Sizes
Roof lantern sizes
Lanterns are sold by the external size of the kerb they sit on, width first. These are the standard sizes in the price table; any other size up to 3500 x 6000 mm is made to measure.
| Kerb size | Roof area | Rise above kerb | Approx. weight | Guide price from, inc VAT |
|---|---|---|---|---|
| 1000 × 1000 mm | 1.00 m² | ≈230 mm | ≈65 kg | £1,095£912 ex VAT |
| 1200 × 1200 mm | 1.44 m² | ≈280 mm | ≈85 kg | £1,295£1,079 ex VAT |
| 1000 × 1500 mm | 1.50 m² | ≈230 mm | ≈90 kg | £1,295£1,079 ex VAT |
| 1000 × 2000 mm | 2.00 m² | ≈230 mm | ≈115 kg | £1,495£1,246 ex VAT |
| 1000 × 2500 mm | 2.50 m² | ≈230 mm | ≈140 kg | £1,795£1,496 ex VAT |
| 1000 × 3000 mm | 3.00 m² | ≈230 mm | ≈165 kg | £1,995£1,662 ex VAT |
| 1500 × 1500 mm | 2.25 m² | ≈350 mm | ≈120 kg | £1,595£1,329 ex VAT |
| 1500 × 2000 mm | 3.00 m² | ≈350 mm | ≈155 kg | £1,995£1,662 ex VAT |
| 1500 × 2500 mm | 3.75 m² | ≈350 mm | ≈190 kg | £2,295£1,912 ex VAT |
| 1500 × 3000 mm | 4.50 m² | ≈350 mm | ≈220 kg | £2,595£2,162 ex VAT |
| 2000 × 2000 mm | 4.00 m² | ≈470 mm | ≈195 kg | £2,395£1,996 ex VAT |
| 2000 × 3000 mm | 6.00 m² | ≈470 mm | ≈280 kg | £3,195£2,662 ex VAT |
| 2000 × 4000 mm | 8.00 m² | ≈470 mm | ≈360 kg | £4,095£3,412 ex VAT |
| 2500 × 4000 mm | 10.00 m² | ≈580 mm | ≈435 kg | £4,895£4,079 ex VAT |
| 3000 × 4000 mm | 12.00 m² | ≈700 mm | ≈510 kg | £5,695£4,746 ex VAT |
Rise assumes a 25° pitch; weights are rough planning figures for double glazing. The manufacturer's figures are on your quote.
Not a standard size?
We quote made-to-measure lanterns to your exact kerb size. If your kerb is not built yet, building it to suit a standard size is usually quicker and cheaper. Read how to measure and which size to choose.