What is BS EN 251 – Connecting dimension for shower trays about? 
BS EN 251 is a European Standard that discusses shower trays. The main objective of BS EN 251 is to provide best industry connecting dimensions for shower trays to ensure your sanitary installations are safe, reliable and effective at the point of use.
BS EN 251 specifies requirements for the connecting dimensions of shower trays, regardless of the material used for their manufacture.
BS EN 251 applies to shower trays used for domestic purposes and complements the standards for Shower trays made from different materials, the existing standards on waste fittings (EN 274-1) in terms of their dimensional requirements.
Who is BS EN 251 - Connecting dimension for shower trays for?  
BS EN 251 on connecting dimension for shower trays is relevant to:  
- Manufacturers of sanitary installations
- Manufacturers of shower trays 
- Quality control and testing personnel 
- Product designers 
- Interior designers
Why should you use BS EN 251 - Connecting dimension for shower trays?  
When it comes to manufacturing sanitary installations, adopting standardized best industry connecting dimensions are important to ensure your products meet the necessary performance requirements. In this regard, shower trays need to adhere to best industry requirements for effective performance and functionality and to prevent unwanted overflows and spills.
In this regard, BS EN 251 contains requirements for connecting dimensions for optimal performance and effective use of shower trays. It includes:
- Dimensions of the waste outlet
- Clearance around the waste outlet hole
- Dimensions and clearance around the overflow hole
Tests for the determination of the fit of the control gauge in the waste outlet hole is also provided.
Thus, if you are a manufacturer of shower trays, by adopting BS EN 251 guidelines you can ensure that your products are safe, reliable and effective at the point of use.
