has good strength along the panel only

can be spilt in the plane of the panel

has greater impact resistance to blows than ordinary wood

cannot be bent more easily than ordinary wood of same thickness

5%

15%

25%

35%

less than one year

1 to 5 years

5 to 10 years

more than 10 years

15%

20%

22%

25%

3.5 N/mm2

7.0 N/mm2

10.5 N/mm2

14.0 N/mm2