Eggcrate floor registers can be made in standard and custom sizing, and are designed for maximum durability. Flush mount eggcrate floor registers sit flush with 3/4” hardwood flooring. It is designed to lay flat with the surface of the wood flooring, providing a smooth and seamless look. Each frame is grooved on the outside to accommodate most 3/4” tongue and groove flooring, although it is not required for installation. It is recommended that this floor register be installed during the installation of your hardwood floor.