Do I Need Cement Board Under Floor Tile

I d like to get as close as possible to matching the height of the existing tile.

Do i need cement board under floor tile. On top of the 2 6 will be 3 4 subfloor thinset cement board redgard thinset tile. This is a distinct advantage over plywood and drywall. Cement board also provides an additional layer over a plywood or particleboard subfloor adding stiffness to the tile. Cement board is an easily installed diy tile underlayment providing a stable dependable tile setting substrate while eliminating the complicated lath and mortar floating process.

This is the industry standard most preferred by construction pros when installing ceramic or porcelain tile backer board comes in four foot by eight foot and three foot by five. Cement board is a type of underlayment that is now standard for most tile installations but particularly for floor tile.