Shower Door Bottom Seals
Find the right shower door bottom seal to help reduce water leaking under your shower door.
Start with two quick checks: your glass thickness and the gap under the glass.
Not sure which seal fits? Send us a photo on WhatsApp.
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Once you know your glass thickness and bottom gap, use the filters below to narrow products by door type and seal profile.
Common bottom seal profiles include fin seals, sweep seals, side-fin seals, brush-style seals, bulb seals and U-channel bottom seals for sliding doors, pivot and hinged doors, frameless doors and bath screens.
T-Slot Framed Shower Door Bottom Seal 4mm Head 8mm Fin VH010
10mm T-Slot Shower Threshold & Framed Door Seal 10mm Fin VH009
Flexible T-Slot Framed Shower Door Seal – 6mm Head, 11mm Thick Fin VH003
T-Slot Framed Shower Door Seal 6mm Head, 15mm Fin VH002
Flexible T-Slot Framed Shower Door Seal – 3mm Head, 10mm Fin VH001
6mm Insert Fin Seal for Framed & Folding Shower Doors 35mm Fin VL002
6.5mm Stepped T-Slot Bi-Fold Framed Shower Door Seal – 15mm Fin VI005
3mm Slim T-Slot Bi-Fold Framed Shower Door Seal – 15mm Fin VI004
10mm T-Slot Bi-Fold Framed Shower Door Seal 32mm Fin VI003
8mm T-Bar Framed Shower Door Sweep 17mm Fin VH013
Framed Shower Door Bottom T-Slot Seal 6mm Head 21mm Fin VH012
Framed Shower Door Bottom T-Slot Seal 5mm Head 22mm Fin VH011
Seal for Framed Shower Doors 7mm Width VL005
Glass Edge Protection & Frame Infill Strip VL004
Bottom Seal For Framed Shower Door 12mm Width RY5306
L Shape Adhesive Shower Door Seal 11mm Fin VG003
8mm Self-Adhesive T-Shape Shower Threshold 13mm Fin RY3463
Dark Grey Framed Shower Door Bottom Seal 4.7mm T-Head 12mm Fin VF007
6mm T-Slot Seal for Framed Shower Doors 6mm Height RY5943
7mm T-Slot Seal for Framed Shower Doors 9mm Height RY6306
8mm T-Slot Seal for Framed Shower Doors 11mm Height RY7746
Grey Framed Shower Door Track Insert Seal SV001
7mm T-Bar Shower Frame Door Bulb Seal VD005
Factory-Direct Bottom Shower Door Seals Since 1998
Since 1998, SIMBA has specialised in shower door seal manufacturing. Our factory-direct supply helps us control profile shape, material flexibility and replacement support for leaking shower screens.
Bottom seals can look similar online, but small differences in glass thickness, fin length, seal height, and gap size can affect the fit.
Not sure which bottom seal fits? Send us your glass thickness, gap size and a photo of your old seal on WhatsApp. We’ll help you choose the best match before you order.
How to Choose the Right Shower Door Bottom Seal
Choose in this order: glass thickness first, then the gap under the glass, then the seal profile or door type.
Choose by Glass Thickness
- 4–6mm glass For thinner shower screens and many bath screen setups.
- 8–10mm glass For thicker frameless, pivot and hinged shower doors.
- 12mm glass Used for thicker or specialist glass panels.
Choose by Bottom Gap
Measure with the door closed, from the bottom of the glass to the tray or floor. If the gap varies, use the larger measurement.
Small gaps usually need a shorter fin. Larger or uneven gaps may need a longer flexible fin or side-fin profile.
Choose by Door Type
- Sliding doors Side-fin seal may work better.
- Frameless doors and bath screens U-channel and bottom fin seals are commonly used.
- Pivot and hinged doors Fin and sweep seals are often suitable.
- Uneven gaps Longer flexible fins or side-fin
How to Measure Before Ordering
Measure glass thickness
Measure the exposed glass edge with a ruler or caliper. Common UK sizes include 4mm, 5mm, 6mm, 8mm and 10mm.
Measure the bottom gap
Close the door and measure from the bottom of the glass to the tray or floor. If the gap is different at each end, use the larger measurement.
Not sure which bottom shower seal you need?
If your shower door is old, has no model number, or the original bottom seal is no longer available, send us photos before ordering.
We’ll check the seal profile, glass thickness and fitting position to help you find the closest suitable replacement.
How Our Bottom Shower Door Seals Help Stop Leaks
A bottom shower door seal fits along the lower edge of the glass to help guide water back into the shower tray. Depending on the design, it may use a flexible fin, sweep or drip profile to improve the seal at the base of your shower screen.
For the best fit, choose a seal that matches your glass thickness, the gap under the glass and the way your door opens. If the fin is too short, water may still escape. If it is too long, it may drag on the tray or stop the door from closing smoothly.
Most bottom shower door seals can be trimmed to length and pushed onto the glass without glue, making them a simple replacement for worn, cracked or leaking shower screen seals. All our bottom shower door seals are quality checked before dispatch, so you can choose a clean, reliable replacement with confidence.
Brilliant service and product
Thank you very much for tending with detailed attention and professionalism to the little issues/hiccups throughout this delivery process. Much appreciated.
Stephane B.
Brilliant service - so impressed.
This has been a fantastic service in a Sunday. Simba advice and recommendation has been excellent (a Sunday). Huge thanks
Jeremy F.
Perfect replacement bifold door seal
Had a rubber bottom strip deteriorated on a my shower bifold hinge section between the two doors, couldn’t find a replacement from the manufacturer (Coram, Optima) as doors were so old. Took a chance as the ‘T’ seals are the same measurement. Fitted perfectly, really happy.
Gerry K.
Frequently Asked Questions
1. How do I choose the right bottom shower door seal?
Start with two measurements: your glass thickness and the gap under the glass. Then compare the side profile of your old seal with the product images. A small difference in channel width, fin length, or seal shape can affect the fit.
If you are unsure, send us a photo of your old seal, glass edge, or leaking area before ordering.
2. What is the best bottom shower door seal to prevent leaks?
The best option depends on where the water is escaping. For most pivot and frameless shower doors, a flexible fin or drip rail bottom seal is usually the first option to check. For very small gaps, choose a slim side-fin or adhesive threshold seal. For sliding doors, check track clearance before fitting a bottom side-fin seal.
For more severe leaks, combining a bottom seal with a D510 water deflector or PV29 shower threshold seal can provide extra protection. You can also check our shower door leaking solutions guide.
3. What is the rubber strip at the bottom of a shower door called?
4. Why is my bottom shower seal still leaking?
A bottom shower door seal may still leak if the seal type does not match your door, the fin is too short, the bottom gap is uneven, or the shower door is not aligned correctly. In some installations, a bottom seal alone may not be enough, especially if there is no threshold strip to help contain and redirect water.
Before choosing a replacement, measure the gap under the glass, compare the side profile of your old seal, and check whether your shower setup needs both a bottom seal and a threshold strip.
5. Are bottom shower door seals universal?
6. What makes SIMBA bottom shower door seals different?
SIMBA has specialised in shower door seal manufacturing since 1998. Our factory-direct supply chain gives us better control over profile accuracy, material flexibility, and replacement support.
We also help customers identify hard-to-match seals from photos, especially for older shower screens or discontinued shower door profiles.
7. Do I need to order a sample first?
In most cases, no. Shower door bottom seals are chosen by glass thickness, gap size and profile shape.
If you are unsure, send us a photo of your current seal along with your measurements, and we’ll help you choose the closest suitable replacement before you place your order.