Buying glass - things to consider

Measuring the radius of a curved edge on a glass tabletop can be done easily using the following methods:

1. Using a Ruler and Square Paper (Quick Method)

  1. Place a piece of graph paper under the curved corner.
  2. Align the straight edges of the glass with the grid lines.
  3. Mark where the curve starts along both edges.
  4. Measure the distance from the mark to the point where the straight edges meet (this is the radius).

2. Using a Compass or Circle Template

  • If you have a large compass, set it to different radius sizes and match it to the curve.
  • You can also use a circle template or an object (like a lid) that matches the curve.

3. Using a Flexible Tape or String

  • Place a flexible measuring tape or string along the curve.
  • Mark the start and end of the curve on the string.
  • Lay the string flat and measure the straight-line distance from start to end—this helps estimate the radius.

4. Using a Radius Gauge

  • A radius gauge (commonly used in metalworking or woodworking) can be placed against the curve to find the matching size.