced suppliers of installation solutions, we emphasize that proper installation is the foundation for long-lasting and trouble-free operation of the drain. Our years of experience show
the most common mistakes and ways to avoid them.
Preparing the substrate
The drain must be installed before laying the tiles, ensuring a slope of at least 2% towards the channel. In practice, this means a height difference of about 12 mm over a distance of 60 cm from the drain.
Sealing the shower area
All drains in our offer are equipped with sealing flanges and butyl tapes. Special attention should be paid to sealing corners - the areas most prone to leaks.
Wall drain as an alternative
When the ceiling thickness prevents the installation of a floor drain, we recommend considering a wall drain. In Onninen's assortment, there are systems that are installed in the wall just above the floor level, retaining all the advantages of linear drainage.
This solution is particularly effective in modernizing old buildings, where there is no possibility of significantly raising the floor level. The wall drain only requires making a groove in the wall and connecting to the sewage system.
Frequently asked questions
What linear drain for a 90 cm shower cabin?
For a 90 cm cabin, it is best to choose an 80 cm linear drain. This 10 cm difference ensures proper execution of floor slopes and effective water drainage. Onninen also offers 70-75 cm drains as alternative solutions.
Where to install the linear drain in a 90 cm cabin?
The optimal location is along the longest wall of the cabin, 10 cm from the edge. This location facilitates the execution of tile slopes and ensures even water drainage from the entire shower area.
What capacity should the channel have for a 90 cm cabin?
The minimum capacity is 30-36 liters per minute. For cabins with high-flow showerheads, we recommend drains with a capacity of 42-50 l/min. Products available at Onninen meet these requirements with a safety margin.
How much does it cost to install a linear drain?
The installation cost depends on the complexity of the installation and the type of substrate. It includes preparing the excavation, connecting to the sewage system, sealing, and finishing. In new buildings, installation is simpler than in modernizing existing bathrooms.
How to maintain a linear drain?
Regular cleaning once a month is essential. Simply remove the grate and rinse the channel and siphon with warm water. Modern drains from our offer have removable siphons, which greatly facilitate maintenance.
Is a linear drain better than a shower tray?
A linear drain provides greater design freedom and easier access. It eliminates architectural barriers, facilitates cleaning, and gives the bathroom a modern character. At the same time, it requires precise installation and appropriate ceiling thickness.
What materials are best for a linear drain?
Stainless steel AISI 304 or 316 guarantees the highest durability. The body made of high-quality ABS ensures resistance to bathroom chemicals. Products in Onninen's offer meet the highest material quality standards.
Professional solutions for demanding projects
At Onninen, we understand that every project is a unique challenge. Our rich offer of linear drains includes solutions for the most demanding implementations - from standard residential cabins to exclusive commercial projects.
Our team of technical advisors in branches across Poland provides professional support at every stage of implementation. From selecting the right products, through installation consultations, to after-sales service - you are in good hands with Onninen.
We invite you to take advantage of our experience and wide range of products from the best global brands. By collaborating with Onninen, you invest in proven solutions that will ensure long-lasting satisfaction for your clients and prestige for your installation company.