Measuring Guides
How do I measure for bespoke shower glass?
Accurate measurements are essential when ordering bespoke shower glass. Our measuring guides are designed to help you understand the information needed for different shower layouts, including walk-in screens, corner enclosures, alcoves and shower doors.
You do not need final measurements before getting in touch. Approximate sizes, a sketch, photographs or plans are often enough for us to discuss your project and advise on the next steps.
If you are unsure at any stage, please contact us to request a bespoke quote — we are happy to help.
Before you start measuring
Please make sure:
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All walls, floors, trays and tiles are fully finished
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The floor/tray is level (if not then please let us know)
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You use a metal tape measure
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All measurements are taken in millimetres (mm)
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You measure carefully and double-check everything
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You do not make any deductions for fittings — we will allow for these
Measurements should always be taken from the finished surfaces, not before tiling or flooring is complete.
Should I provide a sketch with my measurements?
Yes, we strongly recommend providing a simple sketch showing all your measurements.
You can also download one of our measurement templates to make this easier.
A clear sketch helps us understand your space properly and reduces the risk of errors before your glass is made.
How do I measure a shower recess or alcove (wall to wall)?
To ensure an accurate fit, we require multiple measurements across the opening. Walls are rarely perfectly straight, so measuring in several places allows us to account for any variations.
What we need
Please take the following measurements:
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Width at the top
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Width at the middle
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Width at the bottom
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Height on the left-hand side
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Height on the right-hand side
Please provide all five measurements — do not just send the smallest.
Why are multiple measurements needed?
Even in newly tiled bathrooms, walls and floors can be slightly uneven. By taking measurements at different points, we can identify any variations and make the necessary allowances to ensure your glass fits precisely.
Important notes
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All measurements must be taken from finished surfaces (after tiling)
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Do not make any deductions — we will handle all adjustments
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Double-check all measurements before submitting
If you have any uncertainty when measuring your recess, feel free to contact us — it’s always better to check before your glass is manufactured.
How do I measure a shower recess with a sloping ceiling?
If your shower area includes a sloping ceiling, it’s important to capture both the width and the change in height accurately. This allows us to manufacture the glass to match the exact angle of your space.
What measurements do I need to provide?
Please take the following measurements:
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Width at the top
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Width at the middle
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Width at the bottom
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Height of the tallest side (full height wall)
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Height of the shortest side (where the ceiling slopes down)
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Flat ceiling section (if there is a short flat section before the slope begins)
Please provide all measurements clearly.
Do I need to measure the angle of the slope?
No — you do not have to calculate or measure any angles.
We can accurately calculate the angle of the slope using the measurements you provide.
Why are these measurements important?
Sloping ceilings introduce additional complexity, and even small inaccuracies can affect the final fit. Providing full and precise measurements allows us to ensure the glass is cut correctly to suit your space.
Important notes
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All measurements must be taken from finished surfaces (after tiling)
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Do not make any deductions — we will handle all adjustments
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Double-check all measurements before submitting
If you are unsure about any part of measuring a sloping ceiling, it’s always best to check with us before placing your order.
How do I measure a corner shower enclosure?
For a corner enclosure, it’s important to measure exactly where the glass will sit — not just wall-to-wall. This ensures the finished enclosure follows the correct line and fits your space precisely.
What measurements do I need to provide?
Please take the following measurements:
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Length of side 1
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Length of side 2
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Height of the glass
Where should I measure from?
Measurements should be taken along the exact position where the glass will sit.
Think of this as an imaginary line on the floor that represents the outer edge of your enclosure. Your measurements should follow this line, not the full wall length.
Why is this important?
Corner enclosures are not always perfectly square, and walls can vary slightly. Measuring along the intended glass position allows us to manufacture panels that align correctly and fit your space as intended.
Important notes
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All measurements must be taken from finished surfaces (after tiling)
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Do not make any deductions — we will handle all adjustments
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Double-check all measurements before submitting
If you’re unsure where the glass line should sit, feel free to contact us — we can guide you before you measure.
How do I check if my walls are out of plumb or bowed?
When ordering a bespoke shower enclosure, it is important to check whether your walls are straight and vertical.
Even small wall variations can affect how custom shower glass fits.
This quick guide explains how to measure out-of-plumb walls and bowed walls using simple tools.
What does "out of plumb" mean?
An out-of-plumb wall is a wall that leans slightly in or out instead of being perfectly vertical.
Because most of our shower glass is 2000mm high, even a small lean can affect how the glass fits against the wall.
What do I need to check if a wall is plumb?
For the most accurate results, we recommend using:
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A spirit level
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A 2000mm straight edge
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A tape measure
A full-length straight edge is much easier and more accurate than trying to measure in smaller sections.
How to measure an out-of-plumb wall?
Step 1
Place the 2000mm straight edge vertically against the wall.
Step 2
Use a spirit level against the straight edge to ensure it is perfectly vertical.
Step 3
Measure the largest gap between the wall and the straight edge.
Example:
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Largest gap = 5mm
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Wall is 5mm out of plumb over 2000mm
What does a bowed wall mean?
A bowed wall is a wall that curves or has uneven areas rather than being completely flat.
This is common with tiled walls and can affect how shower glass seals against the wall.
What to check for a bowed wall?
Place the straight edge flat against the wall horizontally and vertically.
Check for:
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Gaps in the middle
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High spots
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Uneven tiles
Measure the largest gap.
Example:
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5mm gap behind the straight edge
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Wall has a 5mm bow
Need help Measuring?
If you are unsure about your measurements, contact our team, we are happy to help and review measurements.
Common Questions
Do you offer site visits or surveys?
Redleys supplies bespoke shower glass nationwide but does not provide site visits or on-site measuring surveys. We can, however, offer practical guidance remotely using your dimensions, drawings, photographs and project information.
Who is responsible for the measurements?
All glass is made to the measurements you provide and approve, so it’s important that these are accurate.
If you’re unsure at any stage, we’re always happy to help before you confirm your order.
What should I do before confirming my measurements?
We recommend:
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Double-checking all measurements carefully
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Making sure measurements are taken from finished surfaces (after tiling)
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Providing a simple sketch to support your dimensions
Taking a little extra time here helps ensure everything fits perfectly.
What if I’m unsure?
If you’re unsure about any part of the process, just get in touch.
We’re happy to review your measurements, drawings or photos and guide you through anything you’re not certain about.