Measuring & Cutting Sealing Profiles
Customers often ask us for advice on how to choose the right replacement seal for their shower enclosure.
Our easy-to-use Shower Seal Configurator helps you find the right replacement seal in just a few simple steps. Simply select your shower enclosure type, including its shape and door configuration, followed by the type of seal you need to replace.
Below, you'll find some helpful tips to make replacing your shower seal as easy as possible.
How to Measure Your Shower Glass Thickness
For the most accurate measurement, use a pair of callipers to check the thickness of your shower glass. A tape measure may not be precise enough to distinguish between different glass thicknesses.
If you don't have callipers, you can also use a ruler or set square to estimate the thickness. Make sure you measure the glass itself, rather than any existing seals or fittings.
Position the callipers: Place the outer measuring jaws on either side of the glass panel, making sure they are positioned straight across the glass edge.
Close the jaws: Gently bring the jaws together until they lightly touch both sides of the glass. Avoid applying too much pressure, as this could affect the accuracy of the measurement.
Read the measurement: Check the measurement on the scale or digital display. This will give you the thickness of your shower glass in millimetres.
Before measuring, remove the existing shower seal to ensure you get an accurate measurement of the glass thickness.
We recommend measuring both the shower door and any fixed glass panels, as their thicknesses may differ.
Important: Our shower seals designed for 6 mm glass are only suitable for glass that is exactly 6 mm thick.
How to Measure the Correct Fin Length for Your Bottom Shower Seal
To determine the correct length of the flexible sealing fin, measure the gap between the bottom edge of your shower door and the shower tray.
Important: Always take this measurement with the shower door closed to ensure an accurate fit and help prevent water from escaping.
How to Cut Your Shower Seal to Size
Shower seals can be cut to the required length using a fine-toothed hacksaw or mitre shears. A pair of sharp secateurs can also be suitable, depending on the type of seal.
The flexible sealing fin is made from soft PVC and can easily be trimmed to the required size using a sharp utility knife.
Recommended Tools:
How to Measure the Radius of Curved and Quadrant Shower Enclosures
For curved or quadrant shower enclosures, you'll need a specially designed pre-curved shower seal. Standard straight seals are not flexible enough to follow the curve of the glass securely and may come loose or slip off.
Important: Before cutting your new shower seal to size, lay it alongside the old seal and make sure the curves line up. This will help ensure the replacement fits the shape of your shower door correctly. You can also refer to our technical drawings for guidance.
Please note: Our pre-curved shower seals are currently only available for shower enclosures with a radius of 500–550 mm.
How to Measure the Radius of Your Shower Enclosure
The Formula:
Length A - Length B = Radius
Example:
Length A = 800 mm
Length B = 300 mm
Radius = 800 mm - 300 mm = 500 mm
Another Example:
Length A = 900 mm
Length B = 350 mm
Radius = 900 mm - 350 mm = 550 mm