- Time of issue:2018-09-05 00:00:00
Tile calculations are important to any installation. Figuring out how much tile is needed for each section of a job helps to reduce delays on the job due to a materials shortage, as well as wasted money on too much materials. When calculating tile for a room, remember to add in extra for cuts and breakage, and to consider borders and trim pieces as well.
Calculating Floor Tiles
To calculate the basic square footage of the floor in a room, multiple the length times the width in either inches or feet. For a room that measures 12 feet by 12 feet, this amounts to 144 square feet of tile. For straight-laid patterns of one size of tile, add an additional 5 percent to this number for waste, giving you 151 square feet. For tile patterns laid on the diagonal, or for materials more prone to breaking, like ungauged slate tiles, add 20 percent additional tile to the base square footage as waste, giving you 173 square feet.
Calculating Wall Tiles
For each wall in the room to be tiled, measure the height of the area to be tiled in inches. Normally, this number would be multiplied by the number of inches in length of the room and then divided by 144. However, the room is 144 inches long, which means that the height you are tiling in inches equals exactly the number of square feet needed to tile it.
For example, a wall being tiled to 52 inches in height, 144 inches long will need 52 square feet of tile. Add in 5 to 20 percent waste depending on the complexity of the pattern.
Calculating Floor Borders
Borders are measured in linear feet, or 12-inch increments. Determine how many inches in from the wall the border will lay, then subtract this number from each wall length.
For example, a border being installed 6 inches from the wall and running the perimeter of the room would require 44 linear feet, plus four corner pieces. Add 1 extra foot for waste if corner pieces are available. If no corner pieces are available, add 4 extra feet so the border corners can be mitered to meet one another properly at the edges.
Calculating Wall Borders and Trim
Wall tiles frequently require trim pieces, finish pieces or bullnose pieces. These pieces are installed along every exposed edge along the tile. This can include the top of a wainscot installation or the edges of a shower installation. Finish pieces are measured like borders, by the linear foot. Measure the length of each unfinished edge in inches and divide by 12 to get the number of linear feet needed. If this is wainscot edging, you will need 12 linear feet of edging for each wall, plus one or two pieces for waste. If a border is being run the perimeter of the room, you will need 12 linear feet per wall. This will mean 288 linear feet of border to encompass the entire room plus a few pieces for waste.
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Time of issue:2020-12-23 11:10:16