How to Measure for a Replacement Glass Table Top
How to Measure for a Replacement Glass Table Top (Step-by-Step UK Guide)
Updated · Home Improvement & DIY by Glass Helper UK
Ordering a replacement glass table top can seem tricky — but with the right tools and a few key steps, you can get accurate measurements that guarantee a perfect fit.
Whether you’re replacing broken glass or upgrading to custom toughened glass,
this UK guide walks you through the process with simple, safe instructions.
1) Gather the Right Tools
- Steel tape measure (with mm/cm readings)
- Notepad and pencil
- Masking tape (for marking corners)
- Optional: cardboard template for round or irregular shapes
A high-quality tape measure ensures millimetre precision, which is essential when ordering cut-to-size glass.
See Stanley Professional Tape Measure for a reliable option.
2) Measure the Table Frame or Base
If the glass is missing, measure the inside lip or support edge where the glass will rest.
Take three measurements each for the width and length, then record the smallest dimension — this ensures your glass fits snugly without forcing.
For circular tables, measure across the centre at multiple angles to confirm a perfect diameter.
3) Allow for Expansion and Tolerance
Glass expands slightly with temperature changes. Always deduct 2–3 mm from your tight measurement for rectangular tables, or 1–2 mm for circular tops.
Guardian Glass Europe confirms that small tolerances improve safety and prevent edge stress fractures.
4) Identify Glass Thickness
The correct thickness depends on size and support:
| Table Type | Recommended Thickness |
|---|---|
| Coffee Table | 6 mm – 8 mm Toughened Glass |
| Dining Table | 10 mm – 12 mm Toughened Glass |
| Glass Overlay | 4 mm – 6 mm Toughened Glass |
For more detail, see ToughGlaze UK’s recommendations for furniture glass.
5) Record Corner Type
Most glass tables have either square corners or radius corners.
To find your corner radius, trace around the existing corner using a sheet of paper, cut it out, and test-fit the curve.
Measure the radius using a ruler (5 mm, 10 mm, 15 mm, etc.).
Glass Genius provides a quick radius chart for reference.
6) Decide Edge Finish
The most popular edge styles include:
- Flat Polished: Sleek and modern, suitable for dining tables.
- Pencil Polished: Rounded and safer for family homes.
- Beveled Edge: Decorative finish for luxury or formal settings.
You can view examples in our article on
Top 10 Edge Finishes for Custom Glass Table Tops.
7) Final Check Before Ordering
Review all dimensions carefully — width, height, thickness, corner radius, and edge type.
Always double-check measurements if the glass sits inside a recess or frame.
Remember, toughened glass cannot be cut after production, so accuracy is crucial.
Order Your Replacement Glass Table Top
Cut-to-size · Polished edges · Toughened safety glass · UK delivery