| Measures | Qty |
|---|---|
| Average length | 45.5 cm |
| Average width | 31.5 cm |
| Average useful length | 40cm |
| Average useful width | 28 cm |
| Average Thickness | 1.2 cm |
| Average weight per piece | 3.7 kg |
| Average weight per sq. meter | 32.2 kg |
| Average number of pieces per sq. meter | 8.6 pcs |
