Technical Parameters of Ultralam™
Note: For the production of special batches of LVL with high grade veneer layers (according to the specification), design strength values can be increased by 15 – 20%.
| Condition | Relative to the Grain | Rb | Rs | R | X | I |
|---|---|---|---|---|---|---|
| bending | edgewise along the grain | 39 | 27 | 26,5 | 19,5 | 23,5 |
| bending | flatwise along the grain | 45 | 35,5 | 27,5 | 24 | 22,5 |
| compression | edgewise along the grain | 30 | 25,5 | 23,5 | 19,5 | 22 |
| compression | across the grain | 5 | 4,3 | 3,5 | 6,8 | 3,8 |
| compression | perpendicular to the plane of veneer sheets | 5 | 1,9 | 1,7 | 1,9 | 1,7 |
| tension | edgewise along the grain | 25 | 26,5 | 22,5 | 17,5 | 16,5 |
| tension | across the grain | – | – | 0,7 | – | – |
| shear along the glue line | edgewise along the grain | 2,6 | 2,6 | 2,6 | 2,6 | 2,6 |
| shear along the glue line | across the grain | 1,1 | 1,1 | 1,1 | 1,1 | 1,1 |
