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The weight of a mirror depends on several factors, including its size, the thickness of the glass, the type of frame, and the materials used in its construction.
Float glass:
- This is the most common type of glass used in mirrors.
- Its approximate weight is 2.5 kg per square meter per millimeter of thickness.
- For example, a wall mirror measuring 90 cm x 60 cm with a glass thickness of 5 mm would weigh approximately 4.5 kg.
Tempered glass:
- This is a stronger and safer glass than float glass.
- Its approximate weight is 3 kg per square meter per millimeter of thickness.
- A bathroom mirror measuring 76 cm x 106 cm with a tempered glass thickness of 6 mm would weigh approximately 12.96 kg.
Annealed glass:
- This is a thinner and lighter glass than float glass.
- Its approximate weight is 2 kg per square meter per millimeter of thickness.
- A full-length mirror measuring 45 cm x 180 cm with an annealed glass thickness of 4 mm would weigh approximately 14.4 kg.
Mirrors with frames:
- The weight of the frame must be added to the weight of the glass to calculate the total weight of the mirror.
- Wooden frames typically weigh between 1 and 5 kg, while metal frames can weigh between 2 and 10 kg.
Beveled mirrors:
- The beveling (angled cut) of the mirror's edge can add a bit of extra weight.
- The additional weight is usually minimal, around 0.5 kg per linear meter of bevel.
In summary:
- Float glass mirrors are the most common and lightest.
- Tempered glass mirrors are heavier and more resistant.
- Annealed glass mirrors are the thinnest and lightest.
- The weight of the frame must be added to the weight of the glass to calculate the total weight of the mirror.
- Beveling adds a bit of extra weight to the mirror.
To calculate the approximate weight of a frameless mirror
- Measure the area of the mirror: Multiply the height by the width of the mirror, both in meters. For example, if the mirror measures 1.5 meters tall and 1 meter wide, the area would be 1.5 m x 1 m = 1.5 square meters.
- Convert the area to square centimeters: Multiply the area in square meters by 10,000. In the previous example, 1.5 m² x 10,000 cm²/m² = 15,000 cm².
- Multiply the area in square centimeters by the thickness of the glass in millimeters: In the previous example, if the thickness of the glass is 5 mm, 15,000 cm² x 5 mm = 75,000 mm².
- Multiply the result by a density factor: The density factor for glass is typically around 2.5 kg/m³. In this case, 75,000 mm² x (2.5 kg/m³) / (1,000,000 mm²/m²) = 1.875 kg.
Please note that:
- This is an approximate estimate. The actual weight of the mirror may vary slightly.
- Mirrors with frames may weigh more, depending on the frame material.
- Thicker and heavier mirrors are usually more resistant and durable.
Additional resources:
- Formula to calculate the weight of glass: https://www.youtube.com/watch?v=3cfEvlePU2c
If you need to know the exact weight of a mirror for a specific purpose, it is best to consult with the manufacturer or seller. If you're ready to get a quote, please contact OKC Glass today. We're happy to answer your questions and help you find the perfect solution for your office: Call us at (405)-666-0088 or visit our website at https://www.okc.glass/