Dimensions:
Inside Width: 27 1/8″ (690mm)
Inside Height: 17 3/4″ (450mm)
Frame Width: 27 1/2″ (700mm)
Frame Height: 18 1/8″ (460mm)
The Inside measurement refers to the suggested dimensions of the masonry which the cooktop will cover. The Frame is slightly larger and therefore trims out the masonry.
1/2″ Rope Gasketing to seal between cooktop and masonry is included with this product.