How to Determine Width of Border Tiles

Measure the total distance from wall to wall on the long side of the room. If the length comes out in exact feet, you do not need to cut any border tiles for that direction. If the distance does not come out in exact feet, add 12 to the number of inches remaining, and divide by two. The resulting number is the width of your border tile.

For example, if the room is 10'6" long, add 12 to the 6, divide 18 by 2 and the result--9"-- is the proper width of your border tile. (Adding 12 to the "left over" inches guarantees that your border tile will always be more than half the width of a full tile.)

Perform the same measurement for the short side of the room.

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