Measure the room before you ask
Before you ask for a tile estimate, record the finished opening sizes, write down the surface that is there now, and take photos that show the drain or the outlets, the edges where tile will meet another material, and anything that juts into the field. A room name does not carry those facts. The packet describes the room as it stands. It is not, by itself, a finished figure.
Sizes that bound the field
For a floor, measure length and width at the longest clear runs and note doors, cabinets, and islands that break the rectangle. For a wall, measure height and width of each plane and the openings in it. A single number labeled as approximate forces the estimator to invent the cuts. Write the unit you used and measure to the finished face you can touch.
Name the surface you can see
State whether you are looking at concrete, a wood subfloor, existing tile, a painted wall, or a backer that is already fastened. If furniture, a sheet floor, or finished tile hides the layer underneath, write "covered" instead of guessing the assembly. That word changes the estimate from a description of visible work into a description that still depends on what opening the surface will find.
What the photos have to show
Take one wide frame of the whole area, then close frames of transitions, the drain or the device boxes, and any loose, cracked, or stained material. A single flattering frame of a finished room hides the edges where the scope actually changes. Include a tape in one frame so the wide shot has a scale. Send the set together with the measurements.
Related Costa Tile Works services: Floor tile installation, Kitchen backsplash installation. See all services, service areas, and all guides.