At OzStair, we are sometimes forced to use a laminated product in lieu of a solid board. This is due to the fact that the timber requested may not be available in the requested size. For example, a standard tread is 280x42mm. A supplier may be unable to find the specified 280×42 board in the required length but might have a large quantity of 110x42mm, they would then bind 3 of the 110x42mm using biscuit joins and special glues to ensure the strength and durability of the product.
At Ozstair, you will never receive a product that has more than a 3 piece laminate to ensure strength and durability.