How to Measure Your Glass

To order the correct size of heat-resistant glass, follow these instructions carefully.

• If Your Original Glass Can Still Be Measured

If the original glass is still mostly intact — even if cracked — and its shape hasn’t been distorted:

Measure the width and height in millimetres.

Use a rigid measuring tape (not a flexible tailor’s tape).

Measure to the nearest millimetre for best accuracy.

Even if the glass is cracked, as long as it keeps its original shape, it can still be used to take measurements.

Important: If the original glass is measurable, this measurement is considered final. No clearance should be subtracted, as the factory-installed glass already includes the necessary tolerances.

• If the Glass Is Broken or Missing

If the original glass is completely broken or missing:

Measure the insertion space where the glass sits (inside the door frame).

This area is usually rectangular, so measure both:

Height

Width

Use a proper tape measure to get exact millimetres.

Important: Don’t forget clearance for expansion.

When taking final measurements, subtract 2 to 3 mm from each side (top, bottom, left, and right) to allow for heat expansion of metal parts.

Smaller glass: subtract a total of 4 mm from both height and width

Larger glass: subtract a total of 6 mm from both height and width

Note: Glass itself does not expand under heat, but the metal frame does. This clearance prevents pressure that can lead to breakage.

Do Not Use:

Tailor’s measuring tapes

Estimations or rounding to centimetres

One of the Most Common Causes of Glass Breakage:

Not allowing enough space between the glass and the frame - avoid tight fits and direct contact with metal parts like screws or handles.

Common Causes of Glass Breakage:

• Over-tightening the glass with screws, insufficient clearance from the frame, or direct contact with screws or handles
• Contact between the glass and burning wood
• Careless handling of tools near the glass during maintenance or cleaning
• Worn-out gaskets or sealing tapes, which no longer provide adequate cushioning or spacing