The basic material is manufactured in 25mm thick sheets and bonded together to provide the required natural frequency at a design vertical load. Bearings are available in any plan size, however, it is more economical to make use of the standard sizes cut from the sheets. These range from a minimum of 100 x 100 x 25mm to 600 x 600 x 150mm generally in multiples of 50mm on plan dimensions.

Bearings are always used in groups rather than one large 'area' of bearing material. This ensures the optimum performance is gained together with other advantages such as ease of installation.