I plan to install tile on a Formica countertop with 1/4” cement backer board. Do I need to apply thin-set mortar between the backer board and Formica to stick it down?

– John

Hi John,

I would both glue and screw the cement backer board down to the plastic laminate countertop, using either thin set or construction adhesive, before laying the tile. This will make the backer board more rigid, and prevent the tile from cracking or coming loose.

Gluing the backer board to the countertop is particularly important when using 1/4” thick cement backer board, since it’s more flexible than 1/2” backer board.

Good luck with your project,

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Danny Lipford


Danny Lipford is a home improvement expert and television personality who started his remodeling business, Lipford Construction, at the age of 21 in Mobile, Alabama. He gained national recognition as the host of the nationally syndicated television show, Today's Homeowner with Danny Lipford, which started as a small cable show in Mobile. Danny's expertise in home improvement has also led him to be a contributor to popular magazines and websites and the go-to source for advice on everything related to the home. He has made over 200 national television appearances and served as the home improvement expert for CBS's The Early Show and The Weather Channel for over a decade. Danny is also the founder of 3 Echoes Content Studio, TodaysHomeowner.com, and Checking In With Chelsea, a décor and lifestyle blog.

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