The short answer: a mirror made of 4 mm glass weighs about 10 kg per square metre, and the frame adds 0 to 5 kg on top. So a 150 × 70 cm frameless mirror (1.05 m²) weighs roughly 10.5 kg, a round mirror of Ø 100 cm with a slim aluminium frame about 11 kg, and the largest sizes around 30 to 35 kg. Work out the glass area, multiply by 10, add the frame, and you have the figure your fixings have to carry.
How to calculate the weight of a mirror
Glass weighs 2.5 kg per square metre for every millimetre of thickness, so 4 mm glass comes to 10 kg per m². The calculation takes three steps:
- Work out the area in square metres: width × height in metres for a rectangle (150 × 70 cm = 1.5 × 0.7 = 1.05 m²), or 3.14 × radius² for a round mirror.
- Multiply the area by 10 to get the weight of the glass in kg.
- Add the frame: about 3 kg for a slim aluminium frame, about 5 kg for a carved frame of wood or eco material, and nothing for a frameless mirror.
The result is the weight of the mirror itself. It does not include the packaging, which matters to the courier but not to your wall. Arched and organic shapes are slightly lighter than the figure for their bounding rectangle, so treat the numbers as a safe upper estimate.
Weight by size and frame
| Mirror | Size | Glass (4 mm) | With frame, approx. |
|---|---|---|---|
| Round, slim aluminium frame | Ø 60 cm | 2.8 kg | 5.8 kg |
| Round, slim aluminium frame | Ø 100 cm | 7.9 kg | 10.9 kg |
| Round, slim aluminium frame | Ø 160 cm | 20.1 kg | 23.1 kg |
| Round, slim aluminium frame | Ø 200 cm | 31.4 kg | 34.4 kg |
| Arched, slim aluminium frame | 160 × 80 cm | 12.8 kg | up to 15.8 kg |
| Arched, slim aluminium frame | 200 × 140 cm | 28.0 kg | up to 31 kg |
| Frameless organic shape | 120 × 60 cm | 7.2 kg | up to 7.2 kg |
| Frameless organic shape | 210 × 100 cm | 21.0 kg | up to 21 kg |
| Baroque, carved frame | 50 × 100 cm | 5.0 kg | about 10 kg |
| Baroque, carved frame | 60 × 140 cm | 8.4 kg | about 13.4 kg |
All figures are estimates calculated from the dimensions, not weighed values for each mirror.
Why the frame matters less than the glass
On a small mirror the frame is a large share of the weight: on a Ø 60 cm round mirror it is about half. On a large mirror the glass takes over, and above 1.5 m² the frame is a rounding error. This is also why a big frameless mirror and a big framed one of the same size end up within a few kilograms of each other, and why size, not frame, decides how you have to hang it.
What the weight means for fixings
Choose fixings that are rated well above the mirror's weight; as a rule of thumb, at least twice as much. Below about 15 kg a good plug and screw in solid masonry or a stud is enough, with two fixing points on anything wider than 100 cm. Above that, do not rely on a plain plug in drywall: fix into a stud or into masonry, or use heavy-duty cavity anchors rated for the load. A safety hook on large formats is worth having whatever the wall is made of. The full walkthrough, including drywall, is in how to hang a mirror safely, and the height to aim for is in at what height to hang a mirror.
Handling and standing a heavy mirror
- Carrying: up to about 15 kg one person can manage with care; from 20 kg and for anything over 1.5 m in one direction, use two people.
- Edge, not face: lift and carry the mirror on its long edge with the glass facing your body. Never carry it by the frame's top edge alone.
- Resting it on the floor: stand it on a folded blanket, never directly on a hard floor, and lean it against the wall at a slight angle until the fixings are in.
- Before you drill: measure the wall and mark the position first; how to measure a wall for a mirror shows how.
Which of our mirrors are light, which are heavy
All our mirrors use 4 mm Optiwhite glass, so the weight follows the size almost exactly.
- Solaro — round, slim brushed gold aluminium frame, eight sizes from Ø 60 to Ø 200 cm, roughly 6 to 34 kg across the range.
- Grand Arcadian — arched, slim brushed gold aluminium frame, nine sizes from 160 × 80 to 200 × 140 cm, roughly 16 to 31 kg.
- Aurora — frameless organic shape, five formats from 120 × 60 to 210 × 100 cm, roughly 7 to 21 kg.
For carved frames see our gold baroque mirrors, for more shapes the round gold mirrors and organic mirrors. If you need a size we do not list, see made-to-measure mirrors.
Made to order
Every mirror is made to order from 4 mm Optiwhite glass in our workshop in Wrocław, Poland. The production time is stated in our shipping policy. When the mirror arrives, open the crate while the courier is still there: transport damage is only accepted with a damage report signed by you and the driver.
Frequently asked questions
How much does a large mirror weigh?
About 10 kg per square metre of 4 mm glass, plus 0 to 5 kg for the frame. A 150 × 70 cm frameless mirror is roughly 10.5 kg; the largest round mirrors are around 30 to 35 kg.
How do I calculate the weight of a mirror?
Multiply the area in square metres by 10 for 4 mm glass, then add about 3 kg for a slim aluminium frame, about 5 kg for a carved frame, or nothing for a frameless mirror.
Does a frame make a mirror much heavier?
On small mirrors yes, on large ones hardly. A frame adds 3 to 5 kg, which is about half the weight of a Ø 60 cm mirror but only a small share of a mirror above 1.5 m².
Can drywall hold a heavy mirror?
Only with the right fixing. Above about 15 kg, fix into a stud or into masonry, or use heavy-duty cavity anchors rated for the load, and add a safety hook on large formats.
How many people do I need to carry a large mirror?
One person can handle up to about 15 kg with care. From 20 kg, or when one side is longer than 1.5 m, use two people.