This is a universal BBQ heat plate that can be adjusted to different lengths. There are 2 plates which affix to each other through the pre-drilled holes. The larger plate measures approximately 30.5cm x 9cm and the smaller plate measures approximately 20.2cm x 8.6cm. Plate can extend from 30.5cm - 46.9cm at approximately 13mm intervals by extending the 2 plates. Width remains approximately 9cm.