The easiest tile size to install is large tiles, and they’re easier to install than small tiles—the job is faster and simpler when there’s less placing, adhering, and grouting to do. However, when tiles get really big, they’re more difficult to handle, cut, and fit. Standard floor tile sizes are 12-by-12 inches, 18-by-18 inches, and 12-by-24 inches.

It’s best to install a shower door after the bathroom tile is in place to ensure you have accurate measurements. If you try installing a shower door first, the tile might be too thick to install afterward, or the tile will be too thin and create a gap between the shower doors that allows water to leak. With the tile in place first, you’ll know the exact shower door size that you need.

You cannot tile directly over hot mop waterproofing because tile requires a smooth, solid surface to adhere properly. Additionally, the shower bed pan needs to be raised and sloped toward the drain to prevent water from pooling. However, you can hot mop and apply a sloped mortar bed over the top (to which the tile can then be adhered). 

The best bathroom floor tiles are strong enough to withstand the weight of a clawfoot tub. However, professional tile installation is essential. If the tiles are uneven or improperly fixed, they may crack under the pressure. Be careful when installing the tub—if it drops or drags on the tiles, it could easily cause scratches or cracks.