It is called the oche (ah-chee), toe line, or the Hockey.
5 feet & 8 inches from the floor to the centre of the bullseye. 7Feet 9 and a quarter inches from the face of the board to the throw line or "oche" For Soft tip darts 8 feet from the face of the board to the throw line or "oche"
The British Darts Organisation and the American Darts Organization specify that the distance along the floor from the plane of the board to the toe line (a.k.a. oche, which is pronounced like hockey with a silent H) is 7' 9¼". Also, the distance from the floor to the center of the bullseye is 5' 8". Rather than dropping a plum line to the floor then measuring along the floor, it is easier to measure directly from the center of the bullseye to the oche. Since that distance is the hypotenuse of a right triangle, you can calculate it using the Pythagorean theorem, a^2 + b^2 = c^2. Squaring 5'8" and 7'9¼", adding the squares, then finding the square root of the sum gives you about 9' 7.41". If the oche is a strip of tape, the measurement is to the board side of the tape. In the case of a raised oche, like a long block of wood, the measurement is to the thrower's side of the block.
The Bullseye must be exactly 5 feet 8 inches from the floor and the toe line (where you stand to throw the darts) is 7 feet 9 and 1/4 inches from the board. Also see http://www.indepthinfo.com/darts/setup.shtml
Facilities for darts are in may bars, pubs and clubs and there is 7-feet between the dart board and the toe line. The equipment needed for darts includes a numbered dart board and darts.
No you cannot step on the oche line. = Darts Set Up = Dart Boards vary in price from the cheap to the very expensive. A nice professional board can be acquired for under $50.00 along with two decent sets of darts. Cheap boards can also be fun, but you will find that the darts accompanying them suffer somewhat in balance and accuracy. The board itself should be set up with the bulls eye exactly 5 feet 8 inches from the floor. It is wise to place some type of board behind (and around) the dart board, just to save your drywall or panelling in case of complete misses. The board itself is 18 inches in diameter and divided into 20 sections. The section marked 20 is always centered at the top. The toe line (also known as the oche - named for a brewers case - Hockey - that was originally used to establish the distance between the board and the toe line) should be exactly 7 feet 9 1/4 inches from the face of the board. The line on the floor may also be a raised bar, 1 1/2 inches in height and two feet long. In most homes this will be an unwanted obstruction so a piece of masking tape is often used There should be at least two sets of 3 darts. Each player or team uses a set (a player may even own his own set). The darts themselves have a maximum length of 12 inches and a maximum weight of 50 grams. Generally, a chalkboard, hung near the board is used for keeping score.
The height of a regulation dartboard is 5'8" from the center of the bullseye to the floor, with a toe line at 7' 9.5" inches from the front of the board for steel tip darts.
The idiomatic expression "to toe the line" means to conform to rules or standards. For example, you could use it in a sentence like "It is important for employees to toe the line when it comes to following company policies and procedures."
To toe the line, or toe the chalk line, is to follow orders and do what you are told. In some circumstances people are asked to stand in front of a line (which may or may not be drawn in chalk) with their toes at the line. If people do that, it is an indication of obedience.
An angulated fracture is one in which the bones, once broken, no longer line up in the straight line they used to assume, and have broken into an angle. The fifth toe is the little toe.
Toe the line
What is expected of you. You do nothing wrong.