Measuring the internal and external diameter of a chair leg or sled base is essential to ensure you order the correct size furniture glide. Scratch no More furniture glides protect your floors from damage and prevent chairs from leaving scratches. Below, we explain how to measure both the internal and external diameter of a chair leg or sled base.

Always Measure Using a Calliper

For both internal and external diameters, it’s best to use a calliper. A calliper is a precision measuring tool used for highly accurate measurements. Its jaws can measure internal and external dimensions, depth, and step dimensions. The measurements are displayed on a scale located on the ruler and the sliding mechanism. Order a calliper here.

Measuring the Internal Diameter

The internal diameter refers to the hollow space inside the chair leg where the glide fits, such as with our Footfixx Hollow. To measure the internal diameter, use a calliper. Open the jaws of the calliper and insert them into the hollow space of the chair leg. Close the jaws until they touch the inner walls of the chair leg. Read the measurement on the calliper’s scale. This is the internal diameter of the chair leg.

Measuring the External Diameter

The external diameter refers to the outside measurement of a sled base or the external surface of a chair leg. This is crucial for selecting the correct size Chairfixx or when measuring threaded stems for our Footfixx Threaded or Threadfixx. To measure the external diameter, use a calliper. Place the jaws around the outside of the chair leg and close them until they touch the outer walls. Read the measurement on the scale. This is the external diameter of the sled base.

Double-Check Your Measurements

Once you have measured the internal or external diameter, you can confidently order the correct size furniture glides. Be sure to double-check your measurements before placing an order. If you order the wrong size, the glide will not fit your chair leg.

In conclusion, accurately measuring the internal and external diameter of a chair leg or sled base is essential to ensure you order the correct size furniture glide. A calliper allows you to achieve precise measurements every time.