Measure the bathroom and calculate the tile quantities
Choose the tile layout and pattern
Gather tiles, thinset, grout, spacers, trowel, level, tile cutter, sponge, and safety gear
Remove old flooring or wall coverings if needed
Inspect and repair the subfloor or wall surface
Clean and dry the surface thoroughly
Install cement backer board or waterproof underlayment where required
Apply waterproofing membrane in wet areas
Mark reference lines and dry-fit the tiles
Mix thinset according to the instructions
Spread thinset with a notched trowel
Set tiles into the thinset
Insert spacers to keep even grout joints
Cut tiles to fit edges, corners, and fixtures
Check alignment and level as you go
Allow the thinset to cure
Remove spacers
Mix grout and apply it with a grout float
Wipe excess grout from the tile surface
Clean haze after the grout firms up
Seal grout if required
Reinstall trim, fixtures, and baseboards
Caulk expansion joints and edges with silicone caulk
Allow everything to fully cure before regular use