Dart Board Height- The center of the bullseye should be exactly 5 Feet 8 Inches from the floor.
Dart Board Distance- The dart board should be 7 feet 9 1/4  inches from the throw line.

Diagonal Distance- If you do the first two steps correctly the diagonal distance from the center of the bullseye to the throw line will be 9 feet 7 3/8".

Dart Board- The diameter of the dart board should be a maximum of 18 inches, but is typically 17 3/4".

Other things to remember: Most dart boards are about 1 1/2" thick, so be sure to measure from the front of the board and not the wall. Also be sure to consider the area you will be mounting the dartboard, you will need some decent lighting and a couple of extra feet behind the throw line to allow for the back leg to stretch out. Be sure to install some type of backboard or cabinet to go with the board, everyone misses on occasion and you never know what level of player will show up to throw some darts.
A dartboard measures 17 3/4" in diameter and has 20 equal pies with each pie containing a double ring and a triple ring. The double ring is the outermost ring on the dartboard and is double the number of the pie. The triple ring is the interior ring and it is worth triple points of whatever pie number it is in. The bullseye also has an outer ring which is worth 25 points, the center of the bullseye is worth 50 points. Also be sure to get the free Printable Dart Tournament Brackets to use for all of your dart tournaments.

How To Play Cricket