| Measures | Qty |
|---|---|
| Average length | 40 cm |
| Average width | 24 cm |
| Average useful length | 34.5 cm |
| Average useful width | 20 cm |
| Average Thickness | 1.2 cm |
| Average weight per piece | 2.9 kg |
| Average weight per sq. meter | 40.6 kg |
| Average number of pieces per sq. meter | 14 pcs |
