The best order for installing tiles is disputed. However, Andrea Seymour of Springdale Custom Builders, says: ‘I prefer to install shower walls first, then shower floor, then bathroom walls and floor.’
Floor first can be easier if you’re doing the job yourself, but in this case, be sure to protect the floor well since tiles and mortar can drop from walls onto the newly tiled floor. And always allow time for the mortar on the floor to set before tiling the walls. If you call in a pro, they’ll be able to let you know which order they are going to work in and why that’s preferable.