Wood Countertop Shark Tooth Miter Joints by Grothouse Wood Countertops with Shark Tooth Miter Joints were unveiled by Grothouse at the 2012 House Beautiful Kitchen of the Year designed by Mick De Giulio. A Shark Tooth Miter adds a unique and edgy element to the design. Shark Tooth Miter Joints have become increasingly popular and have been used in various style spaces.