Susiequ
TF
I have recently done a bathroom with a glass mosaic border. The mosaics were thinner than the tiles, so I used a thicker bed of addy, which meant a lot of cleaning up as it came through the mesh backing. I have since been told that there is a backer board that I could have used to bring the mosaics out to the level of the tiles. Any info on this board and where to get it please.